Synergistic stabilizer compositions and methods of using same to protect organic materials from UV rays and thermal degradation

Abstract

Provided herein are synergistic stabilizer compositions having a stabilizing amount of a co-synergist; optionally a stabilizing amount of a co-active agent; a stable amount of an ultraviolet absorber selected from the group consisting of an o-hydroxyphenyltriazine, an o-hydroxybenzophenone, an oxanilide, a cyanoacrylate, a benzoxazinone, optionally an o-hydroxyphenylbenzotriazole, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer. The total weight of co-synergist (IV) and co-active agent (when present) is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of co-synergist to co-active agent (when present) is from 1: 99 to 99: 1. Also disclosed are masterbatch concentrates, stable polymer compositions, and stable articles, all containing the stabilizer composition.

Description

BACKGROUND OF THE INVENTION

[0001] Technical field. The present invention generally relates to the field of adding stabilizer compositions to organic materials, which stabilizer compositions prevent the deleterious effects of prolonged exposure to UV radiation. More specifically, the present disclosure relates to stabilizer compositions having UV light stabilizers and their use in a variety of organic materials such as polymer resins to achieve improved service characteristics.

[0002] Description of related technologies. It is known that a variety of organic materials undergo degradation by several mechanisms, which include exposure to electromagnetic radiation such as sunlight and ultraviolet (“UV”) radiation from other sources and heat. For example, as a result of prolonged exposure to the sun, polymer materials such as plastics often discolor, lose gloss and mechanical properties and / or become brittle. Accordingly, many techniques such as UV light absorbers and various other stabilizers have been developed for materials, which are capable of inhibiting such degradation in these materials.

[0003] In particular, UV light absorbers such as benzotriazole and benzophenone were initially used to stabilize polymer materials and prevent such materials from degradation by exposure to UV light. Subsequently, it was found that hindered amine light stabilizers (“HALS”), which scavenge free radicals formed in polymer materials when exposed to UV light, are more effective than UV light absorbers (“UVA”). Accordingly, the combined use of HALS and UV light absorbers is routinely used to stabilize polymer materials.

[0004] The use of UVA alone or in combination with HALS to stabilize polymers (such as coatings and plastics) against weathering due to the direct or indirect effects of heat and ultraviolet light remains an active area of research. For example, U.S. Patent Nos. 4,619,956; 4,740,542; and 5,760,228 disclose compositions and / or methods for stabilizing polymer films, coatings, or molded articles against the effects of light, humidity, or oxygen by incorporating aryltriazines and HALS into the polymers. It is further disclosed that such triazines, when combined with certain HALS, exhibit an enhanced degree of stabilization due to a synergistic effect.

[0005] The synergistic combination of stabilizer compositions is further demonstrated by U.S. Patent No. 6,051,164, in which it is disclosed that polyolefins containing certain ratios of HALS (having a molecular weight of at least 500 Da) and o-hydroxyphenyltriazine provide superior performance characteristics over polyolefins containing individual stabilizers or those having both HALS and triazines but not in synergistic ratios. Similarly, U.S. Patent No. 6,843,939 discloses synergistic UV stabilizing additive blends, which include o-hydroxyphenyltriazine, HALS, and hindered hydroxybenzoates, and provide improved performance over individual stabilizers or combinations of only 2 of these stabilizer additives.

[0006] Recently, US11,091,615 disclosed the use of "co - agents" to further enhance the synergistic effect of the combination of UV absorbers and hindered amine light stabilizers (HALS) in the field of polymer stabilization. Some important examples of the co - agents claimed in US11,091,615 include alkoxylated C 12 -C 60 alcohols or their mono - alkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof.

[0007] Thus, synergistic combinations of stabilizer additives can still be found, even if the compounds themselves may be known for use alone for a particular purpose or known to be used together for a particular purpose at concentrations or ratios not previously disclosed or suggested.

[0008] The discovery of such synergistic stabilizer additives that significantly improve the performance characteristics of a variety of organic materials that are subject to mechanical stress or that act as in oxidation, chain scission, and uncontrolled recombination and cross - linking reactions (caused by photo - oxidation and heat) would be a useful development in the art and could be quickly adopted in many industries for materials requiring such stabilization. SUMMARY OF THE INVENTION

[0009] Provided herein are synergistic stabilizer compositions having a stabilizing amount of a co - synergist selected from the group consisting of bis - amides of fatty acids; optionally a stabilizing amount of a co - agent; a stabilizing amount of an ultraviolet absorber selected from o - hydroxyphenyltriazines, o - hydroxybenzophenones, oxanilides, cyanoacrylates, benzoxazinones, optionally o - hydroxyphenylbenzotriazoles, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer. The total weight of the co - synergist (IV) and the co - agent (when present) is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of the co - synergist to the co - agent (when present) is from 1:99 to 99:1.

[0010] Also disclosed is a stabilized polymer composition comprising an organic material to be stabilized and the stabilizer composition. The stabilized polymer composition may comprise from 0.01 wt.% to 15 wt.% of the stabilizer composition based on the total weight of the stabilized polymer composition.

[0011] Also disclosed is a masterbatch concentrate comprising an organic material to be stabilized as defined herein and the stabilizer composition, wherein the masterbatch concentrate comprises from 10 wt.% to 90 wt.% of the stabilizer composition based on the total weight of the masterbatch concentrate.

[0012] Also disclosed are stabilized articles comprising, based on the total weight of the stabilized article, from 0.01 wt.% to 15 wt.% of a stabilizer composition, a stabilizing amount of an ultraviolet light absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds; o - hydroxybenzophenone compounds; oxanilide; cyanoacrylate; benzoxazinone compounds; and mixtures thereof; a stabilizing amount of a hindered amine light stabilizer compound (HALS); a stabilizing amount of a co - synergist selected from the group consisting of bisamides of fatty acids; and a stabilizing amount of a co - activator; wherein the total weight of the co - synergist (IV) and the co - activator is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the ratio of the co - synergist (IV) to the co - activator is from 1:99 to 99:1; or a masterbatch concentrate as defined herein; such that the final concentration of the combined co - synergist (IV) and co - activator in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0013] Also disclosed are stabilized articles comprising, based on the total weight of the stabilized article, from 0.01 wt.% to 15 wt.% of a stabilizer composition, a stabilizing amount of an ultraviolet light absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds; o - hydroxybenzophenone compounds; o - hydroxyphenylbenzotriazole compounds; oxanilide; cyanoacrylate; benzoxazinone compounds; and mixtures thereof; a stabilizing amount of a hindered amine light stabilizer compound (HALS); a stabilizing amount of a co - synergist selected from the group consisting of bisamides of fatty acids; wherein the co - activator is selected from the group consisting of: alkoxylated C 12 -C 60 - alcohols or their mono - alkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, which are absent from the stabilizer composition (0 wt.%); and wherein the co - synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; such that the final concentration of the combined co - synergist (IV) and co - activator in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0014] Also disclosed are kits which may include, in a single container or multiple containers, any of the stabilizer compositions or their masterbatch concentrates disclosed herein, an organic material to be stabilized, and optionally one or more other co - stabilizers and / or co - additives.

[0015] Also disclosed is a method of combining any of the stabilizer compositions or masterbatch concentrates disclosed herein, and optionally one or more other co-stabilizers and / or co-additives, with an organic material to be stabilized.

[0016] Also disclosed is a method for forming a stabilized article, the method comprising combining any of the stabilizer compositions or masterbatch concentrates disclosed herein, and optionally one or more other co-stabilizers and / or co-additives, with an organic material to be stabilized to form a stabilized polymer composition; and shaping the stabilized polymer composition into a stabilized article.

[0017] Also disclosed are methods for protecting organic materials from the deleterious effects of UV irradiation and heat, the methods comprising combining the organic material with any of the stabilizer compositions or masterbatch concentrates disclosed herein, and optionally one or more other co-stabilizers and / or co-additives, with the organic material to be stabilized. The methods include adding any of the stabilizer compositions in an amount effective to stabilize as described herein to the organic material to be stabilized before, during, or after processing.

[0018] These and other objects, features, and advantages of the present disclosure will be apparent from the following detailed description and the appended examples. DETAILED DESCRIPTION

[0019] The foregoing and additional objects of the present invention are achieved in accordance with the principles of the present invention as described herein, wherein the inventors have detailed the following unexpected findings. Certain classes of compounds have a synergistic effect on the stabilizing properties of UV absorbers, particularly when combined with free radical stabilizers such as hindered amine light stabilizers (HALS), and are effective in stabilizing a variety of organic materials vulnerable to deleterious effects caused by prolonged exposure to heat and / or light, such as from electromagnetic radiation. For the purposes of describing the present invention, throughout this specification and the claims, these certain classes of additive compounds are referred to as "co-synergists". As used throughout this specification and the claims, the term "UV stabilizer" shall refer to the class of ultraviolet ("UV") light absorbers (or "UVA") or hindered amine light stabilizers ("HALS") described herein, either alone as a class or in combination with each other. A reference to UVA or HALS alone refers only to the respective individual classes of compounds. Even more unexpectedly, the inventors have found that when "co-synergists" and "co-activators" are used together, there is a further synergistic effect to enhance the performance of UV absorbers and hindered amine light stabilizers (HALS). The term "co-activator" is described herein and also in US11,091,615. The "co-activator" and "co-synergist" act similarly, i.e., to enhance the performance of a UV stabilizing composition comprising a UV absorber and a hindered amine light stabilizer (HALS), but they belong to two different classes of compounds.

[0020] Organic materials (such as polymer resins) containing a stabilizing amount of these co - synergists (with and without co - activators) and UV stabilizers have enhanced performance characteristics even when used at lower loading levels.

[0021] The inventors of the present invention have discovered that certain additives herein referred to as "co - synergists", which are currently known in the art to be useful as anti - caking agents and for providing various other performance functions to polymer resins, have a synergistic effect on the stabilizing properties of UV stabilizers and are thus effective for stabilizing a variety of organic materials vulnerable to deleterious effects caused by exposure to UV rays, heat, and / or oxidation - even at concentrations lower than those typically used to achieve other performance functions exemplified in the prior art. Compared to prior - art level stabilizer compositions, organic materials containing the stabilizer compositions described herein provide such improved performance characteristics against exposure to electromagnetic radiation and thermal radiation, the results being completely unexpected and unforeseen. Accordingly, any additive or mixture of additives herein described that acts synergistically with UV stabilizers (UV absorbers and HALS) to further enhance the stability of organic materials against the deleterious effects of UV rays, heat, and / or oxidation is referred to herein as a "co - synergist".

[0022] In some cases, a further synergistic stabilizing effect is obtained when the co - synergist is combined with a "co - activator" as described herein. The term "co - activator" as described in US11,091,615 (incorporated herein by reference in its entirety) refers to any such additive compound or mixture of additive compounds that acts synergistically with a UV absorber, optionally in combination with a hindered amine light stabilizer, to enhance the stability of organic materials against the deleterious effects of UV rays, heat, and / or oxidation. Stabilizer compositions containing these co - activators are optionally capable of providing a contact angle with water at the surface of articles containing the stabilizer compositions of greater than 20°.

[0023] Stabilizer composition . The stabilizer compositions according to the present invention are suitable for stabilizing various organic materials that are subject to mechanical stress, discoloration, or effects such as oxidation, chain scission, and uncontrolled recombination and cross - linking reactions (caused by photo - oxidation), and can be incorporated into such organic materials to protect it from these deleterious effects, or it can be used as a UV - filtering layer or within such a filtering layer to prevent UV radiation from reaching the organic material or articles produced from the organic material.

[0024] Accordingly, in a first aspect, the present disclosure provides a stabilizer composition having a stabilizing amount of a co - synergist; optionally a stabilizing amount of a co - activator; a stabilizing amount of an ultraviolet absorber selected from o - hydroxyphenyltriazines, o - hydroxybenzophenones, oxanilides, cyanoacrylates, benzoxazinones, optionally o - hydroxyphenylbenzotriazoles, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer; wherein the total weight of the co - synergist (IV) and the co - activator (when present) is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of the co - synergist to the co - activator (when present) is from 1:99 to 99:1.

[0025] As used herein, the term "hydrocarbyl" is a general term encompassing aliphatic, cycloaliphatic, and aromatic groups having an all - carbon backbone and consisting of carbon and hydrogen atoms. In some cases, as defined herein, one or more carbon atoms constituting the carbon backbone may optionally be replaced or interrupted by a particular atom or group of atoms such as one or more heteroatoms among N, O, and / or S. Examples of hydrocarbyl groups include alkyl, cycloalkyl, cycloalkenyl, aryl, substituted aryl, alkenyl, alkynyl, alkylcycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, and carbocyclic aralkyl, alkaryl, aralkenyl, and aralkynyl.

[0026] Such hydrocarbyl groups may also optionally be substituted by one or more substituents as defined herein. The following examples and preferences also apply to each of the hydrocarbyl substituents or hydrocarbyl - containing substituents referred to in the various definitions of the substituents of the compounds having the formulas described herein, unless the context indicates otherwise.

[0027] Preferred non - aromatic hydrocarbyl groups are saturated groups such as alkyl and cycloalkyl. Generally, and by way of example, a hydrocarbyl group may have up to one hundred carbon atoms, unless the context requires otherwise. Hydrocarbyl groups having from 1 to 60 carbon atoms are preferred, and those having 1 to 36 carbon atoms are more preferred. Within subsets of hydrocarbyl groups, specific examples are C 12-60 hydrocarbyl, C 12-30 hydrocarbyl, C 12-22 hydrocarbyl, C 1-10 hydrocarbyl, or C 1-4 hydrocarbyl, although any individual value, range, or combination of values selected from C 1 to C 60 hydrocarbyl is contemplated by the inventors as if specifically recited herein.

[0028] As indicated by the context in which it is used herein, the term "alkyl" is intended to include straight - chain, branched - chain, or cyclic hydrocarbon structures and combinations thereof. Lower alkyl refers to an alkyl group having from 1 to 6 carbon atoms. Examples of lower alkyl include methyl, ethyl, propyl, isopropyl, butyl, sec - butyl, and tert - butyl, pentyl, hexyl, or cyclohexyl, etc. Preferred alkyl groups include C 36or lower ones.

[0029] As used herein, the terms "alkoxy", "alkoxyalkyl", or "alkoxylated" refer to groups of from 1 to 20 carbon atoms in a straight-chain, branched-chain, or cyclic configuration, or combinations thereof, which are attached to the parent structure through an oxygen atom, or incorporated into the backbone of a moiety via an oxygen atom. Examples include methoxy, ethoxy, propoxy, isopropoxy, butoxy, cyclopropoxy, cyclohexyloxy, and the like.

[0030] Co - synergist . As used herein, a co-synergist refers to a specific class of compounds selected from the group consisting of: bisamides of fatty acids represented by the general formula _(IV);

[0031]

[0032] wherein R a is a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10.

[0033] The co-synergist (IV) can be, for example, N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO), N,N'-hexamethylenebis(stearamide), N,N'-hexamethylenebis(oleamide), N,N'-hexamethylenebis(erucamide), N,N'-hexamethylenebis(behenamide), N,N'-ethylenebis(erucamide), N,N'-ethylenebis(behenamide), or mixtures thereof. In some embodiments, the co-synergist is N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO), or mixtures thereof.

[0034] Co - activator . As described in US11,091,615 (incorporated herein by reference), a "co-agent" refers to any additive or mixture of additives that acts synergistically with a UV absorber, optionally in combination with a HALS, to effectively stabilize an organic material against the deleterious effects of UV rays, heat, and / or oxidation. In some embodiments, the co-agents in the stabilizer compositions described herein are selected from the group consisting of C 12 -C 60 alcohols; alkoxylated alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters, or their salts; sugar esters; alkoxylated fatty amides; alkoxylated natural oils; ethylene oxide / propylene oxide copolymers; and mixtures thereof.

[0035] The co-agent can be C 12 -C 60Alcohols, which can be monohydric, polyhydric or a mixture of both. When the co-surfactant is a monohydric alcohol, the monohydric alcohol can be C 12 -C 36 and preferably C 12 -C 22Alkanols, which are primary, secondary, straight-chain, branched-chain, or cyclic (i.e., cycloalkanols) alcohols. Such alcohols are well-known to those skilled in the art and are commercially available from multiple suppliers under various trade names. Generally suitable alkanols for the present invention include, but are not limited to, 1-dodecanol; 1-tridecanol; 1-tetradecanol; 1-pentadecanol; 1-hexadecanol; 1-heptadecanol; 1-octadecanol; 1-nonadecanol; 1-eicosanol; 1-docosanol; 1-tetracosanol; 1-hexacosanol; 1-octacosanol; 1-triacontanol; 2-methyl-1-undecanol; 2-propyl-1-nonanol; 2-butyl-1-octanol; 2-methyl-1-tridecanol; 2-ethyl-1-dodecanol; 2-propyl-1-undecanol; 2-butyl-1-decanol; 2-pentyl-1-nonanol; 2-hexyl-1-octanol; 2-methyl-1-pentadecanol; 2-ethyl-1-tetradecanol; 2-propyl-1-tridecanol; 2-butyl-1-dodecanol; 2-pentyl-1-undecanol; 2-hexyl-1-decanol; 2-heptyl-1-decanol; 2-hexyl-1-nonanol; 2-octyl-1-octanol; 2-methyl-1-heptadecanol; 2-ethyl-1-hexadecanol; 2-propyl-1-pentadecanol; 2-butyl-1-tetradecanol; 1-pentyl-1-tridecanol; 2-hexyl-1-dodecanol; 2-octyl-1-decanol; 2-nonyl-1-nonanol; 2-dodecanol; 3-dodecanol; 4-dodecanol; 5-dodecanol; 6-dodecanol; 2-tetradecanol; 3-tetradecanol; 4-tetradecanol; 5-tetradecanol; 6-tetradecanol; tetradecanol; 7-tetradecanol; 2-hexadecanol; 3-hexadecanol; 4-hexadecanol; 5-hexadecanol; 6-hexadecanol; 7-hexadecanol; 8-hexadecanol; 2-octadecanol; 3-octadecanol; 4-octadecanol; 5-octadecanol; 6-octadecanol; 7-octadecanol; 8-octadecanol; 9-octadecanol; 9-octadecanol-1; 2,4,6-trimethyl-1-heptanol; 2,4,6,8-tetramethyl-1-nonanol; 3,5,5-trimethyl-1-hexanol; 3,5,5,7,7-pentamethyl-1-octanol; 3-butyl-1-nonanol; 3-butyl-1-undecanol; 3-hexyl-1-undecanol; 3-hexyl-1-tridecanol; 3-octyl-1-tridecanol; 2-methyl-2-undecanol; 3-methyl-3-undecanol; 4-methyl-4-undecanol; 2-methyl-2-tridecanol; 3-methyl-3-tridecanol; 4-methyl-3-tridecanol; 4-methyl-4-tridecanol; 3-ethyl-3-decanol; 3-ethyl-3-dodecanol; 2,4,6,8-tetramethyl-2-nonanol; 2-methyl-3-undecanol; 2-methyl-4-undecanol; 4-methyl-2-undecanol; 5-methyl-2-undecanol; 4-ethyl-2-decanol; 4-ethyl-3-decanol; and mixtures thereof.

[0036] In the same or other embodiments, the co - surfactant may include an alkoxylated alcohol or its mono - alkyl ether. In certain embodiments, the co - surfactant may be an alkoxylated alcohol or its mono - alkyl ether according to formula (III):

[0037] R-(OCHR’CH 2 ) y -OR”(III)

[0038] wherein R is a hydrocarbon group having from 12 to 60 carbon atoms; R’ is selected from H or C 1 -C 4 alkyl; R” is selected from H or a hydrocarbon group having from 1 to 10 carbon atoms; and y is an integer from 1 to 100.

