Stabilized polymer compositions with improved color resistance

Abstract

The present invention relates to a stabilized polymer composition comprising an organic polymeric material to be stabilized and a stabilizer composition comprising at least one UV absorber selected from o-hydroxyphenyl-triazine UV absorber class; a secondary hindered amine light stabilizer (sec.-HALS); at least one antioxidant selected from hindered phenol, phosphite, phosphonite, or any mixture thereof; a tertiary hindered amine light stabilizer (tert.-HALS); an alkoxylated alcohol; and optionally a hindered benzoate which is more resistant to discoloration due to gas fading and thermal oxidation compared to the polymer composition where the stabilizer composition does not include a tertiary HALS stabilizer and an alkoxylated alcohol. Further, a process for making a stabilized article that includes adding the stabilized polymer composition to a device or process for performing industrial molding; industrial fiber making; industrial tape; and extruded sheets, is provided.

Description

STABILIZED POLYMER COMPOSITIONS WITH IMPROVED COLORRESISTANCEBACKGROUND

[0001] A variety of organic materials are known to undergo degradation by several mechanisms including exposure to electromagnetic radiation such as sunlight and other sources of ultraviolet (“UV”) radiation and heat. For example, polymeric materials such as plastics often discolor, lose gloss and mechanical properties and / or become brittle as a result of prolonged exposure to the sun. Accordingly, a large body of art has been developed directed toward materials such as UV light absorbers and various other stabilizers, which are capable of inhibiting such degradation in these materials.

[0002] In particular, UV light absorbers such as benzotriazoles and benzophenones were initially used to stabilize polymeric materials, and to prevent the degradation of such materials from exposure to UV light. Later, it was discovered that hindered amine light stabilizers (“HALS”), which scavenge free radicals formed in the polymeric material when exposed to UV light, were more effective than UV light absorbers (“UVAs”). Accordingly, the use of HALS and UV light absorbers in combination are conventionally used to stabilize polymeric materials.

[0003] The use of UVAs by themselves or in combination with HALS to stabilize polymers such as coatings and plastics against weathering due to the direct or indirect impact of heat and ultraviolet light has remained an active area of research.

[0004] While it is the intent of most stabilizer compositions to reduce or prevent degradation caused by heat, such stabilizer compositions do not typically yield the desired result. Frequently, stabilizer compositions that are useful for reducing or preventing degradation caused by heat are hindered or completely relinquished due to the antagonistic effect when combined with compounds useful for absorption of ultraviolet light.

[0005] It is further known that particular functionalities of organic materials such aspolymeric resins can be achieved by blending certain additives with the polymeric resins. For example, in certain instances it is desirable to modify the surface interface of polymeric materials to produce a variety of related surface effects such as improved slip or lubricity, reduced blocking, or to lubricate processing equipment. It may also be desirable in certain instances to modify polymeric surfaces to improve release of adhesives and promote demolding or adhesion of other materials from a polymeric composition surface. In other instances, polymer films having good clarity and optical properties, and which resist fogging, are desirous. A variety of prior art additives classified as anti-block additives, slip aids, coefficient of frictions modifiers, anti-fog agents, anti-static agents, and release aids have been used in an attempt to provide these attributes to different types of organic materials. These various prior art additives are generally described to be surface active compounds (i.e., surfactants).

[0006] The use of higher levels of surface active compounds which are required to achieve the desired surface effects leads to higher cost and can also often lead to undesirable properties such as blooming and poor processability. Blooming is a process whereby the polymeric article becomes supersaturated with these higher levels of surface active compounds causing the formation of unsightly precipitates at the surface of the article.

[0007] Accordingly, synergistic combinations of stabilizer additives can still be discovered even though the compounds themselves are perhaps known for individual use for a particular purpose, or are known to be used together for a particular purpose at concentrations or ratios not previously disclosed or suggested, and which do not cause undesirable performance properties such as blooming or poor processability of the organic material to which they are added.

[0008] The discovery of such synergistic stabilizer additives that substantially improve the performance characteristics of a variety of organic materials subject to mechanical stress, or effects such as oxidation, chain scission, and uncontrolled recombinations and cross- linking reactions that are caused by photo-oxidation, as well as heat, would be a useful advance in the art and could find rapid acceptance in a number of industries requiring such stabilized materials.SUMMARY

[0009] This summary is provided to introduce a selection of concepts that are further described below in the detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used as an aid in limiting the scope of the claimed subject matter.

[0010] In one aspect, embodiments disclosed herein relate to a stabilized polymer composition comprising an organic polymeric material to be stabilized and a stabilizer composition comprising at least one UV absorber selected from o-hydroxyphenyl-triazine UV absorber class; a secondary hindered amine light stabilizer (sec. -HALS); at least one antioxidant selected from hindered phenol, phosphite, phosphonite, or any mixture thereof; a tertiary hindered amine light stabilizer (tert. -HALS); an alkoxylated alcohol; and optionally a hindered benzoate. The stabilized polymer composition is more resistant to discoloration due to gas fading and thermal oxidation compared to the polymer composition wherein the aforementioned stabilizer composition does not include a tertiary HALS stabilizer and an alkoxylated alcohol.

[0011] In another aspect, embodiments disclosed herein relate to a process for making a stabilized article that includes adding the stabilized polymer composition to a device or process for performing industrial molding; industrial fiber making; industrial tape; and extruded sheets.

[0012] Other aspects and advantages of the claimed subject matter will be apparent from the following description and the appended claims.DETAILED DESCRIPTION

[0013] Stabilized Polymer Compositions

[0014] The stabilizer compositions according to the present disclosure are suitable for use in stabilizing various organic materials subject to mechanical stress, discoloration, or effects such as oxidation, chain scission, and uncontrolled recombination and cross- linking reactions that are caused by photo-oxidation and can be incorporated into such organic material to protect it from these deleterious effects, or it can be used as, or within,a UV filter layer for preventing UV radiation from reaching the organic material or an article of manufacture produced with the organic material.

[0015] The stabilizer compositions according to the disclosure can be readily combined with an organic material to be stabilized, or vice versa, by any suitable method known to those of skill in the art. As used herein the term “combined” or “combining” in reference to the stabilizer composition and the organic material to be stabilized includes all manners and / or techniques known to those skilled in the art for intermixing, admixing, integrating, mixing, or blending two or more substances. In certain embodiments, the components of the stabilizer compositions can be combined with the material to be stabilized by at least one technique chosen from extruding, pelletizing, grinding, and molding. In other embodiments, combining can be performed by at least one of melting, dissolution in a solvent, direct mixing, and dry mixing.

[0016] The incorporation of the stabilizer compositions according to the disclosure, and of optional further co-stabilizers and / or co-additives, into the organic materials to be stabilized can be carried out by known methods such as dry blending in the form of a powder, or wet mixing in the form of solutions, dispersions, or suspensions for example in an inert solvent, water, or oil. Such stabilizer compositions are preferably non- aqueous. The incorporation of co-active agent and UV stabilizers for the stabilizer composition, and optional further co-stabilizers and / or co-additives, into the organic material to be stabilized can be carried out by any suitable method known to those of skill in the art and include, for example, before or after molding, or also by applying the dissolved or dispersed stabilizer mixture to the organic material to be stabilized, with or without subsequent evaporation of the solvent or suspension / dispersion agent. They may be added directly into processing apparatus (e.g., extruders, internal mixers, kneaders etc.) as a dry mixture or powder, or as a solution or dispersion, or suspension or melt.

[0017] Individual components of the stabilizer compositions according to the disclosure, and optional further co-stabilizers and / or co-additives, can also be combined into organic materials such as polymers at a time before, during, or just after, for example, polymerization of corresponding monomers, or before crosslinking. In this context, thestabilizer compositions according to the disclosure can also be combined into the organic material to be stabilized in pure form (i.e., neat and directly to the resin) or encapsulated in waxes, oils or polymers.

[0018] Various additives can also be preblended (i.e., mixed together) for simple addition to an organic material to be stabilized. Individual components of the stabilizer composition, and optional further co-stabilizers and / or co-additives, can also be sprayed onto the organic material to be stabilized. They are able to dilute other conventional additives or their melts so that they can also be sprayed together with these additives onto the materials to be stabilized. Addition by spraying during the deactivation of any polymerization catalysts can be particularly advantageous as the steam evolved can be used for deactivation of the catalyst. In the case of spherically polymerized polymers, for example, it may be advantageous to apply individual additive components of the stabilizer composition optionally together with other additives, by spraying.

[0019] Accordingly, in one aspect the disclosure provides stabilizer compositions having a stabilizing amount of an ultraviolet light absorber (UVA) selected from the group consisting of orthohydroxyphenyl triazine compounds; orthohydroxybenzophenone compounds; orthohydroxyphenyl benzotriazole compounds; benzoxazinone compounds; and mixtures thereof; and from 1 wt.% to 99 wt. % of a co-active agents based on the total weight of the stabilizer composition. In embodiments, the stabilizer compositions also include a stabilizing amount of both a secondary and tertiary hindered amine light stabilizer (HALS); an alkoxylated alcohol; an antioxidant selected from hindered phenol, phosphite, phosphonite or any mixture thereof; and optionally a hindered benzoate.

[0020] Reference has been made to this point to the stabilizer composition of the disclosure as a “neat” composition (i.e., not diluted or mixed with other substances) which can optionally include further UV stabilizers, co-stabilizers, and / or co-additives. In another aspect, however, embodiments also include masterbatch concentrates having a stabilizer composition as described in any embodiment herein, and an organic material that is identical to or compatible with an organic material to be stabilized. In this context, the organic material identical to or compatible with the organic material to be stabilized actsas a carrier vehicle of the stabilizer compositions described herein, which is then admixed with the organic material to be stabilized. While the amount of stabilizer composition present as a portion 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 can be present at from 30 wt. % to 80 wt. %; or from 40 wt. % to 75 wt. % of the total weight of masterbatch concentrate.