[0039] Thus, in certain embodiments, R of formula (III) may be an alkyl group having from 12 to 30 carbon atoms. In other embodiments, R may contain from 12 to 22 carbon atoms, and desirably from 12 to 18 carbons, or 12 to 15 carbons. Thus, in certain embodiments, or in the same embodiments as those previously described with respect to formula (III), R' may be methyl or ethyl. In still other embodiments, R’ may be H.

[0040] Thus, in certain embodiments, the stabilizer composition according to the present invention may comprise a co - surfactant that can be alkoxylated with one or more alcoholates. In some embodiments, the co - surfactant according to formula (III) may be ethoxylated. In other embodiments, the co - surfactant according to formula (III) may be propoxylated. In the same or other embodiments, the co - surfactant according to formula (III) may include a mixture of ethoxylated alcohol and propoxylated alcohol, or may be an alcohol that is both ethoxylated and propoxylated.

[0041] Although the degree of alkoxylation (i.e., the number of ethoxy and / or propoxy groups in the co - surfactant) may vary in the co - surfactant, the range of the degree of alkoxylation envisioned by the inventors for the co - surfactants described herein is from 1 to 100. In certain embodiments, the range of the degree of alkoxylation of the co - surfactant according to formula (III) given by “y” may be from 1 to 75. In other embodiments, the range of the degree of alkoxylation may be from 2 to 25, or from 2 to 12.

[0042] In any of the embodiments of the co - surfactant according to formula (III) discussed above, the co - surfactant may be an alcohol, such as when R” is H. In other embodiments, the co - surfactant may be a mono - alkyl ether derived from such an alcohol, such as when R” is a hydrocarbon group having from 1 to 10 carbon atoms. In one embodiment where the co - surfactant is a mono - alkyl ether according to formula (III), R” is methyl.

[0043] In certain embodiments, the co-surfactant can be selected from one or more of the following ethoxylated and / or propoxylated alcohols, where the alcohol is selected from docosanol; stearyl alcohol; oleyl alcohol; cetyl alcohol; isotridecanol; lauryl alcohol; C 12 -C 30 alcohol; C 16 / C 18 alcohol mixture; C 20 -C 50 alcohol; or monoalkyl ethers of these ethoxylated and / or propoxylated alcohols. In a specific embodiment, the co-surfactant is an ethoxylated and propoxylated C 12 -C 30 alcohol. In another specific embodiment, the co-surfactant can be a mixture of ethoxylated and propoxylated C 12 -C 15 alcohol having from 2 to 5 ethylene oxide groups and propylene oxide groups.

[0044] Although the alkoxylated alcohols or their monoalkyl ethers according to formula (III) of the present invention can be made by known methods that are already available to those of ordinary skill in the art, there is also a large number of such compounds that are currently commercially available. Such commercially available alkoxylated compounds include, but are not limited to, any of the alkoxylated alcohols that are commercially available or known under the trade name (available from Sigma Aldrich, St. Louis, MO); (available from Jeen Int’l Corp.); (available from Sasol Olefins & Surfactants, Hamburg, Germany); ethoxylates (available from Baker Hughes, Inc); (available from Clariant SE, Switzerland); and (available from Global Seven, Rockaway, NJ). Although these compounds can generally be in any form (i.e., liquid, solid, semi-solid, flakes, tablets), the solid or semi-solid form is preferred.

[0045] In certain embodiments, the co-surfactant can be selected from any one or more of the following: diethylene glycol octadecyl ether (available as S2); triethylene glycol octadecyl ether (available as (available as S3); 2-(dodecyloxy)ethanol (available as laureth2); polyoxyethylene (5) octadecyl ether (available as Steareth-5); polyoxyethylene (10) octadecyl ether (available as SA-10); polyoxyethylene (2) oleyl ether (available as 93); polyoxyethylene dodecyl ether (available as 22-4); polyoxyethylene (2.6) saturated straight-chain C 20 to C 50 synthetic alcohol (available as 420); C with 2 EO and 5 PO 12 -C 15 oxo alcohol (available as EP 2525); C with 5 EO and 2 PO 12 -C 15 oxo alcohol (available as EP 2552); or polyoxyethylene (4) oleyl ether (available as OL-4).

[0046] Fatty acid esters have a wide range of commercial applications, and their alkoxylated forms are also suitable for use as co-active agents in the stabilizer compositions according to the present invention. The term "ester" has its ordinary meaning as used throughout the specification and the claims and refers to a compound in which the hydroxy group of the reference compound is replaced by -OCO-alkyl. Any acid derived from fats by hydrolysis is suitable, but it must include at least one alcoholate. The fatty acid can be straight-chain, branched-chain or cyclic, and can be mono-unsaturated, poly-unsaturated or saturated.

[0047] In embodiments, the alkoxylated esters of fatty acids can include mono-esters or di-esters of (poly)ethylene glycol or (poly)propylene glycol. As used herein, the term "(poly)ethylene glycol" refers to "polyethylene glycol" as well as "ethylene glycol". The same applies to the term "(poly)propylene glycol". In certain embodiments, one or more ester moieties of (poly)ethylene glycol or (poly)propylene glycol are independently selected from hydrocarbon groups having from 12 to 30 carbon atoms. In a specific embodiment, the hydrocarbon group can be an alkyl group having from 12 to 18 carbon atoms.

[0048] Commercially available mono-esters or di-esters of (poly)ethylene glycol or (poly)propylene glycol include under the trade name Any one of those below (available from Lonza, Ltd., Switzerland). Thus, in various embodiments, the co - surfactant can be an ethoxylated and / or propoxylated ester of a fatty acid, and the ethoxylated and / or propoxylated ester is selected from one or more of the following: ethylene glycol monostearate, ethylene glycol distearate, diethylene glycol monostearate, diethylene glycol distearate, diethylene glycol monooleate, diethylene glycol monolaurate, polyethylene glycol monostearate, polyethylene glycol distearate, polyethylene glycol monooleate, polyethylene glycol dioleate, polyethylene glycol monoresinate, polyethylene glycol diresinate, polyethylene glycol monocaprylate / caprate, polyethylene glycol monolaurate, polyethylene glycol dilaurate, 2-(2 - hydroxyethoxy)ethyl dodecanoate; polyethylene glycol beeswax, mannitol monooleate, natural oil ethoxylates / propoxylates, castor oil acid ethoxylate; or pentaerythritol dioleate.

[0049] In other embodiments, the co - surfactant can be a sorbitan ester or its ethoxylate, which also shows synergistically acting with the UV stabilizer to provide improved stabilizing properties in organic materials stabilized with these compounds.

[0050] The preparation of sorbitan esters can be achieved by reacting sorbitol with the fatty acid under consideration to make the corresponding fatty acid ester according to techniques well - known to those skilled in the art and under conditions well - known to those skilled in the art. Sorbitan esters and their ethoxylates are also commercially available under different trade names from various suppliers. Sorbitan esters are available under their generally recognized chemical names from Sigma - Aldrich, St. Louis, Missouri, or under trade names from Protameen Chemicals, Totowa, NJ. Sorbitan ester ethoxylates are available in particular as (available from Sigma - Aldrich) or (available from Janssen Int'l Corp. ).

[0051] In certain embodiments, the co - surfactant can include but is not limited to one or more sorbitan esters, which are selected from sorbitan monolaurate; sorbitan monopalmitate; sorbitan monostearate; sorbitan monooleate; sorbitan monoresinate; sorbitan sesquioleate; or sorbitan tristearate. Sorbitan monostearate is a particularly suitable sorbitan ester used as the co - surfactant of the present invention in certain embodiments.

[0052] In other embodiments, the co - surfactant can include sorbitan ester ethoxylates. While those skilled in the art will recognize that there are many sorbitan ester ethoxylates suitable for use as co - surfactants with the stabilizer compositions according to the present invention, particularly suitable sorbitan ester ethoxylates include one or more selected from the following: polysorbate 20 (available as 20); polysorbate 21 (available as 21); polysorbate 40 (available as 40); polysorbate 60 (available as 60); polysorbate 61 (available as 61); polysorbate 80 (available as 80); or polysorbate 81 (available as 81).

[0053] Mono - and poly - glycerol esters and their ethoxylates are also suitable for use as co - surfactants with the stabilizer compositions of the present invention. In certain embodiments, the number of glycerol units can be up to and including 20. In other embodiments, the number of glycerol units can be up to and including 10. In the same or other embodiments, one or more ester moieties of the mono - glycerol ester or poly - glycerol ester can independently be selected from hydrocarbyl groups having from 12 to 30 carbon atoms. In a specific embodiment, the ester moiety can include C 12 -C 18 alkyl, which can also include mixtures of isomers of those alkyl groups.

[0054] Thus, in certain embodiments, the co - surfactant can be one or more mono - glycerol esters or poly - glycerol esters selected from the following: glyceryl monostearate; glyceryl distearate; glyceryl oleate; glyceryl triisostearate; diglyceryl monostearate; diglyceryl diisostearate; diglyceryl monooleate; triglyceryl monostearate; hexaglyceryl distearate; polyglyceryl - 10 monostearate; polyglyceryl - 10 monooleate; polyglycerol - 10 - dipalmitate; polyglycerol - 10 decaoleate; polyglycerol - 3 polyricinoleate; polyglycerol esters of vegetable - based fatty acids; polyglycerol - 4 caprate; polyglycerol - 3 caprate; polyglycerol - 4 isostearate; polyglycerol - 3 oleate; polyglycerol - 6 distearate; polyglyceryl - 9 stearate; or polyglycerol - 4 oleate. Such compounds are generally commercially available from various suppliers under different trade names, such as (from Lonza Ltd, Switzerland) or (from Croda Int’l Plc, UK).

[0055] The ethoxylated forms of the monoglycerides and polyglycerides described above are also useful as co-activators in the stabilizer compositions of the present invention. Thus, in certain embodiments, the co-activators include, but are not limited to, diglycerol distearate ethoxylate; glycerol stearate ethoxylate; glycerol oleate ethoxylate; glycerol laurate ethoxylate; glycerol cocoate ethoxylate; diglycerol distearate ethoxylate; and diglycerol laurate ethoxylate.

[0056] Other ethoxylated monoglycerides include ethoxylated castor oil or its hydrogenated form and are also suitable for use as co-activators in the stabilizer compositions according to the present invention. Such ethoxylated castor oil or ethoxylated hydrogenated castor oil includes those available under the trade names 5, 7, and 25 from Croda International PLC (UK). Those skilled in the art will appreciate that various natural oil ethoxylates may also be suitable for use as co-activators and may include, for example, those from: soybean oil; peanut oil; neem oil; and palm oil.

[0057] Sugar esters can also be used as co-activators in the stabilizer compositions described herein. The sugar can be a monosaccharide, disaccharide, or oligosaccharide, and the ester moiety is preferably derived from a fatty acid having from 12 to 24 carbon atoms. Representative monosaccharides include, but are not limited to, glucose, fructose, and galactose. Preferred disaccharides include, but are not limited to, sucrose, maltose, and lactose. While those skilled in the art will appreciate that there are many sugar esters of fatty acids that can be used as co-activators, particularly suitable compounds include, but are not limited to, sucrose stearate; sucrose distearate; sucrose polystearate; sucrose monopalmitate; sucrose laurate; and sucrose poly palmitate. One such sucrose stearate is commercially available under the trade name F-160 from Croda International PLC (UK).

[0058] In still further embodiments, the co-activator can be an alkoxylated fatty amine according to formula (V)

[0059] R 4 -NR 2 R 3 (V),

[0060] its esters or its salts, or

[0061] an alkoxylated fatty amide according to formula (VI)

[0062]

[0063] wherein R in formula (V) and formula (VI) 4 is independently selected from C8 -C 60 a hydrocarbyl group, optionally interrupted by one or more heteroatoms; and R in formula (V) and formula (VI) 2 and R 3 are each independently selected from H, C 1 -C 30 alkyl, or (-CH 2 CHR 5 O-)n-H, where R 5 is selected from H or methyl, and n is an integer from 1 to 100; and provided that at least one of R 2 or R 3 in formula (V) and formula (VI) is selected from (-CH 2 CHR 5 O-)n-H.

[0064] In some embodiments, R 4 in formula (V) and formula (VI) can be independently selected from alkyl groups having from 8 to 30 carbon atoms. In certain embodiments of the co - surfactant according to formula (V) or formula (VI), the alkyl group can contain from 12 to 22 carbon atoms. In the same or other embodiments, the alkyl group can be interrupted by one or more heteroatoms selected from N, O or S. In a specific embodiment, when the co - surfactant according to formula (V) or formula (VI) is interrupted, it is interrupted by one or more oxygen atoms.

[0065] As previously noted, when selected from (-CH 2 CHR 5 O-)n-H, for each of R 2 and / or R 3 , the range of ethoxylation degree contemplated by the co - surfactant according to formula (V) and formula (VI) is from 1 to 100, as provided by the value designated as "n". In certain embodiments, the range of ethoxylation degree of the co - surfactant according to formula (V) or formula (VI) can be from 1 to 75. In other embodiments, the range of ethoxylation degree can be from 2 to 25, or from 2 to 12. For all embodiments, the ethoxylation degree can be as the total between any one of R 2 or R 3 or as the total for a combination of co - surfactants having formula (V) or formula (VI). In a specific embodiment, the total degree of ethoxylation can be 20 (i.e., the total value of "n" among R 2 and / or R 3 in formula (V) or formula (VI) is 20).

[0066] Commercially available alkoxylated fatty amines include, but are not limited to, those sold under the trade name (Available from Air Products and Chemicals Inc., Allentown, PA); (Available from Akzo Nobel N.V., the Netherlands); and Any of the alkoxylated fatty amines (available from Clariant, Switzerland). Thus, in certain embodiments, the co - surfactant of the stabilizer composition according to the present invention can be an alkoxylated fatty amine according to formula (V) and can be selected from one or more of the ethoxylated and / or propoxylated forms of: stearylamine; oleylamine; tallow amine; hydrogenated tallow amine; cetylamine; decanoyl amine; or cocoamine. In a specific embodiment, oleylamine can be ethoxylated and propoxylated.

[0067] Any salt of the alkoxylated fatty amine according to formula (V) is also suitable as a co - surfactant. While those skilled in the art will recognize that any fatty acid salt of the alkoxylated fatty amine according to formula (V) will be suitable for use as the co - surfactant in the stabilizer composition according to the present invention, particularly advantageous salts include carboxylates. In certain embodiments, the carboxylate of the alkoxylated fatty amine according to formula (V) can be derived from a carboxylic acid moiety having from 2 to 30 carbon atoms. In a specific embodiment, the carboxylic acid moiety can have from 12 to 24 carbon atoms.

[0068] Commercially available alkoxylated fatty acid amides include, but are not limited to, those sold under the trade name (Available from Protameen Chemicals, Totowa, NJ); or (Available from Elementis Specialties, East Windsor, NJ). Thus, in some embodiments of the present invention, the co - surfactant of the stabilizer composition according to the present invention can be an alkoxylated fatty acid amide according to formula (V) and can be selected from one or more of the following: cocoamido monoethanolamine; cocoamido diethanolamine; lauramido diethanolamine; oleamido diethanolamine; oleamido monoethanolamine; or their ethoxylated and / or propoxylated forms.

[0069] In some cases, it may be desirable to further alkoxylate the fatty acid amide according to formula (VI). Thus, in some embodiments, the alkoxylated fatty acid amide according to formula (VI) can be further alkoxylated with from 1 to 50 ethylene oxide and / or propylene oxide groups.

[0070] Yet another class of co - agents suitable for use in the stabilizer compositions according to the present invention includes block copolymers of ethylene oxide / propylene oxide (EO / PO) monomers. In certain embodiments, the ratio of EO / PO monomers can be from 1:99 to 99:1. In specific embodiments, the ratio of EO / PO can be from 1:9 to 9:1. In the same or other embodiments, the weight - average molecular weight of such copolymers can be up to and including 15,000 Da, wherein the wt.% of oxyethylene is from 10 wt.% to 90 wt.% based on the total weight of the copolymer. In some embodiments, the weight - average molecular weight of the EO / PO block copolymer can be up to and including 10,000 Da. Commercially available forms of such EO - PO block copolymers include any of those under the trademark (available from BASF, Germany), including but not limited to L31; L81; L101; L62; L43; L35; and F38.

[0071] In some embodiments, the co - agent is absent from the stabilizer composition, the masterbatch concentrate, the stabilized polymer composition, and the stabilized article. As used herein, "absent" can mean that there is less than 0.1 wt.%, less than 0.01 wt.%, less than 0.001 wt.%, or less than 0.0001 wt.% of the co - agent. As used herein, "absent" can also mean that no co - agent has been intentionally added, or that no co - agent has been detected by analysis.

[0072] UV stabilizer .Regarding the UV stabilizer system of the stabilizer composition, the inventors have also unexpectedly found that o - hydroxyphenyltriazines are an effective class of triazines for use in combination with the co - synergist and optional co - agent of the stabilizer composition. O - hydroxyphenyltriazines are well - known in the art and in the field of stabilizer additive technology. They have been disclosed and treated in many references and patents, including U.S. Patent Nos. 6,051,164; and 6,843,939, the o - hydroxyphenyltriazine compounds of which are incorporated herein by reference. Particularly preferred o - hydroxyphenyltriazines include 2 - (2’ - hydroxyphenyl) - 1,3,5 - triazine compounds according to formula (I):

[0073]

[0074] wherein

[0075] R 34 and R 35 are the same or different and independently selected from

[0076] C 6 -C 10 aryl, wherein the C6 -C 10 The aryl is optionally substituted at from 1 to 3 substitutable positions by one or more groups selected from: OH, halogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, C 1-12 alkoxy ester, C 2-12 alkanoyl, or phenyl, wherein the phenyl is optionally substituted at from 1 to 3 substitutable positions by one or more groups selected from: hydroxy, halogen, C 1-12 alkyl, C 1-12 alkoxy, C 1-12 alkoxy ester, or C 2-12 alkanoyl;

[0077] Mono- or di-C 1 -C 12 hydrocarbyl-substituted amino;

[0078] C 2 -C 12 alkanoyl;

[0079] C 1 -C 12 alkyl;

[0080] C 1 -C 10 acyl; or

[0081] C 1 -C 10 alkoxy; and

[0082] R 36 is a substituent that is the same or different and independently selected from hydroxy, halogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, C 1 -C 12 alkoxy ester, C 2 -C 12 alkanoyl; phenyl; or C 1 -C 12 acyl.

[0083] Commercially available o-hydroxyphenyltriazines include, but are not limited to, those sold under the trade name UV-1164 (available from Cytec Industries Inc., Woodland Park, NJ); 1577FF or Those under 400 (available from BASF SE, Ludwigshafen, Germany). In certain embodiments, the o-hydroxyphenyltriazine compounds of the stabilizer composition include, but are not limited to, one or more of the following compounds:

[0084] 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine;

[0085] 2-(4,6-diphenyl-1,3,5-triazin-2-yl-)-5-((hexyl)oxy-phenol;

[0086] 4,6-bis-(2,4-dimethylphenyl)-2-(2,4-dihydroxyphenyl)-s-triazine;

[0087] 2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine;

[0088] 2,4-bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;

[0089] 2,4-bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(2,4-dimethylphenyl)-s-triazine;

[0090] 2,4-bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine;

[0091] 2,4-bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;

[0092] 2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;

[0093] 2,4-bis(4-biphenyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylenoxy]phenyl]-s-triazine;

[0094] 2,4-bis(4-biphenyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine;

[0095] 2-phenyl-4-[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)phenyl]-6-[2-hydroxy-4-(3-sec-pentyloxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0096] 2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(-3-benzyloxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0097] 2,4-bis(2-hydroxy-4-n-butoxyphenyl)-6-(2,4-di-n-butoxyphenyl)-s-triazine;

[0098] 2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropoxy)-5-α-cumylphenyl]-s-triazine;

[0099] Methylene bis-{2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0100] Mixture of methylene-bridged dimers bridged in a 5:4:1 ratio at the 3:5', 5:5' and 3:3’ positions;

[0101] 2,4,6-tris(2-hydroxy-4-isooctyloxycarbonyliso-isopropoxyphenyl)-s-triazine;

[0102] 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine;

[0103] 2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine;

[0104] 2-(2,4,6-trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0105] 2,4,6-tris[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)-phenyl]-s-triazine;

[0106] Mixture of 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazine and 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine;

[0107] 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine; or

[0108] 4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine.

[0109] Other UVAs suitable for use with the co - agents described herein include one or more of o - hydroxybenzophenones, o - hydroxyphenylbenzotriazoles, or benzoxazinone compounds. In some embodiments, the UVA component of the stabilizer composition individually comprises o - hydroxytriazine, o - hydroxybenzophenone, o - hydroxyphenylbenzotriazole, or benzoxazinone. In other embodiments, the UVA component comprises a combination of two or more of such UVA compounds. o - Hydroxybenzophenones, o - hydroxybenzotriazoles, oxanilides, cyanoacrylates, and benzoxazinones are also well - known to those skilled in the art of stabilizer additive technology. Their suitability for use as components of stabilizer compositions has been previously disclosed and addressed in at least U.S. Patent Nos. 2,976,259; 3,049,443; 3,399,169; 4,322,455; 4,446,262; 5,264,539; 6,051,164; 6,677,392; and 6,774,232, as well as U.S. Publication No. 2006 / 0052491, the o - hydroxybenzophenones, o - hydroxyphenylbenzotriazoles, and benzoxazinones of which are incorporated herein by reference as being suitable for use with the stabilizer compositions of the present invention.

[0110] Some other non - limiting examples of o - hydroxybenzophenones for use with the stabilizer compositions contemplated herein include any one or more of the following: 2 - hydroxy - 4 - methoxybenzophenone (commercially available from Cytec Industries as UV - 9); 2,2’ - dihydroxy - 4 - methoxybenzophenone (commercially available from Cytec Industries as UV - 24); 2 - hydroxy - 4 - octoxybenzophenone (commercially available from Cytec Industries as UV-531 (commercially available); 2'-dihydroxy-4,4'-dimethoxybenzophenone; 2,2'-dihydroxybenzophenone; 2,2',4,4'-tetrahydroxybenzophenone; 2,2'-dihydroxy-4,4'-dimethoxybenzophenone; 2,2'-dihydroxy-4,4'-diethoxybenzophenone; 2,2'-dihydroxy-4,4'-dipropoxybenzophenone; 2,2'-dihydroxy-4,4'-dibutoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-ethoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-butoxybenzophenone; 2,3'-dihydroxy-4,4'-dimethoxybenzophenone; 2,3'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4,4',6'-tributoxybenzophenone; 2-hydroxy-4-butoxy-4',5'-dimethoxybenzophenone; 2-hydroxy-4-ethoxy-2',4'-dibutylbenzophenone; 2-hydroxy-4-propoxy-4',6'-dichlorobenzophenone; 2-hydroxy-4-propoxy-4',6'-dibromobenzophenone; 2,4-dihydroxybenzophenone; 2-hydroxy-4-ethoxybenzophenone; 2-hydroxy-4-propoxybenzophenone; 2-hydroxy-4-butoxybenzophenone; 2-hydroxy-4-methoxy-4'-methylbenzophenone; 2-hydroxy-4-methoxy-4'-ethylbenzophenone; 2-hydroxy-4-methoxy-4'-propylbenzophenone; 2-hydroxy-4-methoxy-4'-butylbenzophenone; 2-hydroxy-4-methoxy-4'-tert-butylbenzophenone; 2-hydroxy-4-methoxy-4'-chlorobenzophenone; 2-hydroxy-4-methoxy-2'-chlorobenzophenone; 2-hydroxy-4-methoxy-4'-bromobenzophenone; 2-hydroxy-4,4'-dimethoxybenzophenone; 2-hydroxy-4,4'-dimethoxy-3-methylbenzophenone; 2-hydroxy-4,4'-dimethoxy-2'-ethylbenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-methylbenzophenone; 2-hydroxy-4-ethoxy-4'-ethylbenzophenone; 2-hydroxy-4-ethoxy-4'-propylbenzophenone; 2-hydroxy-4-ethoxy-4'-butylbenzophenone; 2-hydroxy-4-ethoxy-4'-methoxybenzophenone; 2-hydroxy-4,4'-diethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-propoxybenzophenone; 2-hydroxy-4-ethoxy-4'-butoxybenzophenone; 2-hydroxy-4-ethoxy-4'-chlorobenzophenone;or 2-hydroxy-4-ethoxy-4'-bromobenzophenone;

[0111] Some other non-limiting examples of o-hydroxyphenylbenzotriazoles useful in the UVA component of the stabilizer compositions described herein include any one or more of the following: those commercially available from Cytec Industries Inc. (e.g., UV-5411), or 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole; 2-(2'-hydroxy-5'-tert-butylphenyl)benzotriazole; 2-(2'-hydroxy-3'-methyl-5'-tert-butylphenyl)-benzotriazole; 2-(2'-hydroxy-5'-cyclohexylphenyl)-benzotriazole; 2-(2'-hydroxy-3',5'-dimethylphenyl)-benzotriazole; 2-(2'-hydroxy-5'-tert-butylphenyl)-5-chloro-benzotriazole; 2-(2'-hydroxy-5-tert-octylphenyl)-2H-benzotriazole; 2-(2'-hydroxy-5-octylphenyl)-2H-benzotriazole; 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole (from Cytec Industries Inc. as UV-2337 (commercially available); 2-(3',5'-bis(α,α-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole; 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; transesterification product of 2-[3'-tert-butyl-5'-(2-methoxycarbonylethyl)-2'-hydroxyphenyl]-2H-benzotriazole with polyethylene glycol 300; 2-[2'-hydroxy-3'-(α,α-dimethylbenzyl)-5'-(1,1,3,3-tetramethylbutyl)phenyl]benzotriazole; 5-trifluoromethyl-2-(2-hydroxy-3-α-cumyl-5-tert-octylphenyl)-2H-benzotriazole; 2-(2'-hydroxy-5'-(2-hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy-5'-(2-methacryloyloxyethyl)phenyl)benzotriazole; 2-(3'-tert-butyl-5'-methyl-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazole; 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole; 2-(5'-tert-octyl-2'-hydroxyphenyl)benzotriazole; 2-(3'-dodecyl-5'-methyl-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert-butyl-5'-(2-octyloxycarbonylethyl)-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(5'-methyl-2'-hydroxyphenyl)benzotriazole; 2-(5'-tert-butyl-2'-hydroxyphenyl)benzotriazole; or 2-(2'-hydroxy-3'-di-tert-butylphenyl)benzotriazole.

[0112] Non-limiting examples of benzoxazinones useful in the UVA portion of the stabilizer compositions described herein include any one or more selected from the following: 2-methyl-3,1-benzoxazin-4-one; 2-butyl-3,1-benzoxazin-4-one; 2-phenyl-3,1-benzoxazin-4-one; 2-(1- or 2-naphthyl)-3,1-benzoxazin-4-one; 2-(4-biphenylyl)-3,1-benzoxazin-4-one; 2-p-nitrophenyl-3,1-benzoxazin-4-one; 2-m-nitrophenyl-3,1-benzoxazin-4-one; 2-p-benzoylphenyl-3,1-benzoxazin-4-one; 2-p-methoxyphenyl-3,1-benzoxazin-4-one; 2-O-methoxyphenyl-3,1-benzoxazin-4-one; 2-cyclohexyl-3,1-benzoxazin-4-one; 2-p-(or m-)phthalimidophenyl-3,1-benzoxazin-4-one; N-phenyl-4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-benzoyl-4-(3,1-benzoxazin-4-one-2-yl)aniline; N-benzoyl-N-methyl-4-(3,1-benzoxazin-4-one-2-yl)-aniline; 2-[p-(N-phenylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2-[p-(N-phenyl N-methylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2,2'-bis(3,1-benzoxazin-4-one); 2,2'-ethylenebis(3,1-benzoxazin-4-one); 2,2'-tetramethylenebis(3,1-benzoxazin-4-one); 2,2'-hexamethylenebis(3,1-benzoxazin-4-one); 2,2'-decamethylenebis(3,1-benzoxazin-4-one); 2,2'-p-phenylenebis(3,1-benzoxazin-4-one); 2,2'-m-phenylenebis(3,1-benzoxazin-4-one); 2,2'-(4,4'-diphenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2,6- or 1,5-naphthalene)bis(3,1-benzoxazin-4-one); 2,2'-(2-methyl-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-nitro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-chloro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(1,4-cyclohexylene)bis(3,1-benzoxazin-4-one); N-p-(3,1-benzoxazin-4-one-2-yl)phenyl; 4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-p-(3,1-benzoxazin-4-one-2-yl)benzoyl; 4-(3,1-benzoxazin-4-one-2-yl)aniline; 1,3,5-tris(3,1-benzoxazin-4-one-2-yl)benzene;1,3,5-tris(3,1-benzoxazin-4-one-2-yl)naphthalene; or 2,4,6-tris(3,1-benzoxazin-4-one-2-yl)naphthalene;

[0113] When exposed to UV light, the HALS compound scavenges free radicals formed in the polymeric material and is more effective than when certain UVAs are used alone. The benefits conferred by various HALS compounds in combination with UVAs have been demonstrated in at least U.S. Patent Nos. 6,051,164 and 6,843,939, the teachings of which are incorporated herein by reference. Accordingly, in certain embodiments, the stabilizer compositions described herein may further comprise a stabilizing amount of one or more HALS compounds comprising a functional group according to formula (II):

[0114]

[0115] wherein

[0116] R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy;

[0117] R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and

[0118] R 29 , R 30 , R 32 , and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form a C 5 -C 10 cycloalkyl; or

[0119] a functional group according to formula (IIa):

[0120]

[0121] wherein

[0122] m is an integer from 1 to 2;

[0123] R 39Selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and

[0124] G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl.

[0125] Exemplary HALS compounds contemplated for use as components of the stabilizer compositions described herein may include one or more of the following: those commercially available from Cytec Industries, such as a mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine (e.g., (UV-3853), or bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; 2,2,6,6-tetramethylpiperidin-4-yl stearate; 2,2,6,6-tetramethylpiperidin-4-yl laurate; 1,2,2,6,6-pentamethylpiperidin-4-yl stearate; 1,2,2,6,6-pentamethylpiperidin-4-yl laurate; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 4-benzoyl-2,2,6,6-tetramethylpiperidine; 4-stearyloxy-2,2,6,6-tetramethylpiperidine; bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl) malonate; 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) succinate; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine (commercially available from Cytec Industries as UV-3346); methylated condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine (from Cytec Industries as UV-3529 (commercially available); condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; condensate of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; 3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; mixture of 4-hexadecyloxy- and 4-stearyloxy-1,2,2,6,6-pentamethylpiperidine; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; condensate of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; 2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane; oxo-piperazinyl-triazine; reaction product of 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane and epichlorohydrin; tetra(2,2,6,6-tetramethyl-4-piperidyl) butane-1,2,3,4-tetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, tetra(1,2,2,6,6-pentamethyl-4-piperidyl) ester; 1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidyl tridecyl ester; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidyl tridecyl ester; polymer of 1,2,3,4-butanetetracarboxylic acid with 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diol, 1,2,2,6,6-pentamethyl-4-piperidyl ester; 1,2,3,4-butanetetracarboxylic acid, with 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.Polymer of 5-undecane-3,9-diol, 2,2,6,6-tetramethyl-4-piperidyl ester; bis(1-undecyloxy-2,2,6,6-tetramethylpiperidin-4-yl) carbonate; 1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperidinol; 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine; 1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1-yloxy)-2-octadecanoyloxy-2-methylpropane; 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol; reaction product of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol and dimethyl succinate; 2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one; ester of 2,2,6,6-tetramethyl-4-piperidinol and higher fatty acid; 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione; 1H-pyrrole-2,5-dione, 1-octadecyl-, polymer with (1-methylethenyl)benzene and 1-(2,2,6,6-tetramethyl-4-piperidyl)-1H-pyrrole-2,5-dione; piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-; piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-; 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5] Reaction products of decane and epichlorohydrin; condensates of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; condensates of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensates of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; condensates of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; condensates of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine; malonic acid, [(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidyl) ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, 1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4-piperidyl ester; N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N'-dodecyl oxamide; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidyl): 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidyl); condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; 1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidyl tridecyl ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidyl tridecyl ester; tetra(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 2,2,4,4-tetramethyl-21-oxo-7-oxa-3.Mixture of 20-diazaspiro(5.1.11.2)heneicosane-20-propionic acid dodecyl ester and 2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazaspiro(5.1.11.2)heneicosane-20-propionic acid tetradecyl ester; 1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexazapentaleno[def]fluorene-4,8-dione, hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-; polymethyl[propyl-3-oxy(2',2',6',6'-tetramethyl-4,4'-piperidinyl)]siloxane; polymethyl[propyl-3-oxy(1',2',2',6',6'-pentamethyl-4,4'-piperidinyl)]siloxane; copolymer of methyl methacrylate with ethyl acrylate and 2,2,6,6-tetramethylpiperidin-4-yl acrylate; mixed C. 20 to C 24Copolymer of α-olefin and (2,2,6,6-tetramethylpiperidin-4-yl)succinimide; Polymer of 1,2,3,4-butanetetracarboxylic acid and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 1,2,2,6,6-pentamethyl-4-piperidyl ester; Polymer of 1,2,3,4-butanetetracarboxylic acid and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 2,2,6,6-tetramethyl-4-piperidyl ester copolymer; 1,3-Benzenedicarboxamide, N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl); 1,1'-(1,10-Dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine); Ethanedicarboxamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N'-dodecyl; Formamide, N,N'-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl)]; D-Glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidylidene)-; 2,2,4,4-Tetramethyl-7-oxa-3,20-diaza-21-oxo-dispiro[5.1.11.2]heneicosane; Propanamide, 2-methyl-N-(2,2,6,6-tetramethyl-4-piperidyl)-2-[(2,2,6,6-tetramethyl-4-piperidyl)amino]-; 7-Oxa-3,20-diazadispiro[5.1.11.2]Heneicosanoic acid, 20-carboxy-2,2,4,4-tetramethyl-21-oxo-, dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-β-alanine dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N'-aminoxalamide; Propanamide, N-(2,2,6,6-tetramethyl-4-piperidyl)-3-[(2,2,6,6-tetramethyl-4-piperidyl)amino]-; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; Bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; Tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,1'-(1,2-Ethanediyl)bis(3,3,5,5-tetramethylpiperazinone); 4-Benzoyl-2,2,6,6-tetramethylpiperidine; 4-Stearyloxy-2,2,6,6-tetramethylpiperidine; Bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate; 3-N-Octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) sebacate; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) succinate; 8-Acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; 3-Dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 2-Undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane; 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidyl) and 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidyl); N. 1 -(β-Hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one; N1 -tert-octyl-3,3,5,5-tetramethyl-diazepan-2-one; N 1 -tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepan-2-one; N 1 -tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one; trans-1,2-cyclohexane-bis-(N 1 -5,5-dimethyl-3,3-pentamethylene-2-piperazinone); trans-1,2-cyclohexane-bis-(N 1 -3,3,5,5-dispiropentamethylene-2-piperazinone); N 1 -isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone; N 1 -isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone; N 1 -isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone; trans-1,2-cyclohexane-bis-N 1 -(dimethyl-3,3-pentamethylene-2-piperazinone); N 1 -octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diaza -2-one; N 1 -octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diaza -2-one; XT 200 (available from BASF Corporation); or NOR 371 (available from BASF Corporation).

[0126] It is specifically contemplated that the UVA portion of the stabilizer compositions as described herein includes, in various embodiments, a combination of one or more o-hydroxyphenyltriazines and one or more HALS compounds. In such embodiments, the weight ratio of one or more HALS compounds to one or more triazine compounds can be from 1:5 to 30:1, and preferably from 3:1 to 20:1. In some embodiments, it may be advantageous to replace the o-hydroxyphenyltriazine in the UVA portion of the stabilizer composition with an o-hydroxybenzophenone compound, an o-hydroxyphenylbenzotriazole compound, an oxanilide, a cyanoacrylate, a benzoxazinone compound, and mixtures thereof in various suitable ratios in combination with the HALS compound to achieve the desired performance characteristics of the organic material to be stabilized.

[0127] Similarly, in some embodiments, a stabilizer composition as described heretofore can comprise any one or more additional classes of conventional co-stabilizers, which co-stabilizers include, but are not limited to, hindered benzoates, thioesters, hydroxylamines, antioxidants, hindered phenols, phosphites, phosphonites, benzofuranones, or nitrones. One or more conventional co-additives known to those skilled in the art can also be included, such as, but not limited to, nucleating agents, fillers, metal stearates, metal oxides, reinforcing agents, plasticizers, lubricants, rheology modifiers, catalysts, leveling agents, optical brighteners, antistatic agents, blowing agents, flame retardants, dyes, or pigments. Such conventional co-stabilizers and co-additives are well known to those skilled in the art and can include, for example, any of those described at least in U.S. Patent Nos. 7,642,320, 8,207,070, and 11,267,951.

[0128] Suitable hindered benzoates or benzamides for use with the UVA portion of the stabilizer composition include those according to formula (VII):

[0129]

[0130] wherein

[0131] R 21 and R 22 are each independently selected from C 1-12 alkyl;

[0132] T is selected from O or NR 24 , where R 24 is H or C 1-30 hydrocarbyl; and

[0133] R 23 is H or C 1-30 hydrocarbyl.

[0134] Preferred hindered benzoates can include any one or more of the following: those commercially available from Cytec Industries, such as cetyl 3,5-di-tert-butyl-4-hydroxybenzoate (e.g., UV-2908), or 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl 3,5-di-tert-butyl-4-hydroxybenzoate; octyl 3,5-di-tert-butyl-4-hydroxybenzoate; decyl 3,5-di-tert-butyl-4-hydroxybenzoate; dodecyl 3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl 3,5-di-tert-butyl-4-hydroxybenzoate; behenyl 3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate; or butyl 3-[3-tert-butyl-4-(3,5-di-tert-butyl-4-hydroxybenzoyloxy)phenyl]propionate.

[0135] Suitable thioesters, hydroxylamines, antioxidants, hindered phenols, phosphites, phosphonites, benzofuranones, nitrones and co-additives include any one of those disclosed in U.S. Publication Nos. 2004 / 0152807; 2009 / 0085252; 2012 / 0146257; and 2013 / 0145962; which are hereby incorporated by reference in their entirety or are known to those skilled in the art.

[0136] Preferred hydroxylamines include, but are not limited to, any one or more of N,N-dialkylhydroxylamines selected from the following: N,N-dibenzylhydroxylamine; N,N-diethylhydroxylamine; N,N-dioctylhydroxylamine; N,N-didodecylhydroxylamine; N,N-bis(dodecyl)hydroxylamine; N,N-bis(tetradecyl)hydroxylamine; N,N-bis(hexadecyl)hydroxylamine; N,N-bis(octadecyl)hydroxylamine; N-hexadecyl-N-tetradecylhydroxylamine; N-hexadecyl-N-heptadecylhydroxylamine; N-hexadecyl-N-octadecylhydroxylamine; N-heptadecyl-N-octadecylhydroxylamine; and N,N-di(hydrogenated tallow)hydroxylamine.