[0021] Stabilizer Composition

[0022] As discussed above, stabilizer compositions according to one or more embodiments include an ultraviolet light absorber (UVA) selected from the group consisting of orthohydroxyphenyl triazine compounds, orthohydroxybenzophenone compounds, orthohydroxyphenyl benzotriazole compounds, benzoxazinone compounds, and mixtures thereof; secondary and tertiary hindered amine light stabilizers (HALS); an alkoxylated alcohol; an antioxidant selected from hindered phenol, phosphite, phosphonite or any mixture thereof; and optionally a hindered benzoate.

[0023] UV Absorber

[0024] With regard to the UV stabilizer system of the stabilizer composition, orthohydroxyphenyl triazines are an effective class of triazines for use in the stabilizer compositions.

[0025] Orthohydroxyphenyl triazines 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 orthohydroxyphenyl triazines compounds of which are incorporated herein by reference. Particularly preferred orthohydroxyphenyl triazines include 2-(2’-hydroxyphenyl)-l,3,5-triazine compounds according to Formula (I):R34-4 whereinR34and R35are the same or different and are independently chosen from: a C6-C10aryl group, wherein the C6-C10aryl group is optionally substituted at from 1 to 3 substitutable positions with one or more group chosen from OH, halogen, C1-C12alkyl, C1-C12alkoxy, C1-12alkoxyester, C2-12alkanoyl, or phenyl, wherein the phenyl is optionally substituted at from 1 to 3 substitutable positions with one or more group chosen from: hydroxyl, halogen, C1-12alkyl, C1-12alkoxy, C1-12alkoxyester, or C2-12alkanoyl; mono- or di-C1-C12hydrocarbyl-substituted amino;C2-C12alkanoyl;C1-C12alkyl;C1-C10acyl; orC1-C10alkoxyl; andR36is a substituent that is the same or different at from 0 to 4 positions of the phenoxy portion of Formula (I) and is independently chosen from hydroxyl, halogen, C1-C12alkyl, C1-C12alkoxy, C1-C12alkoxyester, C2-C12alkanoyl; phenyl; or C1-C12acyl.

[0026] Commercially available orthohydroxyphenyl triazines include, but are not limited to, those under the trade names CYASORB® UV-1164 (available from Cytec Industries Inc., Woodland Park, NJ); TINUVIN® 1577FF or TINUVIN® 400 (available from BASF, Ludwigshafen, Germany). In certain embodiments the orthohydroxyphenyl triazine compound of the stabilizer composition includes, but is not limited to, one or more of the following compounds:4.6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine; 2-(4,6-Diphenyl-l, 3, 5-triazin-2-yl-)-5-((hexyl)oxyl -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-butyloxyphenyl)-6-(2,4-bis-butyloxyphenyl)-.s-tri azine (TRIAZINE™ 460);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- tri azine;2.4-bis[2-hydroxy-4-(2 -hydroxy ethoxy)phenyl]-6-(4-bromophenyl)-s-tri azine;2.4-bis[2 -hydroxy -4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-tri azine;2.4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;2.4-bis(4-biphenylyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-s- tri azine;2.4-bis(4-biphenylyl)-6-[2 -hydroxy -4-(2-ethylhexyl oxy )phenyl]-s-tri azine;2-phenyl-4-[2 -hydroxy -4-(3-sec-butyloxy -2 -hydroxy propyl oxy )phenyl]-6-[2-hy droxy-4- (3-sec-amyloxy-2-hydroxypropyloxy)phenyl]-s-tri azine;2.4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(- 3-benzyloxy-2- hydroxypropyloxy)phenyl]-s-tri azine;2.4-bis(2 -hydroxy -4-n-butyloxyphenyl)-6-(2,4-di-n-butyloxyphenyl)-s-tri azine;2.4-bis(2,4-dimethylphenyl)-6-[2 -hydroxy -4-(3-nonyl oxy -2-hydroxypropyloxy)-5-a- cumyl phenyl] -s-tri azine;2.4-bis(2,4-dimethylphenyl)-6-[2 -hydroxy -4-[(octyloxycarbonyl)ethylideneoxy]phenyl]- .s-tri azine (TINUVIN™ 479);methyl enebis-{2, 4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butyloxy-2- hydroxypropoxy)phenyl]-s-tri azine; methylene bridged dimer mixture bridged in the 3:5', 5:5' and 3:3' positions in a 5:4:1 ratio;2.4.6-tris(2 -hydroxy -4-isooctyloxycarbonyliso-propylideneoxy-phenyl)-s-tri azine;2.4.6-tris[2 -hydroxy -4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-.s-tri azine(TINUVIN™ 477);2,4,6,-tris(2-hydroxy-4-octyloxy-phenyl)-l,3,5-triazine;2.4-bis(2,4-dimethylphenyl)-6-(2 -hydroxy -4-hexyloxy-5-a-cumylphenyl)-s-tri azine;2.4-bis[2 -hydroxy -4-(2 -hydroxy -4-(2 -hydroxyethoxy )phenyl]-6-(2, 4-dimethylphenyl)-.s- tri azine;2-(2, 4, 6-trimethylphenyl)-4,6-bis[2 -hydroxy -4-(3 -butyl oxy-2- hydroxypropyloxy)phenyl]-s-tri azine;2.4.6-tris[2 -hydroxy -4-(3-sec-butyloxy-2-hydroxypropyloxy)-phenyl]-s-tri azine; 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-tri azine;4.6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-isooctyloxyphenyl)-.s-tri azine (CYASORB™ UV-1164L); or4.6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine.

[0027] Other UVAs that are suitable for use in the compositions described herein include one or more of orthohydroxybenzophenones, orthohydroxyphenylbenzotriazoles, oxanilides, cyanoacrylates, or benzoxazinone compounds. In some embodiments, the UVA component of the stabilizer composition includes orthohydroxytriazines, orthohydroxybenzophenones, orthohydroxyphenyl benzotriazoles, or benzoxazinones individually. In other embodiments, the UVA component includes a combination of two or more of such UVA compounds. Orthohydroxybenzophenones, orthohydroxybenzotriazles, and benzoxazinones are also well known to those skilled inthe art of stabilizer additive technology. Their suitability for use as a component of stabilizer compositions has been previously disclosed and treated 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 benzophenones, benzotriazoles, and benzoxazinones of which are incorporated herein by reference as suitable for use with the stabilizer compositions of the instant disclosure.

[0028] Some other non-limiting examples of orthohydroxybenzophenones, or 2- hydroxybenzophenones, for use with the stabilizer compositions contemplated herein include any one or more of 2-hydroxy-4-methoxybenzophenone (commercially available from Cytec Industries Inc. as CYASORB® UV-9); 2,2’-dihydroxy-4- methoxybenzophenone (commercially available from Cytec Industries Inc. as CYASORB® UV-24); 2-hydroxy-4-octyloxybenzophenone (commercially available from Cytec Industries Inc. as CYASORB® UV-531); 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'-di ethoxybenzophenone; 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'-di chlorobenzophenone; 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'-tertiary 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'-di ethoxybenzophenone; 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.

[0029] Some other non-limiting examples of orthohydroxyphenyl benzotriazoles useful in the UVA component of the stabilizer compositions described herein include any one or more of those commercially available from Cytec Industries Inc. (e.g., CYASORB® 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 (commercially available from Cytec Industries Inc. as CYASORB® UV-2337); 2-(3',5'-bis(a,a-dimethylbenzyl)-2'- hydroxyphenyl)benzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2- octyl oxy carbonylethyl)phenyl)benzotriazole; 2,2'-methylene- bis[4-(l, 1,3,3- tetramethylbutyl)-6-benzotriazole-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'-(a,a-dimethylbenzyl)-5'-(l,l,3,3-tetramethyl- butyl)phenyl]benzotriazole;5-trifluoromethyl-2-(2-hydroxy-3-a-cumyl-5- tert- octylphenyl)-2H-benzotriazole; 2-(2'-hydroxy-5'-(2- hydroxyethyl)phenyl)benzotriazole; 2-(2'-hydroxy-5'-(2-methacryloyl oxy ethyl)phenyl)benzotriazole; 2-(2'-hydroxy-3'-tert- butyl-5'- methylphenyl)-5-chlorobenzotriazole (TINUVIN™ 326); 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; or 2-(2'- hydroxy-3'-di-tert- butylphenyl)-benzotriazole.

[0030] Non-limiting examples of benzoxazinones useful in the UVA portion of the stabilizer compositions described herein include any one or more chosen from 2-methyl- 3,l-benzoxazin-4-one; 2-butyl-3,l-benzoxazin-4-one; 2-phenyl-3,l-benzoxazin-4-one; 2-(l- or 2-naphthyl)-3,l-benzoxazin-4-one; 2-(4-biphenyl)-3,l-benzoxazin-4-one; 2-p- nitrophenyl-3,l-benzoxazin-4-one; 2-m-nitrophenyl-3,l-benzoxazin-4-one; 2-p- benzoylphenyl-3, l-benzoxazin-4-one; 2-p-methoxyphenyl-3, l-benzoxazin-4-one; 2-0- methoxyphenyl-3,l-benzoxazin-4-one; 2-cyclohexyl-3,l-benzoxazin-4-one; 2-p-(or m- )phthalimidephenyl-3, l-benzoxazin-4-one; N-phenyl -4-(3, l-benzoxazin-4-one-2- yl)phthalimide; N-benzoyl-4-(3,l-benzoxazine-4-one-2-yl)aniline; N-benzoyl-N- methyl-4-(3,l-benzoxazin-4-one-2-yl)-aniline; 2-[p-(N-phenylcarbamonyl)phenyl]-3,l- benzoxazin-4-one; 2-[p-(N-phenyl N-methylcarbamoyl)phenyl]-3,l-benzoxazin-4-one; 2,2'-bis(3,l-benzoxazin-4-one); 2,2'-ethylenebis(3,l-benzoxazin-4-one); 2,2'- tetramethylenebis(3,l-benzoxazin-4-one); 2,2'-hexamethylenebis(3,l-benzoxazin-4- one); 2,2'-decamethylenebis(3,l-benzoxazin-4-one); 2,2'-p-phenylenebis(3,l- benzoxazin-4-one); 2,2'-m-phenylenebi s(3 , 1 -benzoxazin-4-one); 2, 2' -(4,4'- diphenylene)bis(3,l-benzoxazin-4-one); 2,2'-(2,6-or l,5-naphthalene)bis(3,l- benzoxazin-4-one); 2,2'-(2-methyl-p-phenylene)bis(3,l-benzoxazin-4-one); 2,2'-(2- nitro-p-phenylene)bis(3,l-benzoxazin-4-one); 2,2'-(2-chloro-p-phenylene)bis(3,l- benzoxazin-4-one); 2,2'-(l,4-cyclohexylene)bis(3,l-benzoxazin-4-one); N-p-(3,l- benzoxazin-4-on-2-yl)phenyl; 4-(3,l-benzoxazin-4-on-2-yl)phthalimide; N-p-(3,l- benzoxazin-4-on-2-yl)benzoyl; 4-(3,l-benzoxazin-4-on-2-yl)aniline; 1 ,3,5-tri(3, 1 -benzoxazin-4-on-2-yl)benzene; l,3,5-tri(3,l-benzoxazin-4-on-2-yl)naphthalene; or2,4,6-tri(3,l-benzoxazin-4-on-2-yl)naphthalene.

[0031] UV absorbers may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 0.25 wt. %, 0.5 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0032] Inorganic UV Blocker

[0033] Stabilizer compositions according to one or more embodiments may further comprise an inorganic UV blocker. Suitable inorganic UV blockers may be titanium oxide, zinc oxide, cerium oxide, barium sulfate, or any combinations thereof. Inorganic UV blockers may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.01, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, or 1.0 wt. % to an upper limit of 1.0, 2.0, 3.0, 4.0 or 5.0 wt. %, where any lower limit may be used in combination with any suitable upper limit.

[0034] Hindered Amine Light Stabilizer (HALS)

[0035] As previously discussed, HALS compounds scavenge free radicals formed in polymeric materials when exposed to UV light and are more effective as a combination of a secondary and a tertiary HALS than when UVAs are used with a lone HALS. The benefits imparted 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, which teachings are incorporated herein by reference. Accordingly, in certain embodiments the stabilizer compositions described herein include a stabilizing amount of at least one secondary and at least one tertiary HALS compound that includes a functional group according to Formula (II):whereinR31is chosen from: hydrogen (for secondary HALS); or (for tertiary HALS) OH; C1-C20hydrocarbyl; —CH2CN; C1-C12acyl; or C1-C18alkoxy; R38is chosen from: hydrogen; or C1-C8hydrocarbyl; and each of R29, R30, R32, and R33is independently chosen from C1-C20hydrocarbyl, or R29and R30and / or R32and R33taken together with the carbon to which they are attached form a C5-C10cycloalkyl; ora functional group according to Formula (IIa): whereinm is an integer from 1 to 2; R39is chosen from: hydrogen; OH; C1-C20hydrocarbyl; —CH2CN; C1-C12acyl; or C1-C18alkoxy; andeach of G1-G4is independently chosen from C1-C20hydrocarbyl.

[0036] Exemplary HALS compounds contemplated for use as a component of the stabilizer compositions described herein can include one or more of those commercially available from Cytec Industries Inc. such as mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6- tetramethylpiperidine (e.g., CYASORB® UV-3853), or bis(2,2,6,6-tetramethylpiperidin- 4-yl) sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate; bis(l,2,2,6,6- pentamethylpiperidin-4-yl)sebacate; bis(l-octyloxy-2,2,6,6-tetramethylpiperidin-4- yl)sebacate; bis(l,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4- hydroxybenzylmal onate; a condensate of 1 -(2 -hydroxy ethyl)-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 dodecanate; l,2,2,6,6-pentamethylpiperidin-4-yl stearate; l,2,2,6,6-pentamethylpiperidin-4-yl dodecanate; a 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(l,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-l,3,8-triazaspiro[4.5]decan-2,4-dione; bis(l-octyloxy-2, 2,6,6- tetramethylpiperidyl)sebacate; bis(l-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4- morpholino-2,6-dichloro-l,3,5-triazine (commercially available from Cytec Industries Inc. as CYASORB® UV-3346); a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin- 4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-l,3,5-triazine, methylated (commercially available from Cytec Industries Inc. as CYASORB® UV-3529); a condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-l,3,5- triazine and l,2-bis(3-aminopropylamino)ethane; a condensate of 2-chloro-4,6-bis(4-n- butylamino-l,2,2,6,6-pentamethylpiperidyl)-l,3,5-triazine and l,2-bis-(3- aminopropylamino)ethane; 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-l,3,8- triazaspiro[4.5]decane-2, 4-dione; 3-dodecyl-l-(2,2,6,6-tetramethylpiperidin-4- yl)pyrrolidin-2, 5-dione; 3 -dodecyl- l-(l-ethanoyl -2,2,6, 6-tetramethyl piperidin-4- yl)pyrrolidin-2, 5-dione; 3-dodecyl-l-(l,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; a mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine; a mixture of 4-hexadecyloxy- and 4-stearyloxy-l,2,2,6,6-pentamethylpiperidine; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4- cyclohexylamino-2,6-dichloro-l,3,5-triazine; a condensate of l,2-bis(3- aminopropylamino)ethane, 2,4,6-trichloro-l,3,5-triazine and 4-butylamino-2, 2,6,6- tetramethylpiperidine; 2-undecyl-7,7,9,9-tetramethyl-l-oxa-3,8-diaza-4- oxospiro[4.5]decane; oxo-piperanzinyl-triazines; a reaction product of 7, 7,9,9- tetramethyl-2-cycloundecyl-l-oxa-3,8-diaza-4-oxospiro[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, tetrakis(l, 2,2,6, 6-pentamethyl-4- piperidinyl)ester; 1,2,3,4-butanetetracarboxylic acid, l,2,2,6,6-pentamethyl-4-piperdinyl tridecyl ester; 1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyl 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-diethanol,l,2,2,6,6-pentamethyl-4-piperdinyl ester; 1,2,3,4-butanetetracarboxylic acid, polymer with 2,2,6,6-tetramethyl-2,4,8,10- tetraoxaspiro[5.5]-undecane-3,9-diethanol, 2,2,6,6-tetramethyl-4-piperdinyl ester; bis(l- undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate; l-(2-hydroxy-2- methylpropoxy)-2,2,6,6-tetramethyl-4-piperdinol; l-(2-hydroxy-2-methylpropoxy)-4- octadecanoyloxy-2,2,6,6-tetramethylpiperidine; l-(4-octadecanoyloxy-2,2,6,6- tetramethylpiperidin- 1 -yloxy)-2-octadecanoyloxy-2-methylpropane; 1 -(2- hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol; a reaction product of l-(2- hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol and dimethyl succinate; 2, 2, 4, 4- tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one; the ester of 2, 2,6,6- tetramethyl-4-piperidinol with higher fatty acids; 3-dodecyl-l-(2,2,6,6-tetramethyl-4- piperidyl)pyrrolidine-2, 5-dione; lH-Pyrrole-2, 5-dione, 1-octadecyl-, polymer with (1- methylethenyl)benzene and l-(2,2,6,6-tetramethyl-4-piperidinyl)-lH-pyrrole-2,5-dione; piperazinone, l,r,l"-[l,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,l- ethanediyl]]tris[3,3,5,5-tetramethyl-; piperazinone, l,l',l"-[l,3,5-triazine-2,4,6- triyltris[(cyclohexylimino)-2, 1 -ethanediyl ]]tris [3, 3,4,5, 5-pentamethyl-; the reaction product of 7,7,9,9-tetramethyl-2-cycloundecyl-l-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; the condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4- yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-l,3,5-triazine; the condensate of l,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-l,3,5-triazine and 4- butylamino-2,2,6,6-tetramethylpiperidine; the condensate of N, N'-bis(2, 2,6,6- tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-di chi oro-1, 3,5- triazine; the condensate of 2-chloro-4,6-bis(4-n-butylamino-2, 2,6,6- tetramethylpiperidyl)-l,3,5-triazine and l,2-bis(3-aminopropylamino)ethane; the condensate of 2-chloro-4, 6-bis(4-n-butylamino-l, 2,2,6, 6-pentamethylpiperidyl)-l, 3,5- triazine and l,2-bis-(3-aminopropylamino)ethane; 2-[(2-hydroxyethyl)amino]-4,6-bis[N- (1 -cyclohexyl oxy-2, 2, 6, 6-tetramethylpiperidin-4-yl)butylamino-l, 3, 5-tri azine; propanedioic acid, [(4-methoxyphenyl)-methylene]-bis-(l ,2,2,6,6-pentamethyl-4- piperidinyl) ester; tetrakis(2, 2,6, 6-tetramethylpiperidin-4-yl)-l, 2,3,4- butanetetracarboxylate; benzenepropanoic acid, 3,5-bis(l,l-dimethylethyl)-4-hydroxy-, l-[2-[3-[3, 5-bis(l,l-dimethylethyl)-4-hydroxyphenyl]-l-oxopropoxy]ethyl]-2, 2,6,6- tetramethyl-4-piperidinyl ester; N-(l -octyl oxy -2,2,6, 6-tetramethylpiperidin-4-yl)-N'- dodecyloxalamide; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1,5- dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(l, 2,2,6, 6-pentamethyl-4- piperidinyl): l,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2, 2,6,6- tetramethyl-4-piperidinyl); the condensate of l-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4- hydroxypiperidine and succinic acid; 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; 1,2,3,4-butanetetracarboxylic acid, l,2,2,6,6-pentamethyl-4-piperidinyl tridecyl ester; tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-l,2,3,4-butanetetracarboxylate;1.2.3.4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyl tridecyl ester; tetrakis(l,2,2,6,6-pentamethylpiperidin-4-yl)-l,2,3,4-butanetetracarboxylate; mixture of2.2.4.4-tetramethyl-21-oxo-7-oxa-3 ,20-diazaspiro(5.1.11 ,2)-heneicosane-20-propanoic acid-dodecylester and 2,2,4,4-tetramethyl-21 -oxo-7-oxa-3 ,20-diazaspiro(5.1.11.2)- heneicosane-20-propanoic acid-tetradecylester; lH,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(r,2',2',6',6'-pentamethyl-4,4'-piperidinyl)]siloxane; copolymer of methylmethacrylate with ethyl acrylate and 2,2,6,6-tetramethylpiperidin-4- yl acrylate; copolymer of mixed C20 to C24 alpha-olefins and (2, 2,6,6- tetramethylpiperidin-4-yl)succinimide; 1,2,3,4-butanetetracarboxylic acid, polymer with P,P,P',P'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol, 1, 2, 2,6,6- pentamethyl-4-piperidinyl ester; 1,2,3,4-butanetetracarboxylic acid, polymer with P,P,P',P'-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol, 2, 2,6,6- tetramethyl-4-piperidinyl ester copolymer; 1,3-benzenedicarboxamide, N, N'-bis(2, 2,6,6- tetramethyl-4-piperidinyl; l,l'-(l,10-dioxo-l,10-decanediyl)-bis(hexahydro-2,2,4,4,6- pentamethylpyrimidine; ethane diamide, N-(l-acetyl-2,2,6,6-tetramethylpiperidinyl)-N'- dodecyl; formamide, N,N'-l,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl); D- glucitol, l,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidinylidene)-; 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-piperidinyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-; 7- oxa-3,20-diazadispiro[5.1.11 ,2]heneicosane-20-propanoic acid, 2,2,4,4-tetramethyl-21- oxo-, dodecyl ester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-P-aminopropionic acid 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- l-(l,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; 3-dodecyl-l-(l-ethanoyl-2.2.6.6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione; bis(2, 2,6,6- tetramethylpiperidin-4-yl)succinate; bis(l,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzylmalonate; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 1, l'-(l,2-ethanediyl)bis(3,3,5,5-tetramethylpiperazinone); 4-benzoyl-2.2.6.6-tetramethylpiperidine; 4-stearyloxy-2,2,6,6-tetramethylpiperidine; bis(l,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-l,3,8-triazaspiro[4.5]decan-2,4-dione; bis(l -octyloxy-2, 2, 6, 6- tetramethylpiperidyl)sebacate; bi s( 1 -octyloxy-2, 2,6, 6-tetramethylpiperidyl)succinate; 8- acetyl-3-dodecyl-7,7,9,9-tetramethyl-l,3,8-triazaspiro[4.5]decane-2,4-dione; 3-dodecyl- l-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione; 3-dodecyl-l-(l-ethanoyl-2.2.6.6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione; 3-dodecyl-l-(l,2,2,6,6- pentamethylpiperidin-4-yl)pyrrolidine-2, 5-dione; a mixture of 4-hexadecyloxy- and 4- stearyloxy-2,2,6,6-tetramethylpiperidine; 2-undecyl-7,7,9,9-tetramethyl-l-oxa-3,8- diaza-4-oxospiro[4.5]decane; l,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid, bis(2,2,6,6-tetramethyl-4-piperidinyl) and l,5-dioxaspiro{5,5}undecane-3,3- dicarboxylic acid, bis(l,2,2,6,6-pentamethyl-4-piperidinyl); N1-(P-hydroxyethyl)3,3- pentamethylene-5,5-dimethylpiperazin-2-one; N'-tert-octyl-3,3,5,5-tetramethyl- diazepin-2-one; N1-tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepin-2-one; N1-tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one; trans- 1,2-cy cl ohexane- bis-(N1-5,5-dimethyl-3,3-pentamethylene-2-piperazinone; trans- 1,2-cy cl ohexane-bis- (N1-3,3,5,5-dispiropentamethylene-2-piperazinone); N^isopropyl-l^-diazadispiro- (3,3,5,5)pentamethylene-2-piperazinone; NMsopropyl-l^-diazadispiro-S^- pentamethylene-5,5-tetramethylene-2-piperazinone; NMsopropyl-5,5-dimethyl-3,3- pentamethylene-2-piperazinone; trans-l,2-cyclohexane-bis-N1-(dimethyl-3,3- pentamethylene-2-piperazinone); N'-octyl-5,5-dimethyl-3,3-pentamethylene- l,4- diazepin-2-one; N1-octyl-l,4-diazadispiro-(3,3,5,5)pentamethylene-l,5-diazepin-2-one; TINUVIN® XT 200 (available from BASF); or TINUVIN® NOR 371 (available from BASF).