[0137] The weight ratio of the combined co-synergist (IV) and co-activator (when present) to the ultraviolet absorber (UVA) can vary depending on the components within the UV stabilizer portion, the type of material to be stabilized, and / or the end use of the stabilized material. Generally, the weight ratio of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) can be from 200:1 to 1:50; 100:1 to 1:40; or 50:1 to 1:30. In certain embodiments, the weight ratio of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) can be 50:1 to 1:30. In other embodiments, the weight ratio of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) can be 40:1 to 1:10; or from 20:1 to 1:5.

[0138] Similarly, generally, the weight ratio of co - synergist (IV) to ultraviolet absorber (UVA) can be from 200:1 to 1:50; 100:1 to 1:40; or 50:1 to 1:30. In certain embodiments, the weight ratio of co - synergist (IV) to ultraviolet absorber (UVA) can be 50:1 to 1:30. In other embodiments, the weight ratio of co - synergist (IV) to ultraviolet absorber (UVA) can be 40:1 to 1:10; or from 20:1 to 1:5.

[0139] The weight ratio of the co - synergist of the stabilizer composition to the UVA + HALS portion can vary depending on the components within the UV stabilizer portion, the type of material to be stabilized, and / or the end - use of the stabilized material. Generally, the ratio of the co - synergist to the combined UVA + HALS can be present in a weight ratio from 1:50 to 50:1. In certain embodiments, the weight ratio of the co - synergist of the stabilizer composition to the combined UVA + HALS can be from 1:20 to 50:1. In other embodiments, the ratio of the co - synergist to the combined UVA + HALS portion can be from 1:10 to 40:1; or from 1:5 to 20:1.

[0140] Similarly, generally, the ratio of the combined co - synergist (IV) and co - activator to the combined UVA + HALS can be present in a weight ratio from 1:50 to 50:1. In certain embodiments, the weight ratio of the combined co - synergist (IV) and co - activator of the stabilizer composition to the combined UVA + HALS can be from 1:20 to 50:1. In other embodiments, the ratio of the combined co - synergist (IV) and co - activator to the combined UVA + HALS portion can be from 1:10 to 40:1; or from 1:5 to 20:1.

[0141] The stabilized polymer composition comprises an organic material to be stabilized and any of the stabilizer compositions described herein. In some embodiments, the stabilizer composition, optionally added as a masterbatch concentrate, can be present in the stabilized polymer composition or the stabilized article in an amount from 0.02 wt.% to 20 wt.% based on the total weight of the stabilized polymer composition or the stabilized article or from 0.05 wt.% to 10 wt.% based on the total weight of the stabilized polymer composition or the stabilized article. In some embodiments, the final concentration of the co - synergist or co - activator in the stabilized polymer composition or the stabilized article can be from 0.01 wt.% to 2 wt.%; from 0.01 wt.% to 1 wt.%; or from 0.05 wt.% to 0.50 wt.%, based on the total weight of the stabilized polymer composition or the stabilized article.

[0142] Masterbatch concentrate. With respect to the stabilizer compositions of the present invention mentioned herein as "neat" compositions (i.e., undiluted or unmixed with other substances), they contain a stabilizing amount of co - synergist; optionally a stabilizing amount of co - activator; a stabilizing amount of an ultraviolet absorber selected from o - hydroxyphenyltriazines, o - hydroxybenzophenones, benzoxazinones, optionally o - hydroxyphenylbenzotriazoles, and combinations thereof; and a stabilizing amount of a hindered amine light stabilizer, which may optionally include other UV stabilizers, co - stabilizers, and / or co - additives. Masterbatch concentrates are also disclosed, which contain any of the stabilizer compositions described herein and at least one organic material that is the same as or compatible with the organic material to be stabilized. In this context, the organic material that is the same as or compatible with the organic material to be stabilized serves as a convenient carrier vehicle for the stabilizer compositions described herein, and then this organic material is blended with the organic material to be stabilized. Although the amount of the stabilizer composition present as part of the total masterbatch concentrate will vary based on, for example, the type of material to be stabilized and / or its end - use application, in some embodiments, the stabilizer composition will be present in an amount from 10 wt.% to 90 wt.%, based on the total weight of the masterbatch concentrate. In other embodiments, the stabilizer composition may be present in an amount from 30 wt.% to 80 wt.%; or from 40 wt.% to 75 wt.%, based on the total weight of the masterbatch concentrate.

[0143] Kit . Kits having a stabilizer composition as described herein in one or more containers are also disclosed. The kit may include in a single container or multiple containers any of the stabilizer compositions, masterbatch concentrates, materials to be stabilized (e.g., polymer compositions such as polyolefins), and optionally one or more other co - stabilizers and / or co - additives disclosed herein.

[0144] For example, one or more components of a stabilizer composition as described herein (e.g., UVA + HALS + co - synergist; UVA + HALS + co - synergist + co - activator) may be present in a first container, and the kit may optionally include one or more other components of the stabilizer composition and / or the material to be stabilized in a second or additional container. The one or more containers may be placed within a package, and the package may optionally include instructions for implementation or mixing in the form of a label on the package or a website address, or in the form of an insert included in the package of the kit. The kit may also include additional components or other means for implementing or mixing these components, as well as solvents or other means for formulation.

[0145] Method. The stabilizer composition can be easily combined with the organic material to be stabilized, or vice versa, by any suitable method known to those skilled in the art. As used herein, the terms "combined" or "combining" with respect to the stabilizer composition and the organic material to be stabilized include all manners and / or techniques known to those skilled in the art for intermixing, blending, integrating, mixing, or compounding two or more substances. In certain embodiments, the components of the stabilizer composition can be combined with the material to be stabilized by at least one technique selected from extrusion, granulation, milling, and molding. In other embodiments, the combination can be carried out by at least one of melting, dissolving in a solvent, direct mixing, and dry mixing.

[0146] Combining the stabilizer composition and optional other co-stabilizers and / or co-additives into the organic material to be stabilized can be carried out, for example, by dry blending in powder form, or by wet mixing in the form of a solution, dispersion, or suspension (e.g., in an inert solvent, water, or oil). Such stabilizer compositions are preferably non-aqueous. Combining the co-synergists and co-activators and UV stabilizers for the stabilizer composition and optional additional co-stabilizers and / or co-additives into the organic material to be stabilized can be carried out, for example, before or after molding, or also by applying the dissolved or dispersed stabilizer mixture to the organic material, with or without subsequent evaporation of the solvent or suspension / dispersant. The stabilizer composition, masterbatch concentrate, and optional other co-stabilizers and / or co-additives can be directly added to a processing apparatus (e.g., an extruder, a Banbury mixer, a kneader, etc.) together with the organic material to be stabilized as a dry mixture or powder, as a solution, as a dispersion or suspension, or as a melt.

[0147] For example, before, during, or just after the polymerization of the corresponding monomers, or before crosslinking, the individual components of the stabilizer composition and optional other co-stabilizers and / or co-additives can also be combined with an organic material such as a polymer. The stabilizer composition can be combined into the organic material to be stabilized in pure form (i.e., pure and directly into the resin), and can also be encapsulated in a wax, oil, or polymer compatible with the organic material to be stabilized.

[0148] It is also possible to pre-blend (i.e., mix together) the individual components of the stabilizer composition and optionally other co-stabilizers and / or co-additives simply for addition to the organic material to be stabilized. Solutions, dispersions or suspensions of the individual components of the stabilizer composition and optionally other co-stabilizers and / or co-additives can be sprayed onto the organic material to be stabilized. Solutions, dispersions or suspensions of the individual components of the stabilizer composition can also be used to dilute co-stabilizers and / or co-additives or their melts so that they can be sprayed together onto the material to be stabilized. During the deactivation of polymerization catalysts, mixing by spraying in the presence of water can be particularly advantageous since the evolved vapors can be used to deactivate the catalyst. In the case of spherical polymerized polymers, mixing the individual components of the stabilizer composition and optionally other co-stabilizers and / or co-additives by spraying can be particularly advantageous.

[0149] Also disclosed are methods for forming stabilized articles, which include combining any of the stabilizer compositions or their masterbatch concentrates disclosed herein, and optionally one or more other co-stabilizers and / or co-additives, with the organic material to be stabilized to form a stabilized polymer composition; and shaping the stabilized polymer composition into a stabilized article, thereby forming a stabilized article. Accordingly, also provided are stabilized articles made from the organic material to be stabilized and any of the stabilizer compositions or masterbatch concentrates described herein.

[0150] Also disclosed are methods for protecting organic materials from the deleterious effects of UV radiation and heat, which include combining the organic material with any of the stabilizer compositions or their masterbatch concentrates disclosed herein, and optionally one or more other co-stabilizers and / or co-additives, with the organic material to be stabilized. These methods include adding any of the stabilizer compositions in a stabilizing amount as described herein to the organic material to be stabilized before, during or after processing. The stabilizer composition can be added to the organic material to be stabilized as a pure composition or as a masterbatch concentrate as described herein.

[0151] Also described are methods for forming stabilized articles by adding any of the stabilizer compositions or their masterbatch concentrates in a stabilizing amount as described herein to the organic material to be stabilized before, during or after processing; and shaping the stabilized polymer composition into a stabilized article.

[0152] The stabilizer composition, masterbatch concentrate, stabilized polymer composition, and method are suitable for use with any industrial polymer molding method and can be readily adapted to any industrial polymer molding method, including but not limited to injection molding, rotational molding, blow molding, roll-to-roll molding, metal injection molding, compression molding, transfer molding, dip molding, gas-assisted molding, insert injection molding, micro molding, reaction injection molding, two shot injection molding, and any variations or combinations thereof.

[0153] In certain embodiments, the stabilizer composition may be present in the stabilized polymer composition or stabilized article in an amount ranging from 0.01 wt.% to 15.0 wt.%, based on the total weight of the stabilized polymer composition (i.e., any value from 0.01 wt.% to 15.0 wt.%, including any value therebetween such as 0.01 wt.%; 0.02 wt.%; 0.03 wt.%; 0.04 wt.%; 0.05 wt.%; 0.075 wt.%; 0.10 wt.%; 0.15 wt.%; 0.20 wt.%; 0.25 wt.%; 0.30 wt.%; 0.35 wt.%; 0.50 wt.%; 0.75 wt.%; 1.0 wt.%; 1.5 wt.%; 2.0 wt.%; 2.5 wt.%; 3.0 wt.%; 3.5 wt.%; 5.0 wt.%; 7.5 wt.%; 10.0 wt.%; 12.0 wt.%; 14.0 wt.%; or 15.0 wt.%). The amount depends on the stabilizer composition or masterbatch concentrate added, the properties of the material to be stabilized, and the end-use application.

[0154] The stabilized article containing the organic material to be stabilized comprises:

[0155] a) A stabilizer composition in an amount from 0.01 wt.% to 15 wt.%, based on the total weight of the stabilized article, the stabilizer composition comprising:

[0156] i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o-hydroxyphenyltriazine compounds; o-hydroxybenzophenone compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof;

[0157] ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0158]

[0159] wherein R 31 is selected from: hydrogen; OH; C 1 -C20 Hydrocarbyl; -CH 2 CN; C 1 -C 12 Acyl; or C 1 -C 18 Alkoxy; R 38 Selected from: hydrogen; or C 1 -C 8 Hydrocarbyl; and R 29 、R 30 、R 32 and R 33 Each independently selected from C 1 -C 20 Hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 Together with the carbon to which they are attached form C 5 -C 10 Cycloalkyl; or

[0160] A functional group according to formula (IIa):

[0161]

[0162] Wherein

[0163] m is an integer from 1 to 2;

[0164] R 39 Selected from: hydrogen; OH; C 1 -C 20 Hydrocarbyl; -CH 2 CN; C 1 -C 12 Acyl; or C 1 -C 18 Alkoxy; and

[0165] G 1 -G 4 Each independently selected from C 1 -C 20 Hydrocarbyl; or

[0166] A mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0167] iii) A stabilizing amount of a co - synergist selected from the group consisting of bis - amides of fatty acids having the general formula (IV):

[0168]

[0169] Wherein R ais a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and,

[0170] iv) a stabilizing amount of a co - surfactant selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their mono - alkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof;

[0171] wherein the total weight of the co - synergist (IV) and the co - surfactant is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and

[0172] the ratio of the co - synergist (IV) to the co - surfactant is from 1:99 to 99:1;

[0173] or

[0174] b) a masterbatch concentrate as disclosed herein;

[0175] such that the final concentration of the co - synergist (IV) and the co - surfactant in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0176] The stabilized article may further comprise an organic material to be stabilized; and

[0177] a) a stabilizer composition from 0.01 wt.% to 15 wt.% based on the total weight of the stabilized article, the stabilizer composition comprising:

[0178] i) a stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds; o - hydroxybenzophenone compounds; o - hydroxyphenylbenzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof;

[0179] ii) a stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0180]

[0181] wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12Acyl; or C 1 -C 18 Alkoxy; R 38 Selected from: hydrogen; or C 1 -C 8 Hydrocarbyl; and R 29 、R 30 、R 32 and R 33 Each independently selected from C 1 -C 20 Hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 Together with the carbon to which they are attached form C 5 -C 10 Cycloalkyl; or

[0182] Functional group according to formula (IIa):

[0183]

[0184] Wherein

[0185] m is an integer from 1 to 2;

[0186] R 39 Selected from: hydrogen; OH; C 1 -C 20 Hydrocarbyl; -CH 2 CN; C 1 -C 12 Acyl; or C 1 -C 18 Alkoxy; and

[0187] G 1 -G 4 Each independently selected from C 1 -C 20 Hydrocarbyl; or

[0188] Mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0189] iii) A stabilizing amount of a co - synergist selected from the group consisting of: bis - amides of fatty acids having the general formula (IV):

[0190]

[0191] Wherein R a is a C7 - C25 alkyl group having 0 to 6 unsaturated double bonds and n is 2 to 10; and,

[0192] Wherein the co - surfactant is selected from the group consisting of: alkoxylated C12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, which are not present in the stabilizer composition (0 wt.%); and

[0193] wherein the co - synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition

[0194] or

[0195] b) a masterbatch concentrate as described herein;

[0196] such that the final concentration of the co - synergist (IV) and co - active agent in the combined composition in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0197] In certain embodiments, a stabilized polymer composition or a stabilized article comprising a stabilizer composition as described herein may be further characterized and distinguished in that the contact angle of water droplets at the surface of the stabilized material may be from 10° to 100°; preferably greater than 20°; more preferably greater than 50°; still more preferably greater than 75°.

[0198] Organic material to be stabilizedSuitable for stabilizing various inanimate organic materials include, but are not limited to, polyolefins, poly(ethylene-vinyl acetate) (EVA); polyesters, polyethers, polyketones, polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes, high-impact polystyrenes, polyacrylates, polymethacrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styrene acrylonitrile, cellulose acetate butyrate, cellulose polymers, polyimides, polyamide-imides, polyether-imides, polyphenylene sulfides, polyphenylene ether polysulfones, polyether sulfones, polyvinyl chlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino resin-crosslinked polyacrylates and polyesters, polyisocyanate-crosslinked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, dry and non-dry alkyd resins, alkyd resins, polyester resins, acrylate resins crosslinked with melamine resins, urea resins, isocyanates, isocyanurates, urethanes, epoxy resins, crosslinked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are crosslinked with acid anhydrides or amines, polysiloxanes, Michael addition polymers, amines, amines capped with activated unsaturated and methylene compounds, ketimines having activated unsaturated and methylene compounds, polyketimines combined with unsaturated acrylic polyacetoacetate resins, polyketimines combined with unsaturated acrylic resins, coating compositions, radiation-curable compositions, epoxy melamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

[0199] In certain embodiments, the organic material to be stabilized includes polyolefins. Polyolefins suitable for use with the stabilizer compositions defined herein include, but are not limited to:

[0200] (A) Polymers of monoolefins such as polypropylene, polyisobutene, polybut-1-ene and poly-4-methylpent-1-ene, polymers of dienes such as polyisoprene or polybutadiene, and polymers of cycloolefins such as cyclopentene or norbornene, polyethylene (which may optionally be crosslinked), such as high-density polyethylene (HDPE), high-density and high-molecular-weight polyethylene (HDPE-HMW), high-density and ultra-high-molecular-weight polyethylene (HDPE-UHMW), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), (VLDPE) and (ULDPE);

[0201] (B) Polyolefins, i.e., polymers of monoolefins exemplified in (A), preferably polyethylene and polypropylene, can be prepared by different and in particular the following methods: i) free radical polymerization (usually under high pressure and at elevated temperature); or ii) catalytic polymerization using a catalyst usually containing one or more metals of groups IVb, Vb, VIb or VIII of the Periodic Table. These metals usually have one or more ligands, typically oxides, halides, alcoholates, esters, ethers, amines, alkyls, alkenyls and / or aryls, and the ligands can be p- or s-coordinated. These metal complexes can be in free form or immobilized on a substrate, typically on activated magnesium chloride, titanium(III) chloride, alumina or silica. These catalysts may be soluble or insoluble in the polymerization medium. These catalysts themselves can be used in the polymerization, or additional activators, typically metal alkyls, metal hydrides, metal alkyl halides, metal alkoxides or alkyloxanes, where the metal is an element of groups Ia, IIa and / or IIIa of the Periodic Table, can be used. The activators can be conveniently modified with additional ester, ether, amine or silyl ether groups. These catalyst systems are generally referred to as Phillips, Standard Oil Indiana, Ziegler (-Natta), TNZ (DuPont), metallocene or single site catalysts (SSC);

[0202] (C) Mixtures of the polymers mentioned under (A), such as mixtures of polypropylene and polyisobutylene, mixtures of polypropylene and polyethylene (e.g., PP / HDPE, PP / LDPE) and mixtures of different types of polyethylene (e.g., LDPE / HDPE); and

[0203] (D) Copolymers of monoolefins and diolefins with each other or with other vinyl monomers, such as ethylene / propylene copolymers, linear low density polyethylene (LLDPE) and mixtures thereof with low density polyethylene (LDPE), propylene / but-1-ene copolymers, propylene / isobutene copolymers, ethylene / but-1-ene copolymers, ethylene / hexene copolymers, ethylene / methylpentene copolymers, ethylene / heptene copolymers, ethylene / octene copolymers, propylene / butadiene copolymers, isobutene / isoprene copolymers, ethylene / alkyl acrylate copolymers, ethylene / alkyl methacrylate copolymers, ethylene / vinyl acetate copolymers and copolymers thereof with carbon monoxide or ethylene / acrylic acid copolymers and their salts (ionomers), and terpolymers of ethylene with propylene and a diene (such as hexadiene, dicyclopentadiene or ethylidene-norbornene); and mixtures of such copolymers with each other and with the polymers mentioned in (A) above, such as polypropylene / ethylene-propylene copolymer, LDPE / ethylene-vinyl acetate copolymer (EVA), LDPE / ethylene-acrylic acid copolymer (EAA), LLDPE / EVA, LLDPE / EAA and alternating or random polyalkylene / carbon monoxide copolymers and mixtures thereof with other polymers such as polyamides.