[0037] Secondary Hindered Amine Light Stabilizer (sec. -HALS)

[0038] Preferred secondary hindered amine light stabilizers (sec. -HALS) may be selected from bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; a mixture of2.2.6.6- tetramethylpiperidin-4-yl esters of C12-C21 saturated and Cis unsaturated fatty acids (CYASORB™ UV-3853); bis(l,2,2,6,6-pentamethylpiperidin-4-yl) sebacate (Tinuvin 770); 2,2,6,6-tetramethylpiperidin-4-yl stearate; 2,2,6,6-tetramethylpiperidin-4- yl dodecanate; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4- yl)hexamethylenediamine and 4- / e / 7-octylamino-2,6-dichloro- l ,3,5-triazine (CHIMASSORB™ 944); tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate; 4- stearyloxy-2,2,6,6-tetramethylpiperidine; a condensate of N, N'-bis(2, 2,6,6- tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-di chi oro-1, 3,5- triazine (CYASORB™ UV-3346); a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine, N-butyl-2,2,6,6-tetramethyl-4- piperidinamine, di-w-butyl amine, and 2,4,6-trichloro-l,3,5-triazine (CHIMASSORB™ 2020); a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4- yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-l,3,5-triazine; a condensate of l,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-l,3,5-triazine, and 4- butylamino-2,2,6,6-tetramethylpiperidine; a condensate of N, N'-bis(2, 2,6,6- tetramethylpiperidin-4-yl)hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro- 1,3,5-triazine; tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-l,2,3,4- butanetetracarboxylate; 1,2,3,4-butanetetracarboxylic acid, 2, 2,6,6- tetramethylpiperidinyl-4-yl tridecyl ester; formamide, N,N'-l,6-hexanediylbis[N- (2,2,6,6-tetramethylpiperidin-4-yl) (UVINUL™ 4050).

[0039] Secondary Hindered Amine Light Stabilizer (sec. -HALS) may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 2.5 wt. %, 5 wt. %, or 10 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0040] Tertiary Hindered Amine Light Stabilizer (tert. -HALS)

[0041] Preferred tertiary hindered amine light stabilizers (tert. -HALS) may be selected from bis(l,2,2,6,6-pentamethylpiperidin-4-yl)sebacate; bis(l, 2,2,6, 6-pentamethyl-4- piperidinyl); bis(l,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl 3,5-di-tert-butyl-4- hydroxybenzylmal onate; a condensate of 1 -(2 -hydroxy ethyl)-2, 2,6, 6-tetramethyl-4- hydroxypiperidine and succinic acid; a mixture of bis(l, 2,2,6, 6-pentamethylpiperidin-4- yl) sebacate and methyl l,2,2,6,6-pentamethylpiperidin-4-yl sebacate (TINUVIN™ 292); bis(l,2,2,6,6-pentamethylpiperidin-4-yl) / / -butyl 3,5-di-ZerLbutyl-4- hydroxybenzylmal onate; a condensate of 1 -(2 -hydroxy ethyl)-2, 2,6, 6-tetramethyl-4- hydroxypiperidine and succinic acid (TINUVIN™ 622); 1, 2,2,6, 6-pentamethylpiperidin- 4-yl stearate; l,2,2,6,6-pentamethylpiperidin-4-yl dodecanate; a condensate of N,N'- bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6- dichloro-l,3,5-triazine, methylated (CYASORB™ UV-3529); a condensate of 2-chloro-4,6-bis(4- / / -butylamino- l ,2,2,6,6-pentamethylpiperidyl)- l ,3,5-triazine and 1 ,2-bis-(3- aminopropylamino)ethane; tetrakis(l,2,2,6,6-pentamethylpiperidin-4-yl)-l,2,3,4- butanetetracarboxylate; a mixture of 4-hexadecyloxy- and 4-stearyloxy- 1,2, 2,6,6- pentamethylpiperidine; l,5,8,12-tetrakis[4,6-bis(N-butyl-N-l,2,2,6,6-pentamethyl-4- piperidylamino)-l,3,5-triazin-2-yl]-l,5,8,12-tetraazadodecane (Chimassorb 119); is 1,2,3,4-butanetetracarboxylic acid, polymer with P, P, P'-tetramethyl-2,4,8,10- tetraoxyspiro[5,5]undecane-3,9-diethanol, l,2,2,6,6-pentamethyl-4-piperidinyl ester (ADK STAB LA63).

[0042] Tertiary Hindered Amine Light Stabilizer (tert. -HALS) may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 2.5 wt. %, 5 wt. %, or 10 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0043] The weight ratio of the sec. -HALS to tert. -HALS can vary depending on the components within the composition, the type of material to be stabilized, and / or the application of the stabilized material. In one or more embodiments, the ratio of the sec.- HALS to tert. -HALS can be present at a weight ratio from 10: 1 to 1 : 10, from 8: 1 to 1 :8, from 5: 1 to 1 :5, or from 2: 1 to 1 :2.

[0044] Alkoxylated Alcohol

[0045] Stabilizer compositions according to one or more embodiments comprise an alkoxylated alcohol. In certain embodiments, the alkoxylated alcohol is according to Formula (III):R— (OCHR’CH2)y— OR” (III) wherein R is a hydrocarbyl group having from 12 to 60 carbon atoms; R’ is chosen from H or C1-C4 alkyl; R” is chosen from H; and y is an integer from 1 to 100.

[0046] The term "hydrocarbyl" as used herein is a generic term encompassing aliphatic, alicyclic and aromatic groups having an all-carbon backbone and consisting of carbon and hydrogen atoms. In certain cases, as defined herein, one or more of the carbon atomsmaking up the carbon backbone may be optionally replaced or interrupted by a specified atom or group of atoms, such as by one or more heteroatom of N, O, and / or S. Examples of hydrocarbyl groups include alkyl, cycloalkyl, cycloalkenyl, carbocyclic aryl, alkenyl, alkynyl, alkylcycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, and carbocyclic aralkyl, alkaryl, aralkenyl and aralkynyl groups.

[0047] Such hydrocarbyl groups can also be optionally substituted by one or more substituents as defined herein. The examples and preferences expressed below also apply to each of the hydrocarbyl substituent groups or hydrocarbyl -containing substituent groups referred to in the various definitions of substituents for compounds of the formulas described herein unless the context indicates otherwise.

[0048] Preferred non-aromatic hydrocarbyl groups are saturated groups such as alkyl and cycloalkyl groups. Generally, and by way of example, the hydrocarbyl groups can have up to one hundred carbon atoms, unless the context requires otherwise. Hydrocarbyl groups with from 1 to 60 carbon atoms are preferred, with 1 to 36 carbons more preferred. Within the sub-set of hydrocarbyl groups, particular examples are C12-60 hydrocarbyl groups, C12-30 hydrocarbyl groups, C12-22 hydrocarbyl groups, C1-10 hydrocarbyl groups, or C1-4 hydrocarbyl groups, although any individual value, range, or combination of values selected from Ci through Ceo hydrocarbyl groups is contemplated by the inventors as if specifically recited herein.

[0049] As indicated by the context used herein, the term “alkyl” is intended to include linear, branched, or cyclic hydrocarbon structures and combinations thereof. Lower alkyl refers to alkyl groups of from 1 to 6 carbon atoms. Examples of lower alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, s-and t-butyl, pentyl, hexyl, or cyclohexyl and the like. Preferred alkyl groups include those of C36 or below.

[0050] Accordingly, in certain embodiments, R of Formula (III) can be an alkyl group having from 12 to 30 carbon atoms. In other embodiments, R can contain from 12 to 22 carbon atoms, and ideally from 12 to 18 carbons, or 12 to 15 carbons.

[0051] The terms “alkoxy,” “alkoxyalkyl,” or “alkoxylated” as used herein refer to groups ofT1from 1 to 20 carbon atoms of a straight, branched, or cyclic configuration, or combinations thereof either 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, cyclopropyloxy, cyclohexyloxy and the like.

[0052] Thus, in certain embodiments, or in the same embodiments as those previously described with respect to Formula (III), R’ can be methyl or ethyl. In still other embodiments, R’ can be H.

[0053] Accordingly, in certain embodiments the stabilizer compositions according to the present disclosure can include a co-active agent that can be alkoxylated with one or more alkoxide. In some embodiments, the co-active agent according to Formula (III) can be ethoxylated. In other embodiments, the co-active agent according to Formula (III) can be propoxylated. In the same or other embodiments, the co-active agent according to Formula (III) can include a mixture of ethoxylated alcohols and propoxylated alcohols, or can be an alcohol that is both ethoxylated and propoxylated.

[0054] While the degree of alkoxylation (i.e., the number of ethoxy and / or propoxy groups in the co-active agent) can vary amongst co-active agents, the degree of alkoxylation contemplated by the inventors for the co-active agents described herein ranges from 1 to 100. In certain embodiments, the degree of alkoxylation given by “y” of the co-active agent according to Formula (III) can range from 1 to 75. In other embodiments, the degree of alkoxylation can range from 2 to 25, or from 2 to 12.

[0055] In any of the embodiments discussed above for the co-active agent according to Formula (III), the co-active agent can be an alcohol, such as when R” is H.

[0056] While the alkoxylated alcohols according to Formula (III) can be made by known methods already available to those of ordinary skill in the art, there are also a host of such compounds presently commercially available. Such commercially available alkoxylated compounds include, but are not limited to, any of the alkoxylated alcohols commercially available or known under the BRIJ® trade name (available from Sigma Aldrich, St. Louis, MO); JEECOL® (available from Jeen IntT Corp.); NOVEL® (available fromSasol Olefins & Surfactants, Hamburg, Germany); UNITHOX® Ethoxylates (available from Baker Hughes, Inc.); GENAPOL® (available from Clariant SE, Switzerland); HETOXOL® (available from Global Seven, Rockaway, NJ); and LEUNAPON® (available from Vantage Leuna, Germany). While the compounds can generally be in any form (i.e., liquid, solid, semi-solid, flake, pastille), solids or semi-solid forms are preferred.

[0057] In certain embodiments, the alkoxylated alcohol can be chosen from any one or more of diethylene glycol octadecyl ether (available as BRIJ® S2); triethylene glycol octadecyl ether (available as BRIJ® S3); polyoxyethylene (5) octadecyl ether (available as Steareth-5); polyoxyethylene (10) octadecyl ether (available as JEECOL® SA- 10); polyoxyethylene (2) oleyl ether (available as BRIJ® 93); polyoxyethylene docosyl ether (available as NOVEL® 22-4); polyoxyethylene (4) oleyl ether (available as HETOXOL® OL-4) or LEUNAPON™ F 1618-55 (C16-C18 alkyl alcohol ethoxylate).

[0058] Alkoxylated alcohol may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.001 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 0.25 wt. %, 0.5 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0059] The weight ratio of the tert. -HALS to alkoxylated alcohol can vary depending on the components within the composition, the type of material to be stabilized, and / or the application of the stabilized material. In embodiments, the ratio of the tert. -HALS or sec - HALS to alkoxylated alcohol can be present at a weight ratio from 100: 1 to 1 : 1, from 50: 1 to 25: 1, or from 10: 1 to 5: 1.

[0060] Co-additives

[0061] Suitable co-additives may be nucleating agents, fillers, metallic stearates, reinforcing agents, plasticizers, lubricants, rheology agents, catalysts, leveling agents, optical brighteners, anti-static agents, blowing agents, flame retardants, dyes, pigments, hindered benzoates, thioesters, hydroxylamines, antioxidants, hindered phenols, phosphites, phosphonites, benzofuranones, nitrones, and mixtures thereof. Examples of such co-additives include but are not limited to any of those disclosed in U.S. Publication Nos. 2004 / 0152807; 2009 / 0085252; 2012 / 0146257; and 2013 / 0145962, which are expressly incorporated herein by reference, or known to those skilled in the art.

[0062] Co-additives may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, or 1 wt. % to an upper limit of 1, 2, 3, 4, 5, 10, or 20 wt. %, where any lower limit may be used in combination with any suitable upper limit.

[0063] Hindered Benzoates or Benzamides

[0064] Suitable hindered benzoates or benzamides for use with the UVA portion of the stabilizer composition include those according to Formula (VI):wherein each of R21and R22is independently chosen from a C1-12 alkyl;T is chosen from O or NR24, where R24is H or a C1-30 hydrocarbyl; and R23is H or a C1-30 hydrocarbyl.

[0065] Preferred hindered benzoates can include any one or more of those commercially available from Cytec Industries Inc. such as hexadecyl-3, 5-di-tert-butyl-4- hydroxybenzoate (e.g., CYASORB® 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; behenylyl-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 -t-butyl-4-(3 , 5-di-t-butyl-4- hydroxyb enzoyl oxy)pheny 1 ] propi onate .

[0066] Hindered benzoates and / or benzamides may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 0.25 wt. %, 0.5 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0067] Hydroxylamines

[0068] Preferred hydroxylamines include, but are not limited to, any one or more of N,N- dihydrocarbylhydroxylamine chosen from: N,N-dibenzylhydroxylamine; N,N- diethylhydroxylamine; N,N-dioctylhydroxylamine; N,N-dilaurylhydroxylamine; N,N- didodecylhydroxylamine; N,N-ditetradecylhydroxylaamine; N,N- dihexadecylhydroxylamine; N,N-dioctadecylhydroxylamine; N-hexadecyl-N- tetradecylhydroxylamine; N-hexadecyl-N-heptadecylhydroxylamine; N-hexadecyl-N- octadecylhydroxylamine; N-heptadecyl-N-octadecylhydroxylamine; and N,N- di(hydrogenated tallow)hydroxylamine.

[0069] Hydroxylamines may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, or 0.1 wt. % to an upper limit of 0.25 wt. %, 0.5 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0070] Hindered Phenol

[0071] Preferred hindered phenols include, but are not limited to, any one or more of (l,3,5-Tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-l,3,5-triazine-2,4,6-(lH,3H,5H)- trione; l,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-l,3,5-triazine-2,4,6(lH,3H,5H)- trione; l,l,3-Tris(2’-methyl-4’-hydroxy-5’-t-butylphenyl)butane; Triethylene glycol bis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionate]; 4,4’-Thiobis(2-t-butyl-5- methylphenol); 2,2’-Thiodiethylene bis[3-(3- / -butyl-4-hydroxyl-5- methyl phenyl )propionate]; Octadecyl 3 -(3 ’- / -butyl -4’ -hydroxy-5 ’- methylphenyl)propionate; Tetrakismethylene(3- / -butyl-4-hydroxy-5-methylhydrocinnamate)methane; TV, TV ’-Hexamethylene bis[3-(3- / -butyl-4-hydroxy-5- methyl phenyl )propionamide]; Di(4-tertiarybutyl-3-hydroxy-2,6-dimethyl benzyl) thiodipropionate; and octadecyl 3,5-di-(tert)-butyl-4-hydroxyhydrocinnamate.

[0072] Hindered phenol may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, 0.1 wt. %, or 0.25 wt. % to an upper limit of 0.3 wt. %, 0.5 wt. %, 0.75 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0073] Organic Phosphite and Phosphonite

[0074] Preferred organic phosphites and phosphonites include, but are not limited to, any one or more of triphenyl phosphite; diphenyl alkyl phosphites; phenyl dialkyl phosphites; trilauryl phosphite; trioctadecyl phosphite; distearyl pentaerythritol phosphite; tris(2,4- di-tert-butylphenyl) phosphite; tris(nonylphenyl) phosphite; a compound of formulae (A), (B), (C), (D), (E), (F), (G), (H), (J), (K) and (L):(A),Z1(FL2-butyl-2-ethyl-l,3-propanediol 2,4,6-tri-t-butylphenol phosphite, bis-(2,6-di-t-butyl-4- methlphenyl) pentaerythritol diphosphite, 2-butyl-2-ethyl-l,3-propanediol 2,4-di- cumylphenol phosphite, 2-butyl-2-ethyl-l,3-propanediol 4-methyl-2,6-di-t-butylphenol phosphite, and bis-(2,4,6-tri-t-butyl-phenyl) pentaerythritol diphosphite, tris(2,4-di-tert- butylphenyl)phosphite (IRGAFOS® 168); Bis(2,4-dicumylphenyl)pentaerythritol diphosphite (DOVERPHOS® S9228); and tetrakis(2,4-di-tert-butylphenyl)4,4’- biphenylene-diphosphonite (IRGAFOS® P-EPQ).