[0204] Particularly preferred organic materials for stabilizing and providing stabilized articles include polyolefin polymers such as i) polymers of monoolefins selected from polyethylene, polypropylene, polyisobutene, polybut-1-ene, or poly-4-methylpent-1-ene; ii) polymers of diolefins selected from polyisoprene or polybutadiene; iii) polymers of cycloolefins selected from cyclopentene or norbornene; iv) polyethylenes selected from optionally crosslinked polyethylene, high density polyethylene (HDPE), high density and high molecular weight polyethylene (HDPE-HMW), high density and ultrahigh molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), or ultra low density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) their copolymers; and viii) their mixtures.

[0205] In some embodiments, the stabilizer composition and the polymer composition containing the stabilizer composition of the present invention do not contain functionalized olefin polymers or copolymers or olefin polymers or copolymers functionalized with a carboxylic acid or a carboxylic acid reagent functionalized with a functional equivalent thereof. The functionalized olefin polymers and copolymers can be reaction products of olefin polymers or copolymers with α,β-unsaturated carboxylic acid reagents, where the carboxylic acid reagent is a carboxylic acid, an ester or an acid anhydride.

[0206] In some embodiments, the organic material can be polyethylene or polypropylene and can be combined with a stabilizer composition to provide: a co - agent in the form of ethylenebisstearamide from 0.01 wt.% to 5 wt.% based on the weight of the organic material; an o - hydroxyphenyltriazine in the form of 4,6 - bis-(2,4 - dimethylphenyl)-2-(2 - hydroxy - 4 - octoxyphenyl)-s - triazine from 0.001 wt.% to 5 wt.% based on the weight of the stabilized material; a hindered amine light stabilizer from 0.01 wt.% to 5 wt.% based on the weight of the stabilized material, in the form of a condensate of the reaction product of N,N’ - bis(2,2,6,6 - tetramethyl - 4 - piperidyl)-1,6 - hexanediamine polymer with morpholine - 2,4 - dichloro - 1,3,5 - triazine, methylated or non - methylated; optionally a co - agent in the form of diethylene glycol octadecyl ether from 0.01 wt.% to 5 wt.% based on the weight of the stabilized material; and optionally a hindered benzoate in the form of cetyl 3,5 - bis - [tert - butyl]-4 - hydroxybenzoate from 0.01 wt.% to 5 wt.% based on the weight of the stabilized material. In some embodiments, the final amounts of the co - synergist, o - hydroxyphenyltriazine, hindered amine light stabilizer and optional co - agent and optional hindered benzoate are from 0.01 wt.% to 1.0 wt.%.

[0207] Examples. As described herein, the present invention includes at least the following embodiments:

[0208] Example 1. A stabilizer composition comprising:

[0209] i) a stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds, o - hydroxybenzophenone compounds, oxanilides, cyanoacrylates, benzoxazinone compounds, and mixtures thereof;

[0210] ii) a stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0211]

[0212] wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8Hydrocarbyl; and R 29 、R 30 、R 32 and R 33 each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form a C 5 -C 10 cycloalkyl; or

[0213] a functional group according to formula (IIa):

[0214]

[0215] wherein

[0216] m is an integer from 1 to 2;

[0217] R 39 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and

[0218] G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or

[0219] a mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0220] iii) a stabilizing amount of a co-synergist selected from the group consisting of: bisamides of fatty acids having the general formula (IV):

[0221]

[0222] wherein R a is a C7 to C25 alkyl having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and

[0223] iv) a stabilizing amount of a co-activator selected from the group consisting of: alkoxylated C 12 -C 60An alcohol or its monoalkyl ether; an alkoxylated ester of a fatty acid; a sorbitan ester or its ethoxylate; a monoglyceride or polyglyceride having from 1 to 20 glycerol units or its alkoxylate; an alkoxylated fatty amine, its ester or its salt; a sugar ester; an alkoxylated fatty amide; an ethylene oxide / propylene oxide copolymer; and mixtures thereof;

[0224] Wherein the total weight of the co-synergist (IV) and the co-activator is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of the co-synergist to the co-activator is from 1:99 to 99:1.

[0225] Example 2. A stabilizer composition comprising:

[0226] i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o-hydroxyphenyltriazine compounds; o-hydroxybenzophenone compounds; o-hydroxyphenylbenzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof;

[0227] ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0228]

[0229] Wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 、R 30 、R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form C 5 -C 10 cycloalkyl; or

[0230] a functional group according to formula (IIa):

[0231]

[0232] wherein

[0233] m is an integer from 1 to 2;

[0234] R 39 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and

[0235] G 1 -G 4 are each independently selected from C 1 -C 20 hydrocarbyl; or

[0236] a mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0237] iii) a stabilizing amount of a co-synergist selected from the group consisting of bisamides of fatty acids having the general formula (IV):

[0238]

[0239] wherein R a is a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and

[0240] wherein the co-synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and

[0241] wherein the co-activator is selected from the group consisting of alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, and is not present in the stabilizer composition (0 wt.%).

[0242] Example 3. The stabilizer composition according to Example 1, wherein the co-synergist and co-activator combination and the combination of UV absorber and HALS (co-synergist + co-activator):(UVA + HALS) are present in a weight ratio from 1:50 to 50:1.

[0243] Example 4. The stabilizer composition according to any one of claims 1 to 3, wherein the o-hydroxyphenyltriazine compound is a 2-(2'-hydroxyphenyl)-1,3,5-triazine compound according to formula (I):

[0244]

[0245] wherein

[0246] R 34 and R 35 are the same or different and independently selected from

[0247] C 6 -C 10 aryl, wherein the C 6 -C 10 aryl is optionally substituted at from 1 to 3 substitutable positions with one or more groups selected from: OH, halogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, C 1-12 alkoxyester, C 2-12 alkanoyl, or phenyl, wherein the phenyl is optionally substituted at from 1 to 3 substitutable positions with one or more groups selected from: hydroxy, halogen, C 1-12 alkyl, C 1-12 alkoxy, C 1-12 alkoxyester, or C 2-12 alkanoyl;

[0248] mono- or di-C 1 -C 12 hydrocarbyl-substituted amino;

[0249] C 2 -C 12 alkanoyl;

[0250] C 1 -C 12 alkyl;

[0251] C 1 -C 10 acyl; or

[0252] C 1 -C 10 alkoxy; and

[0253] R 36 is a substituent that is the same or different and independently selected from hydroxy, halogen, C 1 -C 12 alkyl, C 1-C 12 alkoxy, C 1 -C 12 alkoxy ester, C 2 -C 12 alkanoyl; phenyl; or C 1 -C 12 acyl.

[0254] Example 5. The stabilizer composition according to Example 4, wherein the 2-(2'-hydroxyphenyl)-1,3,5-triazine compound is selected from the group consisting of:

[0255] 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine;

[0256] 2-(4,6-diphenyl-1,3,5-triazin-2-yl-)-5-((hexyl)oxy-phenol;

[0257] 4,6-bis-(2,4-dimethylphenyl)-2-(2,4-dihydroxyphenyl)-s-triazine;

[0258] 2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine;

[0259] 2,4-bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;

[0260] 2,4-bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(2,4-dimethylphenyl)-s-triazine;

[0261] 2,4-bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine;

[0262] 2,4-bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;

[0263] 2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;

[0264] 2,4-bis(4-biphenyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethyleneoxy]phenyl]-s-triazine;

[0265] 2,4-bis(4-biphenyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine;

[0266] 2-Phenyl-4-[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)phenyl]-6-[2-hydroxy-4-(3-sec-pentyloxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0267] 2,4-Bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(-3-benzyloxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0268] 2,4-Bis(2-hydroxy-4-n-butoxyphenyl)-6-(2,4-di-n-butoxyphenyl)-s-triazine;

[0269] 2,4-Bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropoxy)-5-α-cumylphenyl]-s-triazine;

[0270] Methylene bis-{2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine};

[0271] Mixture of methylene-bridged dimers bridged in the 3:5', 5:5' and 3:3’ positions in a 5:4:1 ratio;

[0272] 2,4,6-Tris(2-hydroxy-4-isooctyloxycarbonylisopropoxy-phenyl)-s-triazine;

[0273] 2,4,6-Tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine;

[0274] 2,4-Bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine;

[0275] 2-(2,4,6-Trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine;

[0276] 2,4,6-Tris[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)-phenyl]-s-triazine;

[0277] Mixture of 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazine and 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine;

[0278] 4,6-Bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine;

[0279] 4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine; and

[0280] a mixture thereof.

[0281] Example 6. The stabilizer composition according to any one of Examples 1 to 3, wherein the o-hydroxybenzophenone compound is selected from the group consisting of: 2-hydroxy-4-methoxybenzophenone; 2,2'-dihydroxy-4-methoxybenzophenone; 2-hydroxy-4-octyloxybenzophenone; 2,2'-dihydroxy-4,4'-di-methoxybenzophenone; 2,2'-dihydroxybenzophenone; 2,2',4,4'-tetrahydroxybenzophenone; 2,2'-dihydroxy-4,4'-dimethoxybenzophenone; 2,2'-dihydroxy-4,4'-diethoxybenzophenone; 2,2'-dihydroxy-4,4'-dipropoxybenzophenone; 2,2'-dihydroxy-4,4'-dibutoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-ethoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-butoxybenzophenone; 2,3'-dihydroxy-4,4'-dimethoxybenzophenone; 2,3'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4,4',6'-tributoxybenzophenone; 2-hydroxy-4-butoxy-4',5'-dimethoxybenzophenone; 2-hydroxy-4-ethoxy-2',4'-dibutylbenzophenone; 2-hydroxy-4-propoxy-4',6'-dichlorobenzophenone; 2-hydroxy-4-propoxy-4',6'-dibromobenzophenone; 2,4-dihydroxybenzophenone; 2-hydroxy-4-ethoxybenzophenone; 2-hydroxy-4-propoxybenzophenone; 2-hydroxy-4-butoxybenzophenone; 2-hydroxy-4-methoxy-4'-methylbenzophenone; 2-hydroxy-4-methoxy-4'-ethylbenzophenone; 2-hydroxy-4-methoxy-4'-propylbenzophenone; 2-hydroxy-4-methoxy-4'-butylbenzophenone; 2-hydroxy-4-methoxy-4'-tert-butylbenzophenone; 2-hydroxy-4-methoxy-4'-chlorobenzophenone; 2-hydroxy-4-methoxy-2'-chlorobenzophenone; 2-hydroxy-4-methoxy-4'-bromobenzophenone; 2-hydroxy-4,4'-dimethoxybenzophenone; 2-hydroxy-4,4'-dimethoxy-3-methylbenzophenone; 2-hydroxy-4,4'-dimethoxy-2'-ethylbenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-methylbenzophenone; 2-hydroxy-4-ethoxy-4'-ethylbenzophenone; 2-hydroxy-4-ethoxy-4'-propylbenzophenone; 2-hydroxy-4-ethoxy-4'-butylbenzophenone; 2-hydroxy-4-ethoxy-4'-methoxybenzophenone;2-Hydroxy-4,4'-diethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-propoxybenzophenone; 2-hydroxy-4-ethoxy-4'-butoxybenzophenone; 2-hydroxy-4-ethoxy-4'-chlorobenzophenone; 2-hydroxy-4-ethoxy-4'-bromobenzophenone; and mixtures thereof.

[0282] Example 7. The stabilizer composition according to any one of Examples 1 to 3, wherein the benzoxazinone compound is selected from the group consisting of: 2-methyl-3,1-benzoxazin-4-one; 2-butyl-3,1-benzoxazin-4-one; 2-phenyl-3,1-benzoxazin-4-one; 2-(1- or 2-naphthyl)-3,1-benzoxazin-4-one; 2-(4-biphenyl)-3,1-benzoxazin-4-one; 2-p-nitrophenyl-3,1-benzoxazin-4-one; 2-m-nitrophenyl-3,1-benzoxazin-4-one; 2-p-benzoylphenyl-3,1-benzoxazin-4-one; 2-p-methoxyphenyl-3,1-benzoxazin-4-one; 2-O-methoxyphenyl-3,1-benzoxazin-4-one; 2-cyclohexyl-3,1-benzoxazin-4-one; 2-p-(or m-)phthalimidophenyl-3,1-benzoxazin-4-one; N-phenyl-4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-benzoyl-4-(3,1-benzoxazin-4-one-2-yl)aniline; N-benzoyl-N-methyl-4-(3,1-benzoxazin-4-one-2-yl)-aniline; 2-[p-(N-phenylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2-[p-(N-phenyl-N-methylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2,2'-bis(3,1-benzoxazin-4-one); 2,2'-ethylenebis(3,1-benzoxazin-4-one); 2,2'-tetramethylenebis(3,1-benzoxazin-4-one); 2,2'-hexamethylenebis(3,1-benzoxazin-4-one); 2,2'-decamethylenebis(3,1-benzoxazin-4-one); 2,2'-p-phenylenebis(3,1-benzoxazin-4-one); 2,2'-m-phenylenebis(3,1-benzoxazin-4-one); 2,2'-(4,4'-diphenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2,6- or 1,5-naphthyl)bis(3,1-benzoxazin-4-one); 2,2'-(2-methyl-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-nitro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-chloro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(1,4-cyclohexylene)bis(3,1-benzoxazin-4-one); N-p-(3,1-benzoxazin-4-one-2-yl)phenyl; 4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-p-(3,1-benzoxazin-4-one-2-yl)benzoyl; 4-(3,1-benzoxazin-4-one-2-yl)aniline; 1,3,5-tris(3,1-benzoxazin-4-one-2-yl)benzene;1,3,5-Tris(3,1-benzoxazin-4-one-2-yl)naphthalene; 2,4,6-tris(3,1-benzoxazin-4-one-2-yl)naphthalene; and mixtures thereof.

[0283] Example 8. The stabilizer composition according to any one of Examples 1 to 7, wherein the ratio of the total amount of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) is from 200:1 to 1:50.

[0284] Example 9. The stabilizer composition according to Example 8, wherein the ratio of the total amount of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) is from 50:1 to 1:30.

[0285] Example 10. The stabilizer composition according to any one of Examples 1 to 9, wherein the hindered amine light stabilizer compound is selected from the group consisting of: bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; 2,2,6,6-tetramethylpiperidin-4-yl stearate; 2,2,6,6-tetramethylpiperidin-4-yl laurate; 1,2,2,6,6-pentamethylpiperidin-4-yl stearate; 1,2,2,6,6-pentamethylpiperidin-4-yl laurate; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 4-benzoyl-2,2,6,6-tetramethylpiperidine; 4-stearyloxy-2,2,6,6-tetramethylpiperidine; bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl) malonate; 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) succinate; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; methylated condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl) hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; condensate of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]Decane-2,4-dione; 3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; Mixture of 4-hexadecyloxy- and 4-stearyloxy-1,2,2,6,6-pentamethylpiperidine; Condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; Condensate of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; 2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane; Oxo-piperazinyl-triazine; Reaction product of 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane and epichlorohydrin; Tetrakis(2,2,6,6-tetramethyl-4-piperidyl) butane-1,2,3,4-tetracarboxylate; 1,2,3,4-Butanetetracarboxylic acid, tetra(1,2,2,6,6-pentamethyl-4-piperidyl) ester; 1,2,3,4-Butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidyl tridecyl ester; 1,2,3,4-Butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidyl tridecyl ester; 1,2,3,4-Butanetetracarboxylic acid, polymer with 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diol, 1,2,2,6,6-pentamethyl-4-piperidyl ester; 1,2,3,4-Butanetetracarboxylic acid, with 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.Polymer of 5-undecane-3,9-diol, 2,2,6,6-tetramethyl-4-piperidyl ester; bis(1-undecyloxy-2,2,6,6-tetramethylpiperidin-4-yl) carbonate; 1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperidinol; 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine; 1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1-yloxy)-2-octadecanoyloxy-2-methylpropane; 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol; reaction product of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol and dimethyl succinate; 2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one; ester of 2,2,6,6-tetramethyl-4-piperidinol and higher fatty acid; 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione; 1H-pyrrole-2,5-dione, 1-octadecyl-, polymer with (1-methylethenyl)benzene and 1-(2,2,6,6-tetramethyl-4-piperidyl)-1H-pyrrole-2,5-dione; piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-; piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-; 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5] Reaction products of decane and epichlorohydrin; condensates of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; condensates of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensates of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; condensates of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; condensates of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine; malonic acid, [(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidinyl) ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 3,5-bis(1,1-dimethylethyl)-4-hydroxy-phenylpropionic acid, 1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4-piperidinyl ester; N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N'-dodecyl oxamide; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidinyl): 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidinyl); condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; 1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidinyl tridecyl ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyl tridecyl ester; tetra(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 2,2,4,4-tetramethyl-21-oxo-7-oxa-3.Mixture of 20-diazaspiro(5.1.11.2)heneicosane-20-propanoic acid dodecyl ester and 2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazaspiro(5.1.11.2)heneicosane-20-propanoic acid tetradecyl ester; 1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexazapentaleno[def]fluorene-4,8-dione, hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-; Polymethyl[propyl-3-oxy(2',2',6',6'-tetramethyl-4,4'-piperidinyl)]siloxane; Polymethyl[propyl-3-oxy(1',2',2',6',6'-pentamethyl-4,4'-piperidinyl)]siloxane; Copolymer of methyl methacrylate with ethyl acrylate and 2,2,6,6-tetramethylpiperidin-4-yl acrylate; Mixed C. 20 to C 24Copolymer of α-olefin and (2,2,6,6-tetramethylpiperidin-4-yl) succinimide; Polymer of 1,2,3,4-butane tetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidyl ester of β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol; Polymer of 1,2,3,4-butane tetracarboxylic acid and copolymer of 2,2,6,6-tetramethyl-4-piperidyl ester of β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol; 1,3-benzenedicarboxamide, N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl); 1,1'-(1,10-dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine); ethanedicarboxamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N'-dodecyl; formamide, N,N'-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidyl)]; D-glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidylidene)-; 2,2,4,4-tetramethyl-7-oxa-3,20-diaza-21-oxadispiro[5.1.11.2]heneicosane; propanamide, 2-methyl-N-(2,2,6,6-tetramethyl-4-piperidyl)-2-[(2,2,6,6-tetramethyl-4-piperidyl)amino]-; 7-oxa-3,20-diazadispiro[5.1.11.2]Heneicosan-20-oic acid, 2,2,4,4-tetramethyl-21-oxo-, dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-β-alanine dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N'-aminooxalamide; Propanamide, N-(2,2,6,6-tetramethyl-4-piperidinyl)-3-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; Bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; Tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,1'-(1,2-Ethanediyl)bis(3,3,5,5-tetramethylpiperazinone); 4-Benzoyl-2,2,6,6-tetramethylpiperidine; 4-Stearyloxy-2,2,6,6-tetramethylpiperidine; Bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl) malonate; 3-N-Octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) sebacate; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) succinate; 8-Acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; 3-Dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 2-Undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane; 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidinyl) and 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidinyl); N. 1 -(β-Hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one; N1 -tert-Octyl-3,3,5,5-tetramethyl-diazepan-2-one; N 1 -tert-Octyl-3,3-pentamethylene-5,5-hexamethylene-diazepan-2-one; N 1 -tert-Octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one; trans-1,2-cyclohexane-bis-(N 1 -5,5-dimethyl-3,3-pentamethylene-2-piperazinone); trans-1,2-cyclohexane-bis-(N 1 -3,3,5,5-dispiropentamethylene-2-piperazinone); N 1 -Isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone; N 1 -Isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone; N 1 -Isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone; trans-1,2-cyclohexane-bis-N 1 -(dimethyl-3,3-pentamethylene-2-piperazinone); N 1 -Octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diaza -2-one; N 1 -Octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diaza -2-one; and mixtures thereof.