[0076] Organic phosphite or phosphonite may be present in the stabilizer composition of the final polymeric article in an amount ranging from a lower limit of 0.005 wt. %, 0.01 wt. %, 0.05 wt.%, 0.1 wt. %, or 0.25 wt. % to an upper limit of 0.3 wt. %, 0.5 wt. %, 0.75 wt. %, or 1 wt. % where any lower limit may be used in combination with any suitable upper limit.

[0077] Organic Polymeric Material

[0078] Various nonliving organic materials suitable for stabilizing 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, polybutyl acrylates, polyacetals, polyacrylonitriles, polybutadienes, polystyrenes, acrylonitrile-butadiene- styrene, styrene acrylonitrile, acrylate styrene acrylonitrile, cellulosic acetate butyrate, cellulosic polymers, polyimides, polyamideimides, polyetherimides, polyphenylsulfides, polyphenyloxidepolysulfones, polyethersulfones, polyvinylchlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers(POE), aminoresin cross-linked polyacrylates and polyesters, polyisocyanate cross- linked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, drying and non-drying alkyd resins, alkyd resins, polyester resins, acrylate resins cross-linked with melamine resins, urea resins, isocyanates, isocyanurates, carbamates, epoxy resins, cross-linked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are cross-linked with anhydrides or amines, polysiloxanes, Michael addition polymers, amines, blocked amines with activated unsaturated and methylene compounds, ketimines with activated unsaturated and methylene compounds, polyketimines in combination with unsaturated acrylic polyacetoacetate resins, polyketimines in combination with unsaturated acrylic resins, coating compositions, radiation curable compositions, epoxymelamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

[0079] In certain embodiments, the nonliving organic material to be stabilized is a polyolefin. Polyolefins suitable for use with the stabilizer composition according to embodiments include, but are not limited to:

[0080] (A) Polymers of monoolefms, for example polyethylene, polypropylene, polyisobutylene, polybut-l-ene, and poly-4-methylpent-l-ene, polymers of di olefins such as polyisoprene or polybutadiene, as well as polymers of cycloolefins, for instance of cyclopentene or norbomene, polyethylene (which optionally can be crosslinked), for example 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 ultralow density polyethylene (ULDPE);

[0081] (B) Polyolefins, i.e. the polymers of monoolefms exemplified in (A), preferably polyethylene and polypropylene, can be prepared by different, and especially by the following, methods: i) radical polymerization (normally under high pressure and at elevated temperature); or ii) catalytic polymerization using a catalyst that normallycontains one or more than one metal of groups IVb, Vb, VIb or VIII of the Periodic Table. These metals usually have one or more than one ligand, typically oxides, halides, alcoholates, esters, ethers, amines, alkyls, alkenyls and / or aryls that may be either p- or s-coordinated. These metal complexes may be in the free form or fixed on substrates, typically on activated magnesium chloride, titanium(III) chloride, alumina or silicon oxide. These catalysts may be soluble or insoluble in the polymerization medium. The catalysts can be used by themselves in the polymerization or further activators may be used, typically metal alkyls, metal hydrides, metal alkyl halides, metal alkyl oxides or metal alkyloxanes, said metals being elements of groups la, Ila and / or Illa of the Periodic Table. The activators may be modified conveniently with further ester, ether, amine or silyl ether groups. These catalyst systems are usually termed Phillips, Standard Oil Indiana, Ziegler (-Natta), TNZ (DuPont), metallocene or single site catalysts (SSC);

[0082] (C) Mixtures of the polymers mentioned under (A), for example mixtures of polypropylene with polyisobutylene, polypropylene with polyethylene (for example PP / HDPE, PP / LDPE) and mixtures of different types of polyethylene (for example LDPE / HDPE); and

[0083] (D) Copolymers of monoolefms and diolefins with each other or with other vinyl monomers, for example ethyl ene / propylene copolymers, linear low density polyethylene (LLDPE) and mixtures thereof with low density polyethylene (LDPE), propylene / but-1- ene copolymers, propylene / isobutylene copolymers, ethylene / but-l-ene copolymers, ethyl ene / hexene copolymers, ethylene / methylpentene copolymers, ethyl ene / heptene copolymers, ethyl ene / octene copolymers, propyl ene / butadiene copolymers, isobutylene / isoprene copolymers, ethylene / alkyl acrylate copolymers, ethylene / alkyl methacrylate copolymers, ethylene / vinyl acetate copolymers and their copolymers with carbon monoxide or ethylene / acrylic acid copolymers and their salts (ionomers) as well as terpolymers of ethylene with propylene and a diene such as hexadiene, dicyclopentadiene or ethylidene-norbornene; and mixtures of such copolymers with one another and with polymers mentioned in (A) above, for example polypropylene / ethylene- propylene copolymers, LDPE / ethylene-vinyl acetate copolymers (EVA), LDPE / ethylene-acrylic acid copolymers (EAA), LLDPEZEVA, LLDPEZEAA andalternating or random polyalkylene / carbon monoxide copolymers and mixtures thereof with other polymers, for example polyamides.

[0084] Particularly preferred organic materials for stabilizing and providing articles of manufacture include polyolefin polymers such as i) polymers of monoolefms chosen from polyethylene, polypropylene, polyisobutylene, polybut-l-ene, or poly-4-methylpent-l- ene; ii) polymers of diolefins chosen from polyisoprene or polybutadiene; iii) polymers of cycloolefins chosen from cyclopentene or norbornene; iv) polyethylene chosen 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 ultralow density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) copolymers thereof; and viii) mixtures thereof.

[0085] In certain embodiments, the stabilizer composition can be present in the stabilized organic material as a stabilized polymer composition (e.g., in an article of manufacture) from 0.005 wt. % to 10.0 wt. % (i.e., any value from 0.01 wt. % to 10.0 wt. %, including any value therebetween). The stabilizer composition may be present in an amount ranging from a lower limit of 0.005 wt. %, 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. % to an upper limit of 2.0 wt. %; 2.5 wt. %; 3.0 wt. %; 3.5 wt.%; 4.0 wt. %; 4.5 wt. %; 5.0 wt. %; 7.5 wt. %; or 10.0 wt. %, where any lower limit may be used in combination with any suitable upper limit, based on the total weight of the stabilized organic material, and in some cases based on the number and type of stabilizing additives being added and / or the characteristics of the material to be stabilized.

[0086] Stabilized Polymer Composition Properties

[0087] Stabilized polymer compositions according to embodiments are more resistant to discoloration due to gas fading and thermal oxidation compared to a comparative polymercomposition wherein the comparative stabilizer composition does not include a combination of a secondary and a tertiary HALS stabilizer and an alkoxylated alcohol.

[0088] Stabilized polymer compositions according to embodiments may have an improved thermal aging resistance demonstrated by measurement of the yellow index (YI) and gas fade resistance demonstrated by measurement of the gas fade as delta E. Delta YI and delta E are the difference between samples measured before and after exposure. Yellowness Index (YI) and Delta E data were obtained using a Macbeth Color Eye Colorimeter as per the ASTM D2244-79 with 1” view and D65 / 100observer. For thermal aging test, plaques were placed inside a circulating air oven at a temperature of 80 °C and the yellowness index was measured at various time intervals. For Gas Fade Resistance test, samples plaques have been placed inside a rotary platform inside a Gas Fade instrument at a temperature of 57 °C developed by Syensqo.

[0089] Stabilized polymer compositions according to embodiments may have a thermal aging resistance delta YI of less than or equal to 3 at 250 hrs, or 20 at 500 hrs, or 65 at 850 hrs, or 75 at 1000 hrs; and / or a delta E of less than or equal to 3 at 250 hrs, or 10 at 500 hrs, or 30 at 850 hrs, or 35 at 1000 hrs.

[0090] Stabilized polymer compositions according to embodiments may have a gas fade resistance delta YI of less than or equal to 3.5 at 24 hrs, or 4.5 at 48 hrs, or 5 at 72 hrs; and / or a delta E of less than or equal to 1.5 at 24 hrs, or 2.1 at 48 hrs, or 2.3 at 72 hrs.

[0091] Process for Making Stabilized Articles

[0092] In another aspect, embodiments herein relate to processes for stabilizing an organic material subject to degradation and / or discoloration due to effects from light, oxygen, and / or heat, as well as the articles of manufacture thereby obtained. These processes are each achieved by adding before, during, or after processing a stabilizing amount of a stabilizer composition according to embodiments as described throughout the specification and claims to the organic material to be stabilized. In certain embodiments, the stabilizer composition can be added to the organic material to be stabilized as a neat composition. In other embodiments, a masterbatch concentrate as described herein canbe added to the organic material to be stabilized.

[0093] In certain aspects, embodiments described herein also provide processes for forming a stabilized article of manufacture, or for protecting an organic material from degradation due to the effects of light and / or heat from UV irradiation, by combining an organic material with a stabilizer composition as herein described. The process can further include shaping the organic material into an article of manufacture by industrial molding, extruding, molding, blowing, casting, thermoforming, or compacting the organic material into an article of manufacture, thereby forming a stabilized article of manufacture. Further, the organic material may be used in industrial fiber or tape making. In some embodiments, the process can include combining the organic material with a masterbatch concentrate as herein described.