[0286] Example 11. The stabilizer composition according to any one of Examples 1 to 10, wherein the co-synergist (IV) is selected from the group consisting of: N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO), N,N'-hexamethylenebis(stearamide), N,N'-hexamethylenebis(oleamide), N,N'-hexamethylenebis(erucamide), N,N'-hexamethylenebis(behenamide), N,N'-ethylenebis(erucamide), N,N'-ethylenebis(behenamide), and mixtures thereof.

[0287] Example 12. The stabilizer composition according to Example 11, wherein the co-synergist (IV) is selected from the group consisting of: N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO), and mixtures thereof.

[0288] Example 13. The stabilizer composition according to any one of Examples 1 to 12, wherein the co-activator is an alkoxylated alcohol according to formula (III) or a monoalkyl ether thereof:

[0289] R-(OCHR’CH 2 ) y -OR”(III),

[0290] wherein R is a hydrocarbon group having from 12 to 60 carbon atoms; R’ is selected from H or C 1 -C 4 alkyl; R” is selected from H or a hydrocarbon group having from 1 to 10 carbon atoms; and y is an integer from 1 to 100.

[0291] Example 14. The stabilizer composition according to Example 13, wherein R is C 12 -C 30 alkyl.

[0292] Example 15. The stabilizer composition according to Example 13, wherein R is C 12 -C 22 alkyl.

[0293] Example 16. The stabilizer composition according to any one of Examples 13 to 15, wherein R” is H.

[0294] Example 17. The stabilizer composition according to any one of Examples 13 to 16, wherein y is from 1 to 75.

[0295] Example 18. The stabilizer composition according to any one of Examples 13 to 17, wherein the co-activator comprises an ethoxylated and / or propoxylated alcohol, and the ethoxylated and / or propoxylated alcohol is selected from the group consisting of: ethoxylated and / or propoxylated docosanol, stearyl alcohol, oleyl alcohol, cetyl alcohol, isotridecanol, lauryl alcohol, C 12 -C 15 alcohol, C 16 / C 18 alcohol and C 20 -C 50 alcohol.

[0296] Example 19. The stabilizer composition according to Example 18, wherein the co-activator comprises a mixture of an ethoxylated alcohol and a propoxylated alcohol.

[0297] Example 20. The stabilizer composition according to Example 19, wherein the ethoxylated alcohol and the propoxylated alcohol comprise ethoxylated C 12 -C 30 alcohol and propoxylated C 12 -C 30 alcohol.

[0298] Example 21. The stabilizer composition according to Example 19 or Example 20, wherein the co-activator is selected from the group consisting of: C having 2 ethylene oxide and 5 propylene oxide groups 12 -C 15 oxo alcohol; and C having 5 ethylene oxide and 2 propylene oxide groups 12 -C 15 oxo alcohol.

[0299] Example 22. The stabilizer composition according to Example 13, wherein R” is methyl and the co-activator comprises a monomethyl ether of an ethoxylated and / or propoxylated alcohol, wherein the alcohol is selected from the group consisting of: docosanol; stearyl alcohol; oleyl alcohol; cetyl alcohol; isotridecanol; lauryl alcohol; C 12 -C 15 alcohol; C 16 / C 18 alcohol; and C 20 -C 50 alcohol.

[0300] Example 23. The stabilizer composition according to any one of Examples 1 and 3 to 22, further comprising an o - hydroxyphenylbenzotriazole compound selected from the group consisting of: 2-(2'-hydroxy - 5'-methylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)benzotriazole; 2-(2'-hydroxy - 3'-methyl - 5'-tert - butylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-cyclohexylphenyl)-benzotriazole; 2-(2'-hydroxy - 3',5'-dimethylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)-5 - chloro - benzotriazole; 2-(2'-hydroxy - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5 - octylphenyl)-2H - benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3'-tert - butyl - 5'-methyl - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3',5'-di - tert - amyl - 2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(α,α - dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert - butyl - 2'-hydroxy - 5'-(2 - octyloxycarbonylethyl)phenyl)benzotriazole; 2,2'-methylenebis[4-(1,1,3,3 - tetramethylbutyl)-6 - benzotriazol - 2 - ylphenol]; the transesterification product of 2-[3'-tert - butyl - 5'-(2 - methoxycarbonylethyl)-2'-hydroxyphenyl]-2H - benzotriazole with polyethylene glycol 300; 2-[2'-hydroxy - 3'-(α,α - dimethylbenzyl)-5'-(1,1,3,3 - tetramethyl - butyl)phenyl]benzotriazole; 5 - trifluoromethyl - 2-(2 - hydroxy - 3 - α - cumyl - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5'-(2 - hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy - 5'-(2 - methacryloyloxyethyl)phenyl)benzotriazole; 2-(3'-tert - butyl - 5'-methyl - 2'-hydroxyphenyl)-5 - chloro - benzotriazole; 2-(3'-sec - butyl - 5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - octyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-dodecyl - 5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-tert - butyl - 5'-(2 - octyloxycarbonylethyl)-2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy - 3'-di - tert - butylphenyl)-benzotriazole; and mixtures thereof.

[0301] Example 24. The stabilizer composition according to Example 2, wherein the o - hydroxyphenylbenzotriazole compound is selected from the group consisting of: 2-(2'-hydroxy - 5'-methylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)benzotriazole; 2-(2'-hydroxy - 3'-methyl - 5'-tert - butylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-cyclohexylphenyl)-benzotriazole; 2-(2'-hydroxy - 3',5'-dimethylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)-5 - chloro - benzotriazole; 2-(2'-hydroxy - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5 - octylphenyl)-2H - benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3'-tert - butyl - 5'-methyl - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3',5'-di - tert - amyl - 2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(α,α - dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert - butyl - 2'-hydroxy - 5'-(2 - octoxycarbonylethyl)phenyl)benzotriazole; 2,2'-methylenebis[4-(1,1,3,3 - tetramethylbutyl)-6 - benzotriazol - 2 - ylphenol]; the transesterification product of 2-[3'-tert - butyl - 5'-(2 - methoxycarbonylethyl)-2'-hydroxyphenyl]-2H - benzotriazole with polyethylene glycol 300; 2-[2'-hydroxy - 3'-(α,α - dimethylbenzyl)-5'-(1,1,3,3 - tetramethyl - butyl)phenyl]benzotriazole; 5 - trifluoromethyl - 2-(2 - hydroxy - 3 - α - cumyl - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5'-(2 - hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy - 5'-(2 - methacryloyloxyethyl)phenyl)benzotriazole; 2-(3'-tert - butyl - 5'-methyl - 2'-hydroxyphenyl)-5 - chloro - benzotriazole; 2-(3'-sec - butyl - 5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - octyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-dodecyl - 5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-tert - butyl - 5'-(2 - octoxycarbonylethyl)-2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy - 3'-di - tert - butylphenyl)-benzotriazole; and mixtures thereof.

[0302] Example 25. The stabilizer composition according to any one of Examples 1 to 24, further comprising a stabilizing amount of a co-stabilizer selected from the group consisting of: hindered benzoates or benzamides, thioesters, hydroxylamines, antioxidants, hindered phenols, phosphites, phosphonites, benzofuranones, nitrones, and mixtures thereof.

[0303] Example 26. The stabilizer composition according to Example 25, wherein the co-stabilizer is a hindered benzoate or benzamide compound according to formula (VII):

[0304]

[0305] wherein

[0306] R 21 and R 22 are each independently selected from C 1 -C 12 alkyl;

[0307] T is selected from O or NR 24 wherein R 24 is H or C 1- C 30 hydrocarbyl; and

[0308] R 23 is H or C 1 -C 30 hydrocarbyl.

[0309] Example 27. The stabilizer composition according to Example 26, wherein the hindered benzoate compound is selected from the group consisting of: 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; cetyl 3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl 3,5-di-tert-butyl-4-hydroxybenzoate; octyl 3,5-di-tert-butyl-4-hydroxybenzoate; decyl 3,5-di-tert-butyl-4-hydroxybenzoate; dodecyl 3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl 3,5-di-tert-butyl-4-hydroxybenzoate; behenyl 3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; butyl 3-[3-tert-butyl-4-(3,5-di-tert-butyl-4-hydroxybenzoyloxy)phenyl]propionate; and mixtures thereof.

[0310] Example 28. The stabilizer composition according to any one of Examples 1 to 27, further comprising a co-additive selected from the group consisting of: a nucleating agent, a filler, a metal stearate, a metal oxide, a reinforcing agent, a plasticizer, a lubricant, a rheology modifier, a catalyst, a leveling agent, an optical brightener, an antistatic agent, a foaming agent, a flame retardant, a dye, a pigment, and mixtures thereof.

[0311] Example 29. A masterbatch concentrate comprising the stabilizer composition according to any one of Examples 1 to 28; and at least one organic material that is the same as or compatible with the organic material to be stabilized by the masterbatch concentrate, wherein the masterbatch concentrate comprises 10 wt.% to 90 wt.% of the stabilizer composition based on the total weight of the masterbatch concentrate.

[0312] Example 30. A stabilized polymer composition comprising an organic material to be stabilized and the stabilizer composition according to any one of Examples 1 to 29.

[0313] Example 31. The stabilized polymer composition according to Example 30, wherein the organic material to be stabilized is selected from the group consisting of: polyolefins, poly(ethylene-vinyl acetate) (EVA), polyesters, polyethers, polyketones, polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes, high impact polystyrenes, polyacrylates, polymethacrylates, polybutyl acrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styrene acrylonitrile, cellulose acetate butyrate, cellulose polymers, polyimides, polyamide-imides, polyether-imides, polyphenylene sulfides, polyphenylene oxide polysulfones, polyether sulfones, polyvinyl chlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino resin crosslinked polyacrylates and polyesters, polyisocyanate crosslinked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, dry and non-dry alkyd resins, alkyd resins, polyester resins, acrylate resins crosslinked with melamine resins, urea resins, isocyanates, isocyanurates, urethanes, epoxy resins, crosslinked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are crosslinked with acid anhydrides or amines, polysiloxanes, Michael addition polymers, amines, amines capped with activated unsaturated and methylene compounds, ketimines having activated unsaturated and methylene compounds, polyketimines combined with unsaturated acrylic polyacetoacetate resins, polyketimines combined with unsaturated acrylic resins, coating compositions, radiation curable compositions, epoxy melamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

[0314] Example 32. The stabilized polymer composition according to Example 31, wherein the organic material to be stabilized is a polyolefin selected from the group consisting of: i) polymers of monoolefins selected from polyethylene, polypropylene, polyisobutene, polybut-1-ene, or poly-4-methylpent-1-ene; ii) polymers of diolefins selected from polyisoprene or polybutadiene; iii) polymers of cycloolefins selected from cyclopentene or norbornene; iv) polyethylenes selected from optionally crosslinked polyethylene, high density polyethylene (HDPE), high density and high molecular weight polyethylene (HDPE-HMW), high density and ultra-high molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), or ultra-low density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) copolymers thereof; and viii) mixtures thereof.

[0315] Example 33. The stabilized polymer composition according to any one of Examples 29 to 32, wherein an olefin polymer or copolymer functionalized with a carboxylic acid or a functional equivalent thereof is not present in the composition.

[0316] Example 34. The stabilized polymer composition according to Example 33, wherein the functionalized olefin polymer and copolymer are reaction products of an olefin polymer or copolymer with an α,β-unsaturated carboxylic acid reagent, wherein the carboxylic acid reagent is a carboxylic acid, an ester, or an acid anhydride.

[0317] Example 35. A stabilized article comprising an organic material to be stabilized; and

[0318] a) A stabilizer composition in an amount from 0.01 wt.% to 15 wt.% based on the total weight of the stabilized article, the stabilizer composition comprising:

[0319] i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o-hydroxyphenyltriazine compounds; o-hydroxybenzophenone compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof;

[0320] ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0321]

[0322] wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 , R 30 , R 32 and R 33 each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form C 5 -C 10 cycloalkyl; or

[0323] a functional group according to formula (IIa):

[0324]

[0325] wherein

[0326] m is an integer from 1 to 2;

[0327] R 39 selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and

[0328] G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or

[0329] a mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0330] iii) a stabilizing amount of a co - synergist selected from the group consisting of bis - amides of fatty acids having the general formula (IV):

[0331]

[0332] wherein R a is a C7 - C25 alkyl having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and,

[0333] iv) A stabilizing amount of a co - surfactant selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their mono - alkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof;

[0334] wherein the total weight of the co - synergist (IV) and the co - surfactant is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and

[0335] the ratio of the co - synergist (IV) to the co - surfactant is from 1:99 to 99:1;

[0336] or

[0337] b) A masterbatch concentrate according to Example 29;

[0338] such that the final concentration of the combined co - synergist (IV) and co - surfactant in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0339] Example 36. A stabilized article according to Example 35, wherein the final concentration of the combined co - synergist (IV) and co - surfactant in the stabilized article is from 0.01 wt.% to 1 wt.% based on the weight of the stabilized article.

[0340] Example 37. A stabilized article according to Example 35 or Example 36, wherein the ratio of the combined co - synergist (IV) and co - surfactant to the ultraviolet absorber (UVA) is from 200:1 to 1:50.

[0341] Example 38. A stabilized article according to Example 37, wherein the ratio of the combined co - synergist (IV) and co - surfactant to the ultraviolet absorber (UVA) is from 50:1 to 1:30.

[0342] Example 39. A stabilized article comprising an organic material to be stabilized; and

[0343] a) A stabilizer composition from 0.01 wt.% to 15 wt.% based on the total weight of the stabilized article, the stabilizer composition comprising:

[0344] i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds; o - hydroxybenzophenone compounds; o - hydroxyphenylbenzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof;

[0345] ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II):

[0346]

[0347] wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 、R 30 、R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form a C 5 -C 10 cycloalkyl; or

[0348] a functional group according to formula (IIa):

[0349]

[0350] wherein

[0351] m is an integer from 1 to 2;

[0352] R 39 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and

[0353] G 1 -G4 each independently selected from C 1 -C 20 hydrocarbyl; or

[0354] a mixture of HALS compounds having functional groups according to formula (II) and formula (IIa);

[0355] iii) a stabilizing amount of a co-synergist selected from the group consisting of bisamides of fatty acids having the general formula (IV):

[0356]

[0357] wherein R a is a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and,

[0358] wherein the co-activator is selected from the group consisting of alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, are not present in the stabilizer composition (0 wt.%); and

[0359] wherein the co-synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition

[0360] or

[0361] b) the masterbatch concentrate according to Example 29;

[0362] such that the final concentration of the combined co-synergist (IV) and co-activator in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

[0363] Example 40. The stabilized article according to any one of Examples 35 to 39, wherein the organic material to be stabilized is selected from the group consisting of: polyolefins, poly(ethylene-vinyl acetate) (EVA), polyesters, polyethers, polyketones, polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes, high impact polystyrenes, polyacrylates, polymethacrylates, polybutyl acrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styrene acrylonitrile, cellulose acetate butyrate, cellulose polymers, polyimides, polyamide-imides, polyether-imides, polyphenylene sulfides, polyphenylene ether polysulfones, polyether sulfones, polyvinyl chlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino resin crosslinked polyacrylates and polyesters, polyisocyanate crosslinked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, dry and non-dry alkyd resins, alkyd resins, polyester resins, acrylate resins crosslinked with melamine resins, urea resins, isocyanates, isocyanurates, urethanes, epoxy resins, crosslinked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are crosslinked with acid anhydrides or amines, polysiloxanes, Michael addition polymers, amines, amines capped with activated unsaturated and methylene compounds, ketimines having activated unsaturated and methylene compounds, polyketimines combined with unsaturated acrylic polyacetoacetate resins, polyketimines combined with unsaturated acrylic resins, coating compositions, radiation curable compositions, epoxy melamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

[0364] Example 41. The stabilized article according to Example 40, wherein the organic material to be stabilized is a polyolefin polymer, and the polyolefin polymer is selected from the group consisting of: i) polymers of monoolefins selected from polyethylene, polypropylene, polyisobutene, polybut-1-ene, or poly-4-methylpent-1-ene; ii) polymers of diolefins selected from polyisoprene or polybutadiene; iii) polymers of cycloolefins selected from cyclopentene or norbornene; iv) polyethylenes selected from optionally crosslinked polyethylene, high density polyethylene (HDPE), high density and high molecular weight polyethylene (HDPE-HMW), high density and ultra-high molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), or ultra-low density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) their copolymers; and viii) their mixtures.

[0365] Example 42. The stable polymer composition according to any one of Examples 35 to 41, wherein an olefin polymer or copolymer functionalized with a carboxylic acid or a functional equivalent thereof is not present in the composition.

[0366] Example 43. The stable polymer composition according to Example 42, wherein the functionalized olefin polymer and copolymer are reaction products of an olefin polymer or copolymer with an α,β-unsaturated carboxylic acid reagent, wherein the carboxylic acid reagent is a carboxylic acid, an ester or an acid anhydride.

[0367] Process / method used:

[0368] UV weathering properties of polypropylene (60° gloss data)

[0369] Sample preparation . Various additive materials were compounded with a polypropylene (Pro-fax 6301) polymer from Lyondell Basell Industries and extruded using conventional single-screw extrusion parameters. After extrusion, standard 2×2×0.125-inch substrates and tensile bars were injection molded using an Arburg injection molding machine. The conditions during injection molding were as follows: nozzle temperature: 230 °C; injection pressure: 60, shot size: 14.5. These additives were used as received, except that certain ethoxylated alcohols were methylated according to the following method.

[0370] UV weathering Samples were exposed to QUV-313 under ASTM G-154 test conditions. Glossiness (60°) values were measured at set exposure intervals. High glossiness values indicate a smooth surface, free of surface cracks or blooming. Samples were considered failed when they began to show surface cracks.

[0371] The results are shown in the table below. The various co-activators and other additives used in formulating these examples are provided by trade name, chemical name, and source of supply. In some cases, these same chemicals may be available from other suppliers under different trade names.

[0372] Table of chemical sources

[0373]

[0374]

[0375] Table 1: UV weathering properties (60° glossiness data) of polypropylene stabilized with HALS + UV absorber + ethylenebisstearamide

[0376]

[0377] *The sample failed due to surface cracks.

[0378] Formulation 1-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS).

[0379] Table 2: UV weathering properties of polypropylene stabilized with HALS + UV absorber + ethylene bisstearamide (60° gloss data)

[0380]

[0381] *The sample failed due to surface cracks.

[0382] Formulation 2-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-1164 (UV absorber) / UV-3853 (HALS).

[0383] Table 3: UV weathering properties of polypropylene stabilized with HALS + UV absorber + hindered benzoate + ethylene bisstearamide (60° gloss data)

[0384]

[0385]

[0386] *The sample failed due to surface cracks.

[0387] Formulation 3-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS) / UV-2908 (hindered benzoate).

[0388] Table 4: UV weathering properties of polypropylene stabilized with UV absorber + ethylene bisstearamide + ethoxylated alcohol (60° gloss data)

[0389]

[0390] *The sample failed due to surface cracks.

[0391] Formulation 4-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS) / S2 (ethoxylated alcohol). Formulations 4-(2) and 4-(3) showed that ethylene bisstearamide contributed better synergistic properties than S2 in enhancing UV weathering stability.

[0392] Table 5: UV weathering properties (60° gloss data) of polypropylene stabilized with HALS + UV absorber + hindered benzoate + ethylene bisstearamide + ethoxylated alcohol

[0393]

[0394] * The sample failed due to surface cracks.

[0395] Formulation 5-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS) / UV-2908 (hindered benzoate) / S2 (ethoxylated alcohol). Formulations 5-(2) and 5-(3) showed that ethylene bisstearamide contributed better synergistic properties than S2 in enhancing UV weathering stability.