[0094] Those of skill in the art will appreciate that the stabilizer compositions and processes are suitable for use with, and readily adapted to, any industrial polymeric molding process including, but not limited to, injection molding, rotomolding, blow molding, reel-to-reel molding, metal injection molding, compression molding, transfer molding, dip molding, gas assist molding, insert injection molding, micro molding, reaction injection molding, two shot injection molding, as well as any variations or combinations thereof.

[0095] In certain embodiments of processes for making stabilized article, the industrial molding process is rotomolding comprising the steps of: a) filling a mold with the stabilized polymer composition as defined above, b) rotating the mold around at least one axis while heating the mold in an oven, thereby fusing the composition and spreading it to the walls of the mold; c) cooling the mold; d) opening the mold; and e) removing the hollow article from the mold.

[0096] Examples

[0097] The following examples are provided to assist one skilled in the art to further understand certain embodiments of the present disclosure. These examples are intended for illustration purposes and are not to be construed as limiting the scope of the variousembodiments of the present disclosure.Table 1. Chemicals used

[0098] Various additive materials were dry blended with high density polyethylene (HDPE) from Nova Chemicals as per the Formulation in Table 2. The dry blended pellet and additive mixtures were processed using a twin screw extruder from Werner and Pfleiderer, ZSK-30 with a L / D of 24: 1 and the polymer strands were pelletized. Next, square plaques of 3 mm thickness were produced using an injection molder by Engel.

[0099] As discussed above, Yellowness Index (YI) data was obtained using a Macbeth Color Eye Colorimeter as per the ASTM D2244-79 with 1” view and D65 / 100observer and Color, delta E, was calculated from L*a*b* values obtained from before and after exposure. For thermal aging test, plaques were placed inside a circulating air oven at atemperature of 80 °C and the Yellowness Index was measured at various time intervals. For Gas Fade Resistance test, samples plaques have been placed inside a rotary platform inside a Gas Fade instrument at a temperature of 57 °C developed by Syensqo. For weathering test, sample plaques were placed inside a QUV-B 313 accelerated weathering tester by Q-Lab. The delta YI is the difference between Yellowness Indexes of sample measured before and after exposure. Lower Delta E and Delta YI indicates the lower color and lower yellowness development after the exposure.Table 2. HDPE Formulation with stabilizersTable 3. Thermal aging resistance of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant.

[0100] Results obtained from Table 3 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the delta yellowness index further reduced after exposing to air oxidativeaging at a temperature of 80 °C.Table 4. Thermal aging resistance of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant

[0101] Results obtained from Table 4 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the color (Delta E) further reduced after exposing to air oxidative aging at a temperature of 80 °C.Table 5. Thermal aging resistance of HDPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0102] Results obtained from Table 5 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the delta yellowness index further reduced after exposing to air oxidative aging at a temperature of 80 °C.Table 6. Thermal aging resistance of HDPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0103] Results obtained from Table 6 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the color (delta E) further reduced after exposing to air oxidative aging at a temperature of 80 °C.Table 7. Gas fade resistance of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant

[0104] Results obtained from Table 7 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the delta yellowness index further reduced after exposing to gas fade at a temperature of 57 °C.Table 8. Gas fade resistance of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant

[0105] Results obtained from Table 8 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the color (delta E) further reduced after exposing to gas fade at a temperature of 57 °C.Table 9. Gas fade resistance of HDPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0106] Results obtained from Table 9 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the delta yellowness index further reduced after exposing to gas fade at a temperature of 57 °C.Table 10. Gas fade resistance of HDPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0107] Results obtained from Table 10 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the color (delta E) further reduced after exposing to gas fade at a temperature of 57 °C.Table 11. QUV-B 313 weathering test of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant

[0108] Results obtained from Table 11 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the delta yellowness index either reduced or, remained similar after exposing to QUV-B 313.Table 12. QUV-B 313 weathering test of HDPE stabilized with HALS, UV-1164, L-55 and antioxidant

[0109] Results obtained from Table 12 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber and antioxidant, the color (delta E) either reduced or, remained similar after exposing to QUV- B 313.Table 13. QUV-B 313 weathering test of HDPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0110] Results obtained from Table 13 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the delta yellowness index either reduced or, remained similar after exposing to QUV-B 313.Table 14. QUV-B 313 weathering test of HOPE stabilized with HALS, UV-1164, UV-2908, L-55 and antioxidant

[0111] Results obtained from Table 14 demonstrated that when L-55 and tertiary HALS were added to the stabilizer system containing secondary HALS, triazine UV absorber, hindered benzoate and antioxidant, the color (delta E) either reduced or, remained similar after exposing to QUV-B 313.

[0112] Example for rotational molding process simulation:

[0113] A linear medium density polyethylene resin (NOVAPOL® TF-0338-E) and additives were dry blended as per the Formulation Table 15 and extruded using a single screw extruder from Davis- Standard Corp (Model DS-15-HM) at a melt temperature of 370 °F and extruded polymer strands were pelletized. The extruded pellets were then grinded using a grinder from the Power King and sieved through a pack of mesh containing various porosity. The grinded polymers, which have a particle size from 150 micron to 425 micron, were collected for further evaluation.[001114] To simulate the rotational molding process, 20 grams of powered polymers with particle size from 150 micron to 425 micron were taken over an aluminum plate. Next, a square, hollow metal mold (melt cell) with a height of 25 mm was placed over the polymer powders. The powders were compacted using a press at room temperature. Then, the aluminum plate containing compacted polymer powder and melt cell was transferred on the top of the lower platen of a compression mold that was set at a temperature of 450 °F. Next, the lower platen of the compression mold was raised close to the upper platen that was set at a temperature of 450 °F. The gap between the lower and upper platens of the compressionmold was set at 35 mm. The set up was design in a fashion that the surface of the polymer powder does not come in direct contact with the heated top platen of the compression mold. As the polymer powder melts, it fuses together without any external shear to produce a uniform article mimicking the rotational molding process. After 10 minutes of heating, the aluminum plate containing the melt cell with molten polymer was taken out of the heated platen and cooled down to room temperature using a cooling fan and the melt cell was removed. The resulting polymer article has a thickness in between 5.3 mm to 5.5 mm. When the polymer article was cooled down to room temperature, the color of the article was taken using the Color Eye Colorimeter as per the ASTM D2244-79.

[0115] Yellowness Index values of the article produced after a simulated rotational molding process is listed in Table 16. The mold side refers to the side where the polymer comes in direct contact with the hot platen of the compression mold and the air side refers to the side where the polymer comes contact with the hot air produced by the heated top platen of the compression mold. It was found that the addition of L-55, the color of article reduces. The color is further reduced when a combination of a secondary HALS and tertiary HALS are used in the formulation with L-55.Table 15. Formulation used for rotational molding process simulationTable 16. Yellowness Index of the article produced after rotational molding process simulation

[0116] Although only a few example embodiments have been described in detail above, those skilled in the art will readily appreciate that many modifications are possible in the example embodiments without materially departing from this invention. Accordingly, all such modifications are intended to be included within the scope of this disclosure as defined in the following claims. In the claims, means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents, but also equivalent structures.

Claims

CLAIMS1. A stabilized polymer composition comprising: a. an organic polymeric material to be stabilized, and b. a stabilizer composition comprising: i. at least one UV absorber selected from o-hydroxyphenyl-triazine UV absorber class; ii. a secondary hindered amine light stabilizer (sec. -HALS); iii. at least one antioxidant selected from hindered phenol, phosphite, phosphonite, or any mixture thereof; iv. a tertiary hindered amine light stabilizer (tert. -HALS); v. an alkoxy lated alcohol; and vi. optionally a hindered benzoate; wherein the stabilized polymer composition is more resistant to discoloration due to gas fading and thermal oxidation compared to the polymer composition wherein the aforementioned stabilizer composition does not include a tertiary HALS stabilizer and an alkoxylated alcohol.

2. The stabilized polymer composition according to claim 1, wherein the ratio of sec. -HALS to tert. -HALS is between 10:1 to 1:10.

3. The stabilized polymer composition according to claim 1 or 2, wherein the ratio of sec. -HALS to tert. -HALS is between 5:1 to 1:5.

4. The stabilized polymer composition according to any one of claims 1 to 3, wherein the ratio of tert. -HALS to alkoxylated alcohol is between 100:1 to 1:1.

5. The stabilized polymer composition according to any one of claims 1 to 4, wherein the ratio of tert. -HALS to alkoxylated alcohol is between 50:1 to 2:1, and preferably between 20:1 to 4:1.

6. The stabilized polymer composition according to any one of claims 1 to 5, wherein the stabilizer composition is present in an amount of 0.005 to 10 wt.%, preferably 0.01 to 5 wt.%, and more preferably 0.1 to 2 wt.%, based on the total weight of the polymer.

7. The stabilized polymer composition according to any one of claims 1 to 6, wherein the stabilizer composition comprises at least one o-hydroxyphenyl -triazine UV absorber according to Formula (I)(I), wherein each R34 and R35 is independently a Ce-Cio aryl group, mono- or di-Ci-Cn hydrocarbyl-substituted amino, C2-C12 alkanoyl, C1-C12 alkyl, C1-C10 acyl, or Ci- C10 alkoxyl, wherein the Ce-Cio aryl group is optionally substituted at from 1 to 3 substitutable positions with at least one of OH, halogen, C1-C12 alkyl, C1-C12 alkoxy, C1-12 alkoxyester, C2-12 alkanoyl, or phenyl, wherein the phenyl is optionally substituted at from 1 to 3 substitutable positions with at least one of OH, halogen, C1-12 alkyl, C1-12 alkoxy, C1-12 alkoxy ester, or C2-12 alkanoyl; and each R36 is independently OH, halogen, C1-C12 alkyl, C1-C12 alkoxy, C1-C12 alkoxyester, C2-C12 alkanoyl, phenyl, or C1-C12 acyl.