[0396] Table 6: UV weathering properties (60° gloss data) of polypropylene stabilized with HALS + UV absorber + ethylene bisstearamide

[0397]

[0398] * The sample failed due to surface cracks.

[0399] Formulation 6-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-5411 (UV absorber) / UV-3346 (HALS).

[0400] Table 7: UV weathering properties (60° gloss data) of polypropylene stabilized with HALS + UV absorber + ethylene bisstearamide

[0401]

[0402]

[0403] * The sample failed due to surface cracks.

[0404] Formulation 7-(4) demonstrated that ethylene bisstearamide showed synergistic properties when used in combination with UV-531 (UV absorber) / UV-3346 (HALS). A comparison of Formulation 7-(4) with Formulations 6-(4) and 1-(4) showed that ethylene bisstearamide had better synergistic properties with the triazine-based UV absorber (UV-1164) than with the benzophenone-based UV absorber (UV-531) and the benzotriazole-based UV absorber (UV-5411).

[0405] Table 8: UV weathering properties of polypropylene stabilized with HALS + UV absorber + ethylene bisstearamide (60° glossiness data)

[0406]

[0407]

[0408] * The sample failed due to surface cracking.

[0409] Formulations 8-(4) to 8-(8) demonstrate that ethylene bisstearamide at different loading levels all show synergistic performance when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS). The UV weathering stability was significantly improved with 0.075% of ethylene bisstearamide. Further increasing the loading level of ethylene bisstearamide did not significantly help improve the UV weathering stability.

[0410] Table 9: UV weathering properties of polypropylene stabilized with HALS + UV absorber + ethylene bisoleamide (60° glossiness data)

[0411]

[0412] * The sample failed due to surface cracking.

[0413] Formulations 9-(5) and 9-(6) demonstrate that ethylene bisoleamide shows synergistic performance when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS).

[0414] Table 10: UV weathering properties of polypropylene stabilized with HALS + UV absorber + stearamide / erucamide (60° glossiness data)

[0415]

[0416]

[0417] * The sample failed due to surface cracking.

[0418] ** The sample failed due to surface frosting on the exposed side.

[0419] Formulations 10-(5) and 10-(6) demonstrate that stearamide or erucamide do not show synergistic performance when used in combination with UV-1164 (UV absorber) / UV-3346 (HALS). Both 10-(5) and 10-(6) show strong blooming on the exposed side of the substrate. Comparison of 10-(3) and 10-(4) with 10-(5) and 10-(6) shows that in enhancing the UV weathering performance of polymers, ethylene bisstearamide and ethylene bisoleamide perform much better than stearamide and erucamide.

[0420] Thermal aging properties of polypropylene (60° gloss data)

[0421] For Thermal aging , the samples were exposed to 150 °C convection oven conditions. Gloss (60°) values were measured at set exposure intervals. High gloss values indicate a smooth surface, free of surface cracks or blooming. When the samples began to show surface cracks, they were considered failed.

[0422] Table 11: Thermal aging properties of polypropylene stabilized with HALS + UV absorber + hindered benzoate + ethylene bisstearamide at 150 °C (60° gloss data)

[0423]

[0424] * Samples failed due to surface cracks.

[0425] Formulation 11-(4) demonstrates that ethylene bisstearamide enhances the thermal properties when used in a synergistic combination with UV-1164 (UV absorber) / UV-3346 (HALS) / UV-2908 (hindered benzoate).

[0426] As will be understood by those skilled in the art, all ranges described herein include upper and lower limits and any values therebetween, as if specifically recited herein, and each value is contemplated by the inventors. Thus, except for the broader ranges, the disclosure of the narrower ranges or more specific groups is not a disclaimer of the broader ranges or larger groups from which they are derived. Throughout this application, various patent and / or scientific literature references have been cited. The disclosures of these publications are hereby incorporated by reference in their entirety as if set forth herein. However, if a term in this application conflicts or contradicts a term in the incorporated references, the term in this application shall control over the conflicting term in the incorporated references. Given the foregoing description and examples, those of ordinary skill in the art will be able to practice the claimed disclosure without undue experimentation.

[0427] While the foregoing description has shown, described, and pointed out the basic novel features of the typical embodiments of the present invention, it will be understood that various omissions, substitutions, and changes may be made by those skilled in the art without departing from the scope of the present teachings.

[0428] Table 12: UV weathering properties of polypropylene stabilized with UV stabilizer + ethylenebisstearamide (EBS) (60° gloss data)

[0429]

[0430] * The sample failed due to surface cracking.

[0431] Formulations 12-(2) to 12-(5) demonstrate that ethylenebisstearamide (EBS) does not show a synergistic performance advantage when used in combination with UV-1164 alone. Instead, comparing 12-(3) with 12-(5) shows that EBS actually has an adverse effect on the performance of UV-1164. Similarly, formulations 12-(6) to 12-(7) demonstrate that ethylenebisstearamide (EBS) does not show a synergistic performance advantage when used in combination with UV-3346, but rather EBS again has an adverse effect on the performance of UV-3346 alone. Formulations 12-(8) to 12-(9) demonstrate that ethylenebisstearamide does not show a synergistic performance when used in combination with UV-2908 alone.

Claims

1. A stabilizer composition, comprising: i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds, o - hydroxybenzophenone compounds, oxanilides, cyanoacrylates, benzoxazinone compounds, and mixtures thereof; ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II): wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 , R 30 , R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form C 5 -C 10 cycloalkyl; or A functional group according to formula (IIa): Wherein m is an integer from 1 to 2; R 39 Selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or A mixture of HALS compounds having functional groups according to formula (II) and formula (IIa); iii) A stabilizing amount of a co - synergist selected from the group consisting of: bis - amides of fatty acids having the general formula (IV): wherein R a is a C7-C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and iv) A stabilizing amount of a co-surfactant selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof; Wherein the total weight of the co - synergist (IV) and the co - activator is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the weight ratio of the co - synergist to the co - activator is from 1:99 to 99:

1.

2. A stabilizer composition, comprising: i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o - hydroxyphenyltriazine compounds; o - hydroxybenzophenone compounds; o - hydroxyphenylbenzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof; ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II): wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 、R 30 、R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form C 5 -C 10 cycloalkyl; or A functional group according to formula (IIa): Wherein m is an integer from 1 to 2; R 39 Selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or A mixture of HALS compounds having functional groups according to formula (II) and formula (IIa); iii) A stabilizing amount of a co - synergist selected from the group consisting of: bis - amides of fatty acids having the general formula (IV): wherein R a is a C7-C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and Wherein the co - synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and wherein the co-surfactant is selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, which are not present in the stabilizer composition (0 wt.%).

3. The stabilizer composition according to claim 1, Wherein, The co - synergist and co - activator of the combination and the UV absorber and HALS of the combination (co - synergist + co - activator):(UVA + HALS) are present in a weight ratio from 1:50 to 50:

1.

4. The stabilizer composition according to any one of claims 1 to 3, Wherein, The o - hydroxyphenyltriazine compound is a 2 - (2’ - hydroxyphenyl) - 1,3,5 - triazine compound according to formula (I): Wherein R 34 and R 35 identical or different and independently selected from C 6 -C 10 aryl, wherein the C 6 -C 10 aryl is optionally substituted at from 1 to 3 substitutable positions with one or more groups selected from: OH, halogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, C 1-12 alkoxy ester, C 2-12 alkanoyl, or phenyl, wherein the phenyl is optionally substituted at from 1 to 3 substitutable positions with one or more groups selected from: hydroxy, halogen, C 1-12 alkyl, C 1-12 alkoxy, C 1-12 alkoxy ester, or C 2-12 alkanoyl; Mono- or di-C 1 -C 12 hydrocarbyl-substituted amino; C 2 -C 12 alkanoyl; C 1 -C 12 alkyl; C 1 -C 10 acyl; or C 1 -C 10 alkoxy; and R 36 is a substituent which is the same or different and independently selected from hydroxy, halogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, C 1 -C 12 alkoxy ester, C 2 -C 12 alkanoyl; phenyl; or C 1 -C 12 acyl at from 0 to 4 positions of the phenoxy moiety having the formula (I).

5. The stabilizer composition according to claim 4, Wherein, The 2 - (2’ - hydroxyphenyl) - 1,3,5 - triazine compound is selected from the group consisting of: 4,6 - bis - (2,4 - dimethylphenyl) - 2 - (2 - hydroxy - 4 - octoxyphenyl) - s - triazine; 2 - (4,6 - diphenyl - 1,3,5 - triazin - 2 - yl) - 5 - ((hexyl)oxy - phenol; 4,6 - bis - (2,4 - dimethylphenyl) - 2 - (2,4 - dihydroxyphenyl) - s - triazine; 2,4-Bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine; 2,4-Bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine; 2,4-Bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(2,4-dimethylphenyl)-s-triazine; 2,4-Bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine; 2,4-Bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine; 2,4-Bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine; 2,4-Bis(4-biphenyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylenoxy]phenyl]-s-triazine; 2,4-Bis(4-biphenyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine; 2-Phenyl-4-[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)phenyl]-6-[2-hydroxy-4-(3-sec-pentyloxy-2-hydroxypropoxy)phenyl]-s-triazine; 2,4-Bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(-3-benzyloxy-2-hydroxypropoxy)phenyl]-s-triazine; 2,4-Bis(2-hydroxy-4-n-butoxyphenyl)-6-(2,4-di-n-butoxyphenyl)-s-triazine; 2,4-Bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropoxy)-5-α-cumylphenyl]-s-triazine; Methylenebis-{2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine}; Mixture of methylene-bridged dimers bridged in the 3:5', 5:5' and 3:3’ positions in a 5:4:1 ratio; 2,4,6-Tris(2-hydroxy-4-isooctyloxycarbonylisopropoxy-phenyl)-s-triazine; 2,4,6-Tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine; 2,4-Bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine; 2-(2,4,6-Trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-s-triazine; 2,4,6-Tris[2-hydroxy-4-(3-sec-butoxy-2-hydroxypropoxy)-phenyl]-s-triazine; Mixture of 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazine and 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine; 4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine; 4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine; and a mixture thereof.

6. The stabilizer composition according to any one of claims 1 to 3, wherein, The o-hydroxybenzophenone compound is selected from the group consisting of: 2-hydroxy-4-methoxybenzophenone; 2,2'-dihydroxy-4-methoxybenzophenone; 2-hydroxy-4-octyloxybenzophenone; 2,2'-dihydroxy-4,4'-di-methoxybenzophenone; 2,2'-dihydroxybenzophenone; 2,2',4,4'-tetrahydroxybenzophenone; 2,2'-dihydroxy-4,4'-dimethoxybenzophenone; 2,2'-dihydroxy-4,4'-diethoxybenzophenone; 2,2'-dihydroxy-4,4'-dipropoxybenzophenone; 2,2'-dihydroxy-4,4'-dibutoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-ethoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-propoxybenzophenone; 2,2'-dihydroxy-4-ethoxy-4'-butoxybenzophenone; 2,3'-dihydroxy-4,4'-dimethoxybenzophenone; 2,3'-dihydroxy-4-methoxy-4'-butoxybenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4,4',6'-tributoxybenzophenone; 2-hydroxy-4-butoxy-4',5'-dimethoxybenzophenone; 2-hydroxy-4-ethoxy-2',4'-dibutylbenzophenone; 2-hydroxy-4-propoxy-4',6'-dichlorobenzophenone; 2-hydroxy-4-propoxy-4',6'-dibromobenzophenone; 2,4-dihydroxybenzophenone; 2-hydroxy-4-ethoxybenzophenone; 2-hydroxy-4-propoxybenzophenone; 2-hydroxy-4-butoxybenzophenone; 2-hydroxy-4-methoxy-4'-methylbenzophenone; 2-hydroxy-4-methoxy-4'-ethylbenzophenone; 2-hydroxy-4-methoxy-4'-propylbenzophenone; 2-hydroxy-4-methoxy-4'-butylbenzophenone; 2-hydroxy-4-methoxy-4'-tert-butylbenzophenone; 2-hydroxy-4-methoxy-4'-chlorobenzophenone; 2-hydroxy-4-methoxy-2'-chlorobenzophenone; 2-hydroxy-4-methoxy-4'-bromobenzophenone; 2-hydroxy-4,4'-dimethoxybenzophenone; 2-hydroxy-4,4'-dimethoxy-3-methylbenzophenone; 2-hydroxy-4,4'-dimethoxy-2'-ethylbenzophenone; 2-hydroxy-4,4',5'-trimethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-methylbenzophenone; 2-hydroxy-4-ethoxy-4'-ethylbenzophenone; 2-hydroxy-4-ethoxy-4'-propylbenzophenone; 2-hydroxy-4-ethoxy-4'-butylbenzophenone; 2-hydroxy-4-ethoxy-4'-methoxybenzophenone; 2-hydroxy-4,4'-diethoxybenzophenone; 2-hydroxy-4-ethoxy-4'-propoxybenzophenone;2-Hydroxy-4-ethoxy-4'-butoxybenzophenone; 2-hydroxy-4-ethoxy-4'-chlorobenzophenone; 2-hydroxy-4-ethoxy-4'-bromobenzophenone; and mixtures thereof.

7. The stabilizer composition according to any one of claims 1 to 3, wherein, The benzoxazinone compound is selected from the group consisting of: 2-methyl-3,1-benzoxazin-4-one; 2-butyl-3,1-benzoxazin-4-one; 2-phenyl-3,1-benzoxazin-4-one; 2-(1- or 2-naphthyl)-3,1-benzoxazin-4-one; 2-(4-biphenylyl)-3,1-benzoxazin-4-one; 2-p-nitrophenyl-3,1-benzoxazin-4-one; 2-m-nitrophenyl-3,1-benzoxazin-4-one; 2-p-benzoylphenyl-3,1-benzoxazin-4-one; 2-p-methoxyphenyl-3,1-benzoxazin-4-one; 2-O-methoxyphenyl-3,1-benzoxazin-4-one; 2-cyclohexyl-3,1-benzoxazin-4-one; 2-p-(or m-)phthalimidophenyl-3,1-benzoxazin-4-one; N-phenyl-4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-benzoyl-4-(3,1-benzoxazin-4-one-2-yl)aniline; N-benzoyl-N-methyl-4-(3,1-benzoxazin-4-one-2-yl)-aniline; 2-[p-(N-phenylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2-[p-(N-phenyl-N-methylcarbamoyl)phenyl]-3,1-benzoxazin-4-one; 2,2'-bis(3,1-benzoxazin-4-one); 2,2'-ethylenebis(3,1-benzoxazin-4-one); 2,2'-tetramethylenebis(3,1-benzoxazin-4-one); 2,2'-hexamethylenebis(3,1-benzoxazin-4-one); 2,2'-decamethylenebis(3,1-benzoxazin-4-one); 2,2'-p-phenylenebis(3,1-benzoxazin-4-one); 2,2'-m-phenylenebis(3,1-benzoxazin-4-one); 2,2'-(4,4'-diphenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2,6- or 1,5-naphthalene)bis(3,1-benzoxazin-4-one); 2,2'-(2-methyl-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-nitro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(2-chloro-p-phenylene)bis(3,1-benzoxazin-4-one); 2,2'-(1,4-cyclohexylene)bis(3,1-benzoxazin-4-one); N-p-(3,1-benzoxazin-4-one-2-yl)phenyl; 4-(3,1-benzoxazin-4-one-2-yl)phthalimide; N-p-(3,1-benzoxazin-4-one-2-yl)benzoyl; 4-(3,1-benzoxazin-4-one-2-yl)aniline; 1,3,5-tris(3,1-benzoxazin-4-one-2-yl)benzene; 1,3,5-tris(3,1-benzoxazin-4-one-2-yl)naphthalene;2,4,6-tris(3,1-benzoxazin-4-one-2-yl)naphthalene; and mixtures thereof.

8. The stabilizer composition according to any one of claims 1 to 7, wherein, the ratio of the total amount of the co-synergist (IV) and co-activator in combination to the ultraviolet absorber (UVA) is from 200:1 to 1:50, preferably from 50:1 to 1:

30.

9. The stabilizer composition according to any one of claims 1 to 8, wherein, The hindered amine light stabilizer compound is selected from the group consisting of: bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; the condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; 2,2,6,6-tetramethylpiperidin-4-yl stearate; 2,2,6,6-tetramethylpiperidin-4-yl laurate; 1,2,2,6,6-pentamethylpiperidin-4-yl stearate; 1,2,2,6,6-pentamethylpiperidin-4-yl laurate; the condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 4-benzoyl-2,2,6,6-tetramethylpiperidine; 4-stearyloxy-2,2,6,6-tetramethylpiperidine; bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate; 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) sebacate; bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) succinate; the condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; the methylated condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; the condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; the condensate of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]Decane-2,4-dione; 3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; mixture of 4-hexadecyloxy- and 4-stearyloxy-1,2,2,6,6-pentamethylpiperidine; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; condensate of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; 2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane; oxo-piperazinyl-triazine; 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxaspiro[. Reaction product of decane and epichlorohydrin; tetra(2,2,6,6-tetramethyl-4-piperidyl) butane-1,2,3,4-tetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, tetra(1,2,2,6,6-pentamethyl-4-piperidyl) ester; 1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidyl tridecyl ester; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidyl tridecyl ester; Polymer of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 1,2,2,6,6-pentamethyl-4-piperidyl ester; Polymer of 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 2,2,6,6-tetramethyl-4-piperidyl ester; Bis(1-undecyloxy-2,2,6,6-tetramethylpiperidin-4-yl) carbonate; 1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperidinol; 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine; 1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1-yloxy)-2-octadecanoyloxy-2-methylpropane; 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol; Reaction product of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperidinol and dimethyl succinate; 2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one; Ester of 2,2,6,6-tetramethyl-4-piperidinol and higher fatty acid; 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione; 1H-Pyrrole-2,5-dione, 1-octadecyl-, polymer with (1-methylethenyl)benzene and 1-(2,2,6,6-tetramethyl-4-piperidyl)-1H-pyrrole-2,5-dione; Piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-; Piperazinone, 1,1',1''-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-; 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro Reaction product of 4.5]decane and epichlorohydrin; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; condensate of 1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine; condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; condensate of 2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane; 2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine; malonic acid, [(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidyl) ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 3,5-bis(1,1-dimethylethyl)-4-hydroxy-benzenepropanoic acid, 1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4-piperidyl ester; N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N'-dodecyl oxamide; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidyl): 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidyl); condensate of 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine; 1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidyl tridecyl ester; tetra(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidyl tridecyl ester; tetra(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate; 2,2,4,4-tetramethyl-21-oxo-7-oxa-3.Mixture of 20-diazaspiro(5.1.11.2)heneicosane-20-propanoic acid dodecyl ester and 2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazaspiro(5.1.11.2)heneicosane-20-propanoic acid tetradecyl ester; 1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-4,8-dione, hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-; polymethyl[propyl-3-oxy(2',2',6',6'-tetramethyl-4,4'-piperidinyl)]siloxane; polymethyl[propyl-3-oxy(1',2',2',6',6'-pentamethyl-4,4'-piperidinyl)]siloxane; copolymer of methyl methacrylate with ethyl acrylate and 2,2,6,6-tetramethylpiperidin-4-yl acrylate; mixed C. 20 to C 24 Copolymer of α-olefin and (2,2,6,6-tetramethylpiperidin-4-yl)succinimide; Polymer of 1,2,3,4-butanetetracarboxylic acid and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 1,2,2,6,6-pentamethyl-4-piperidyl ester; Polymer of 1,2,3,4-butanetetracarboxylic acid and β,β,β',β'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diol, 2,2,6,6-tetramethyl-4-piperidyl ester copolymer; 1,3-Benzenedicarboxamide, N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl); 1,1'-(1,10-Dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine); Ethanedicarboxamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N'-dodecyl; Formamide, N,N'-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl)]; D-Glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidylidene)-; 2,2,4,4-Tetramethyl-7-oxa-3,20-diaza-21-oxo-dispiro[5.1.11.2]heneicosane; Propanamide, 2-methyl-N-(2,2,6,6-tetramethyl-4-piperidyl)-2-[(2,2,6,6-tetramethyl-4-piperidyl)amino]-; 7-Oxa-3,20-diazadispiro[5.1.11.2]Heneicosan-20-oic acid, 2,2,4,4-tetramethyl-21-oxo-, dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-β-alanine dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N'-aminooxalamide; Propanamide, N-(2,2,6,6-tetramethyl-4-piperidyl)-3-[(2,2,6,6-tetramethyl-4-piperidyl)amino]-; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; Bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzyl malonate; Tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,1'-(1,2-Ethanediyl)bis(3,3,5,5-tetramethylpiperazinone); 4-Benzoyl-2,2,6,6-tetramethylpiperidine; 4-Stearyloxy-2,2,6,6-tetramethylpiperidine; Bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl) malonate; 3-N-Octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) sebacate; Bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl) succinate; 8-Acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione; 3-Dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1-acetyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-Dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; Mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; 2-Undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxaspiro[4.5]decane; 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidyl) and 1,5-Dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(1,2,2,6,6-pentamethyl-4-piperidyl); N. 1 -(β-Hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one; N 1 -tert-octyl-3,3,5,5-tetramethyl-diazepan-2-one; N 1 -tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepan-2-one; N 1 -tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one; trans-1,2-cyclohexane-bis-(N 1 -5,5-dimethyl-3,3-pentamethylene-2-piperazinone); trans-1,2-cyclohexane-bis-(N 1 -3,3,5,5-dispiropentamethylene-2-piperazinone); N 1 -isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone; N 1 -isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone; N 1 -isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone; trans-1,2-cyclohexane-bis-N 1 -(dimethyl-3,3-pentamethylene-2-piperazinone); N 1 -octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diaza -2-one; N 1 -octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diaza -2-one; and mixtures thereof.

10. The stabilizer composition according to any one of claims 1 to 9, wherein, The co-agent (IV) is selected from the group consisting of: N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO), N,N'-hexamethylenebis(stearamide), N,N'-hexamethylenebis(oleamide), N,N'-hexamethylenebis(erucamide), N,N'-hexamethylenebis(behenamide), N,N'-ethylenebis(erucamide), N,N'-ethylenebis(behenamide) and mixtures thereof, and is preferably selected from the group consisting of: N,N'-ethylenebis(stearamide) (EBS), N,N'-ethylenebis(oleamide) (EBO) and mixtures thereof.

11. The stabilizer composition according to any one of claims 1 to 1210, wherein, the co-activator is an alkoxylated alcohol of formula (III) or its monoalkyl ether: R-(OCHR’CH 2 ) y -OR”(III), wherein R is a hydrocarbon group having from 12 to 60 carbon atoms, in particular R is C 12 -C 30 alkyl, preferably C 12 -C 22 alkyl; R' is selected from H or C 1 -C 4 alkyl; R" is selected from H or a hydrocarbon group having from 1 to 10 carbon atoms, preferably R" is H; and y is an integer from 1 to 100, preferably from 1 to 75.

12. The stabilizer composition according to claim 11, wherein, The co-surfactant comprises an ethoxylated and / or propoxylated alcohol, wherein the ethoxylated and / or propoxylated alcohol is selected from the group consisting of: ethoxylated and / or propoxylated docosanol, stearyl alcohol, oleyl alcohol, cetyl alcohol, isotridecyl alcohol, lauryl alcohol, C 12 -C 15 alcohol, C 16 / C 18 alcohol and C 20 -C 50 alcohol.

13. The stabilizer composition according to claim 12, wherein, The co-surfactant comprises a mixture of ethoxylated alcohols and propoxylated alcohols, in particular ethoxylated C 12 -C 30 alcohols and propoxylated C 12 -C 30 alcohols of ethoxylated alcohols and propoxylated alcohols.

14. The stabilizer composition according to claim 13, wherein, The co-surfactant is selected from the group consisting of: a C having 2 ethylene oxide and 5 propylene oxide groups 12 -C 15 oxo alcohol; and a C having 5 ethylene oxide and 2 propylene oxide groups 12 -C 15 oxo alcohol.

15. The stabilizer composition according to claim 11, wherein, "R” is methyl and the co-surfactant comprises a monomethyl ether of an ethoxylated and / or propoxylated alcohol, wherein the alcohol is selected from the group consisting of: docosanol; stearyl alcohol; oleyl alcohol; cetyl alcohol; isotridecanol; lauryl alcohol; C 12 -C 15 alcohol; C 16 / C 18 alcohol; and C 20 -C 50 alcohol.

16. The stabilizer composition according to any one of claims 1 and 3 to 15, further comprising an o - hydroxyphenylbenzotriazole compound selected from the group consisting of: 2-(2'-hydroxy - 5'-methylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)benzotriazole; 2-(2'-hydroxy - 3'-methyl - 5'-tert - butylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-cyclohexylphenyl)-benzotriazole; 2-(2'-hydroxy - 3',5'-dimethylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)-5 - chloro - benzotriazole; 2-(2'-hydroxy - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5 - octylphenyl)-2H - benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3'-tert - butyl - 5'-methyl - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3',5'-di - tert - amyl - 2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(α,α - dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert - butyl - 2'-hydroxy - 5'-(2 - octyloxycarbonylethyl)phenyl)benzotriazole; 2,2'-methylenebis[4-(1,1,3,3 - tetramethylbutyl)-6 - benzotriazol - 2 - ylphenol]; the transesterification product of 2-[3'-tert - butyl - 5'-(2 - methoxycarbonylethyl)-2'-hydroxyphenyl]-2H - benzotriazole and polyethylene glycol 300; 2-[2'-hydroxy - 3'-(α,α - dimethylbenzyl)-5'-(1,1,3,3 - tetramethyl - butyl)phenyl]benzotriazole; 5 - trifluoromethyl - 2-(2 - hydroxy - 3 - α - cumyl - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5'-(2 - hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy - 5'-(2 - methacryloyloxyethyl)phenyl)benzotriazole; 2-(3'-tert - butyl - 5'-methyl - 2'-hydroxyphenyl)-5 - chloro - benzotriazole; 2-(3'-sec - butyl - 5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - octyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-dodecyl - 5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-tert - butyl - 5'-(2 - octyloxycarbonylethyl)-2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy - 3'-di - tert - butylphenyl)-benzotriazole; and mixtures thereof.

17. The stabilizer composition according to claim 2, wherein, The o - hydroxy - phenyl - benzotriazole compound is selected from the group consisting of: 2-(2'-hydroxy - 5'-methylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)benzotriazole; 2-(2'-hydroxy - 3'-methyl - 5'-tert - butylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-cyclohexylphenyl)-benzotriazole; 2-(2'-hydroxy - 3',5'-dimethylphenyl)-benzotriazole; 2-(2'-hydroxy - 5'-tert - butylphenyl)-5 - chloro - benzotriazole; 2-(2’ - hydroxy - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2’ - hydroxy - 5 - octylphenyl)-2H - benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3’ - tert - butyl - 5’ - methyl - butyl - 2’ - hydroxyphenyl)-5 - chlorobenzotriazole; 2-(3',5'-di - tert - amyl - 2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(α,α - dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert - butyl - 2'-hydroxy - 5'-(2 - octoxycarbonylethyl)phenyl)benzotriazole; 2,2'-methylene - bis[4-(1,1,3,3 - tetramethylbutyl)-6 - benzotriazol - 2 - ylphenol]; the transesterification product of 2-[3'-tert - butyl - 5'-(2 - methoxycarbonylethyl)-2'-hydroxyphenyl]-2H - benzotriazole and polyethylene glycol 300; 2-[2'-hydroxy - 3'-(α,α - dimethylbenzyl)-5'-(1,1,3,3 - tetramethyl - butyl)phenyl]benzotriazole; 5 - trifluoromethyl - 2-(2 - hydroxy - 3 - α - cumyl - 5 - tert - octylphenyl)-2H - benzotriazole; 2-(2'-hydroxy - 5'-(2 - hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy - 5'-(2 - methacryloyloxyethyl)phenyl)benzotriazole; 2-(3'-tert - butyl - 5'-methyl - 2'-hydroxyphenyl)-5 - chloro - benzotriazole; 2-(3'-sec - butyl - 5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3',5'-di - tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - octyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-dodecyl - 5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(3'-tert - butyl - 5'-(2 - octoxycarbonylethyl)-2'-hydroxyphenyl)-5 - chlorobenzotriazole; 2-(5'-methyl - 2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert - butyl - 2'-hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy - 3'-di - tert - butylphenyl)-benzotriazole; and mixtures thereof.

18. The stabilizer composition according to any one of claims 1 to 17, further comprising a stabilizing amount of a co-stabilizer selected from the group consisting of: hindered benzoates or benzamides, thioesters, hydroxylamines, antioxidants, hindered phenols, phosphites, phosphonites, benzofuranones, nitrones, and mixtures thereof.

19. The stabilizer composition according to claim 18, wherein, the co-stabilizer is a hindered benzoate or benzamide compound according to formula (VII): wherein R 21 and R 22 each independently selected from C 1 -C 12 alkyl; T is selected from O or NR 24 , wherein R 24 is H or C 1- C 30 hydrocarbyl; and R 23 is H or C 1- C 30 a hydrocarbyl group and preferably wherein the hindered benzoate compound is selected from the group consisting of: 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; cetyl 3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl 3,5-di-tert-butyl-4-hydroxybenzoate; octyl 3,5-di-tert-butyl-4-hydroxybenzoate; decyl 3,5-di-tert-butyl-4-hydroxybenzoate; dodecyl 3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl 3,5-di-tert-butyl-4-hydroxybenzoate; behenyl 3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; butyl 3-[3-tert-butyl-4-(3,5-di-tert-butyl-4-hydroxybenzoyloxy)phenyl]propionate; and mixtures thereof.

20. The stabilizer composition according to any one of claims 1 to 19, further comprising a co-additive selected from the group consisting of: nucleating agents, fillers, metal stearates, metal oxides, reinforcing agents, plasticizers, lubricants, rheology modifiers, catalysts, leveling agents, optical brighteners, antistatic agents, blowing agents, flame retardants, dyes, pigments, and mixtures thereof.

21. A masterbatch concentrate comprising the stabilizer composition according to any one of claims 1 to 20; and at least one organic material that is the same as or compatible with the organic material to be stabilized by the masterbatch concentrate, wherein the masterbatch concentrate comprises 10 wt.% to 90 wt.% of the stabilizer composition based on the total weight of the masterbatch concentrate.

22. A stabilized polymer composition comprising an organic material to be stabilized and the stabilizer composition according to any one of claims 1 to 21.

23. The stabilized polymer composition according to claim 22, wherein, The organic material to be stabilized is selected from the group consisting of: polyolefins, poly(ethylene-vinyl acetate) (EVA), polyesters, polyethers, polyketones, polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes, high impact polystyrenes, polyacrylates, polymethacrylates, polybutyl acrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styrene acrylonitrile, cellulose acetate butyrate, cellulose polymers, polyimides, polyamide-imides, polyether-imides, polyphenylene sulfides, polyphenylene ether polysulfones, polyether sulfones, polyvinyl chlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino resin crosslinked polyacrylates and polyesters, polyisocyanate crosslinked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, dry and non-dry alkyd resins, alkyd resins, polyester resins, acrylate resins crosslinked with melamine resins, urea resins, isocyanates, isocyanurates, urethanes, epoxy resins, crosslinked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are crosslinked with acid anhydrides or amines, polysiloxanes, Michael addition polymers, amines, amines capped with activated unsaturated and methylene compounds, ketimines having activated unsaturated and methylene compounds, polyketimines combined with unsaturated acrylic polyacetoacetate resins, polyketimines combined with unsaturated acrylic resins, coating compositions, radiation curable compositions, epoxy melamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

24. The stabilized polymer composition according to claim 23, wherein, the organic material to be stabilized is a polyolefin, and the polyolefin is selected from the group consisting of: i) polymers of monoolefins selected from polyethylene, polypropylene, polyisobutene, polybut-1-ene, or poly-4-methylpent-1-ene; ii) polymers of diolefins selected from polyisoprene or polybutadiene; iii) polymers of cycloolefins selected from cyclopentene or norbornene; iv) polyethylenes selected from optionally crosslinked polyethylene, high density polyethylene (HDPE), high density and high molecular weight polyethylene (HDPE-HMW), high density and ultra high molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), or ultra low density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) their copolymers; and viii) their mixtures.

25. The stabilized polymer composition according to any one of claims 21 to 24, wherein, no olefin polymer or copolymer functionalized with a carboxylic acid or its functional equivalent is present in the composition.

26. The stable polymer composition according to claim 25, wherein, the functionalized olefin polymers and copolymers are reaction products of an olefin polymer or copolymer with an α,β-unsaturated carboxylic acid reagent, wherein the carboxylic acid reagent is a carboxylic acid, an ester or an acid anhydride.

27. A stable article comprising an organic material to be stabilized; and a) A stabilizer composition from 0.01 wt.% to 15 wt.% based on the total weight of the stable article, the stabilizer composition comprising: i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o-hydroxyphenyltriazine compounds; o-hydroxybenzophenone compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof; ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II): wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 , R 30 , R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form a C 5 -C 10 cycloalkyl; or A functional group according to formula (IIa): wherein m is an integer from 1 to 2; R 39 Selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or A mixture of HALS compounds having functional groups according to formula (II) and formula (IIa); iii) A stabilizing amount of a co-synergist selected from the group consisting of bisamides of fatty acids having the general formula (IV): wherein R a is a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; and, iv) A stabilizing amount of a co-surfactant selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof; wherein the total weight of the co-synergist (IV) and the co-activator is from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition; and the ratio of the co-synergist (IV) to the co-activator is 1:99 to 99:1; or b) A masterbatch concentrate according to claim 21; such that the final concentration of the combined co-synergist (IV) and co-activator in the stable article is from 0.01 wt.% to 5 wt.% based on the weight of the stable article.

28. The stable article according to claim 27, wherein, the final concentration of the combined co-synergist (IV) and co-activator in the stable article is from 0.01 wt.% to 1 wt.% based on the weight of the stable article.

29. The stable article according to claim 27 or claim 28, wherein, the ratio of the combined co-synergist (IV) and co-activator to the ultraviolet absorber (UVA) is from 200:1 to 1:50, preferably from 50:1 to 1:

30.

30. A stable article comprising an organic material to be stabilized; and a) A stabilizer composition from 0.01 wt.% to 15 wt.% based on the total weight of the stable article, the stabilizer composition comprising: i) A stabilizing amount of an ultraviolet absorber (UVA) selected from the group consisting of: o-hydroxyphenyltriazine compounds; o-hydroxybenzophenone compounds; o-hydroxyphenylbenzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof; ii) A stabilizing amount of a hindered amine light stabilizer compound (HALS) comprising a functional group according to formula (II): wherein R 31 is selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; R 38 is selected from: hydrogen; or C 1 -C 8 hydrocarbyl; and R 29 、R 30 、R 32 and R 33 are each independently selected from C 1 -C 20 hydrocarbyl, or R 29 and R 30 and / or R 32 and R 33 together with the carbon to which they are attached form C 5 -C 10 cycloalkyl; or A functional group according to formula (IIa): wherein m is an integer from 1 to 2; R 39 Selected from: hydrogen; OH; C 1 -C 20 hydrocarbyl; -CH 2 CN; C 1 -C 12 acyl; or C 1 -C 18 alkoxy; and G 1 -G 4 each independently selected from C 1 -C 20 hydrocarbyl; or A mixture of HALS compounds having functional groups according to formula (II) and formula (IIa); and iii) A stabilizing amount of a co - synergist selected from the group consisting of: bis - amides of fatty acids having the general formula (IV): wherein R a is a C7 to C25 alkyl group having from 0 to 6 unsaturated double bonds and n is from 2 to 10; wherein the co-surfactant is selected from the group consisting of: alkoxylated C 12 -C 60 alcohols or their monoalkyl ethers; alkoxylated esters of fatty acids; sorbitan esters or their ethoxylates; monoglycerides or polyglycerides having from 1 to 20 glycerol units or their alkoxylates; alkoxylated fatty amines, their esters or their salts; sugar esters; alkoxylated fatty amides; ethylene oxide / propylene oxide copolymers; and mixtures thereof, which are not present in the stabilizer composition (0 wt.%); and wherein the co - synergist (IV) is present in an amount from 1 wt.% to 99 wt.% based on the total weight of the stabilizer composition or b) The masterbatch concentrate according to claim 21; such that the final concentration of the combined co - synergist (IV) and co - active agent in the stabilized article is from 0.01 wt.% to 5 wt.% based on the weight of the stabilized article.

31. A stabilized article according to any one of claims 27 to 30, wherein, the organic material to be stabilized is selected from the group consisting of: polyolefins, poly(ethylene - vinyl acetate) (EVA), polyesters, polyethers, polyketones, polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes, high - impact polystyrenes, polyacrylates, polymethacrylates, polybutyl acrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile - butadiene - styrene, styrene - acrylonitrile, acrylate - styrene - acrylonitrile, cellulose acetate butyrate, cellulose polymers, polyimides, polyamide - imides, polyether - imides, polyphenylene sulfides, polyphenylene ether - polysulfones, polyethersulfones, polyvinyl chlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino - resin - crosslinked polyacrylates and polyesters, polyisocyanate - crosslinked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, dry and non - dry alkyd resins, alkyd resins, polyester resins, acrylate resins crosslinked with melamine resins, urea resins, isocyanates, isocyanurates, urethanes, epoxy resins, crosslinked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are crosslinked with acid anhydrides or amines, polysiloxanes, Michael addition polymers, amines, amines capped with activated unsaturated and methylene compounds, ketimines having activated unsaturated and methylene compounds, polyketimines combined with unsaturated acrylic polyacetoacetate resins, polyketimines combined with unsaturated acrylic resins, coating compositions, radiation - curable compositions, epoxy - melamine resins, organic dyes, cosmetic products, cellulose - based paper formulations, photographic film paper, fibers, waxes, and inks.

32. A stabilized article according to claim 31, wherein, The organic material to be stabilized is a polyolefin polymer selected from the group consisting of: i) polymers of monoolefins selected from polyethylene, polypropylene, polyisobutylene, polybut-1-ene, or poly-4-methylpent-1-ene; ii) polymers of diolefins selected from polyisoprene or polybutadiene; iii) polymers of cycloolefins selected from cyclopentene or norbornene; iv) polyethylenes selected from optionally crosslinked polyethylene, high density polyethylene (HDPE), high density and high molecular weight polyethylene (HDPE-HMW), high density and ultra-high molecular weight polyethylene (HDPE-UHMW), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), very low density polyethylene (VLDPE), or ultra-low density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) their copolymers; and viii) their mixtures.

33. The stabilized polymer composition according to any one of claims 27 to 32, wherein, an olefin polymer or copolymer functionalized with a carboxylic acid or a functional equivalent thereof is absent from the composition.

34. The stabilized polymer composition according to claim 33, wherein, the functionalized olefin polymer and copolymer are reaction products of an olefin polymer or copolymer with an α,β-unsaturated carboxylic acid reagent, wherein the carboxylic acid reagent is a carboxylic acid, an ester, or an acid anhydride.

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