8. The stabilized polymer composition of claim 7, wherein o-hydroxyphenyl-triazine UV absorber is at least one of:4.6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-.s-tri azine,4.6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine,4.6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-isooctyloxyphenyl)-s-triazine,2, 4-bis[2 -hydroxy -4-(2 -hydroxy -4-(2 -hydroxy ethoxy )phenyl]-6-(2,4-dirnethylphenyl)-.s- tri azine, mixture of 4, 6-bis(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3 -dodecyl oxy-2- hydroxypropoxy)phenyl)-5-triazine and 4,6-bis-(2,4-dimethylphenyl)-2-(2- hydroxy-4-(3-tri decyl oxy -2-hydroxypropoxy)phenyl)-.s-tri azine,4, 6-bis(2,4-dimethylphenyl)-2-(2 -hydroxy -4(3-(2-ethylhexyl oxy)-2-hy droxypropoxy)- phenyl)-.s-tri azine,4.6-bis(2,4-dimethylphenyl)-2-(2 -hydroxy -4(3-(2-ethylhexyl oxy)-2-hy droxypropoxy)- phenyl)-.s-tri azine,2.4-bis(2,4-dimethylphenyl)-6-[2 -hydroxy -4-[(octyloxy carbonyl)ethylideneoxy]phenyl]-.s-tri azine,2.4-bis(4-biphenylyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-s- tri azine,2.4-bis(4-biphenylyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine,2.4-bis(2 -hydroxy -4-butyloxyphenyl)-6-(2,4-bis-butyloxyphenyl)-s-tri azine,2.4.6-tris[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)-phenyl]-s-triazine, or2.4.6-tris[2 -hydroxy -4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-.s-tri azine.

9. The stabilized polymer composition according to any one of claims 1 to 8, wherein the stabilizer composition further comprises at least one more UV absorber (UVA) selected from the group consisting of 2- hydroxybenzophenone compounds; orthohydroxyphenyl benzotriazole compounds; oxanilides; cyanoacrylates; benzoxazinone compounds; and mixtures thereof.

10. The stabilized polymer composition of claim 9, wherein the 2-hydroxybenzophenone is at least one 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'-di ethoxybenzophenone, 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'-di chlorobenzophenone, 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'- / c / 7-biitylbenzophenone, 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'-di ethoxybenzophenone, 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.

11. The stabilized polymer composition of claim 9, wherein the 2-(2'- hydroxyphenyl)benzotriazole is at least one of 2-(2'-hydroxy-5'- methylphenyl)benzotriazole, 2-(2'-hydroxy-5'- / c77-biitylphenyl)benzotri azole, 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)benzotriazole, 2-(3',5'-di-tert-butyl-2'- hydroxyphenyl)-5-chlorobenzotriazole, 2- (3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotri azole, 2-(3',5'-bis(a,a-dimethylbenzyl)-2'- hydroxyphenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2- octyloxycarbonylethyl)phenyl)benzotriazole, 2,2'-methylenebis[4-(l, 1,3,3-tetramethylbutyl)- 6-benzotriazole-2-ylphenol], the transesterification product of 2-\3'-tert- butyl-5'-(2- methoxycarbonylethyl)-2'-hydroxyphenyl]-2H-benzotriazole with polyethylene glycol 300 (TINUVIN™ 1130), 2-[2'-hydroxy-3'-(a,a-dimethylbenzyl)-5'-(l, 1,3,3- tetramethylbutyl)phenyl]benzotriazole, 5-trifluoromethyl-2-(2-hydroxy-3-a-cumyl-5-tert- octylphenyl)benzotriazole, 2-(2'-hydroxy-5'-(2-hydroxyethyl)phenyl)benzotriazole, 2-(2'- hydroxy-5'-(2-methacryloyloxyethyl)phenyl)benzotriazole, 2-(2'-hydroxy-3'-tert-butyl- 5'- methylphenyl)-5-chlorobenzotriazole, 2-(3'-sec-butyl-5'-tert-butyl-2'- hydroxyphenyl)benzotriazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotri azole, 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, or 2-(5'-tert-butyl-2'-hydroxyphenyl)benzotri azole.

12. The stabilized polymer composition of claim 9, wherein the benzoxazinone is at least one of 2-methyl-3,l-benzoxazin-4-one, 2-butyl-3,l-benzoxazin-4-one, 2-phenyl-3,l-benzoxazin-4- one, 2-(l- or 2-naphthyl)-3,l-benzoxazin-4-one, 2-(4-biphenyl)-3,l-benzoxazin-4-one, 2- / ?-nitrophenyl-3, 1 -benzoxazin-4-one, 2-m-nitrophenyl-3, 1 -benzoxazin-4-one, 2- / ?-benzoylphenyl-3,l-benzoxazin-4-one, 2- / ?-methoxyphenyl-3,l-benzoxazin-4-one,2-O-methoxyphenyl-3,l-benzoxazin-4-one, 2-cyclohexyl-3,l-benzoxazin-4-one, 2- / ?-(or / ??- )phthalimidephenyl-3,l-benzoxazin-4-one, N-phenyl-4-(3,l-benzoxazin-4-one-2- yl)phthalimide, N-benzoyl-4-(3, l-benzoxazine-4-one-2-yl)aniline, N-benzoyl-N-methyl-4- (3,l-benzoxazin-4-one-2-yl)-aniline, 2-[p-(N-phenylcarbamonyl)phenyl]-3,l-benzoxazin-4- one, 2-[p-(N-phenyl N-methylcarbamoyl)phenyl]-3,l-benzoxazin-4-one, 2,2'-bis(3, 1- benzoxazin-4-one), 2,2'-ethylenebis(3,l-benzoxazin-4-one), 2,2'-tetramethylenebis(3,l- benzoxazin-4-one), 2,2'-hexamethylenebis(3,l-benzoxazin-4-one), 2,2'- decamethylenebis(3,l-benzoxazin-4-one), 2,2'-p-phenylenebis(3,l-benzoxazin-4-one), 2,2'-m-phenylenebis(3, l-benzoxazin-4-one), 2,2'-(4,4'-diphenylene)bis(3, l-benzoxazin-4- one), 2,2'-(2,6-or l,5-naphthalene)bis(3,l-benzoxazin-4-one), 2,2'-(2-methyl- / ?- phenylene)bis(3,l-benzoxazin-4-one), 2,2'-(2-nitro- / ?-phenylene)bis(3,l-benzoxazin-4-one), 2,2'-(2-chloro- / ?-phenylene)bis(3, l-benzoxazin-4-one), 2,2'-(l,4-cyclohexylene)bis(3, 1- benzoxazin-4-one), N- / ?-(3,l-benzoxazin-4-on-2-yl)phenyl, 4-(3,l-benzoxazin-4-on-2-yl)phthalimide, N- / ?-(3,l-benzoxazin-4-on-2-yl)benzoyl, 4-(3,l-benzoxazin-4-on-2-yl)aniline, l,3,5-tri(3,l-benzoxazin-4-on-2-yl)benzene, l,3,5-tri(3,l-benzoxazin-4-on-2-yl)naphthalene, or 2,4,6-tri(3,l-benzoxazin-4-on-2-yl)naphthalene.

13. The stabilized polymer composition according to any one of claims I to 12, wherein the tertiary hindered amine light stabilizer (ze / ' / .-HALS) is at least one selected from bis(l,2,2,6,6- pentamethylpiperidin-4- yl)sebacate; bis(l,2,2,6,6-pentamethyl-4-piperidinyl); bis(l,2,2,6,6- pentamethylpiperidin-4- yl) n-butyl 3,5-di-tert-butyl-4-hydroxybenzylmalonate; a condensate of 1 -(2-hydroxy ethyl)- 2,2,6,6-tetramethyl-4-hydroxypiperidine and succinic acid; a mixture of bis(l,2,2,6,6- pentamethylpiperidin-4-yl) sebacate and methyl 1, 2, 2,6,6- pentamethylpiperidin-4-yl sebacate (TINUVIN™ 292); bis(l, 2,2,6, 6-pentamethylpiperidin-4- yl) / / -butyl 3,5-di-Ze / 'Z-butyl-4- hydroxybenzylmalonate; a condensate of 1 -(2-hydroxy ethyl)- 2,2,6,6-tetramethyl-4- hydroxypiperidine and succinic acid; l,2,2,6,6-pentamethylpiperidin-4- yl stearate; 1,2, 2, 6, 6- pentamethylpiperidin-4-yl dodecanate; a condensate of N,N'-bis(2, 2,6,6- tetramethylpiperidin- 4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-l,3,5- triazine, methylated; a condensate of 2-chl oro-4, 6-bis(4- / / -butylamino- 1,2, 2,6,6- pentamethylpiperidyl)-l,3,5-triazine and l,2-bis-(3-aminopropylamino)ethane; tetrakis(l,2,2,6,6-pentamethylpiperidin-4-yl)- 1,2,3,4-butanetetracarboxylate; a mixture of 4- hexadecyloxy- and 4-stearyloxy-l,2,2,6,6- pentamethylpiperidine; l,5,8,12-tetrakis[4,6- bis(N-butyl-N-l,2,2,6,6-pentamethyl-4- piperidylamino)-l,3,5-triazin-2-yl]-l,5,8,12- tetraazadodecane; reaction product of 1,2, 3, 4- butanetetracarboxylic acid, polymer with P, P, P'-tetramethyl-2,4,8, 10- tetraoxyspiro[5,5]undecane-3,9-diethanol, 1, 2,2,6, 6-pentamethyl-4- piperidinyl ester.

14. The stabilized polymer composition according to any one of claims 1 to 13, wherein the secondary hindered amine light stabilizer (sec. -HALS) is selected from: bis(2,2,6,6-tetramethylpiperidin-4-yl) succinate; a mixture of 2,2,6,6-tetramethylpiperidin-4-yl esters of C12-C21 saturated and Cis unsaturated fatty acids; bis(l,2,2,6,6-pentamethylpiperidin-4-yl) sebacate;2,2,6,6-tetramethylpiperidin-4-yl stearate;2,2,6,6-tetramethylpiperidin-4-yl dodecanate; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4- tert-octylamino-2, 6-dichl oro-1, 3, 5-tri azine; tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;4-stearyloxy -2, 2, 6, 6-tetram ethylpiperidine; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4-morpholino-2,6-dichloro-l,3,5-triazine; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine, N- butyl-2,2,6,6-tetramethyl-4-piperidinamine, di-w-butyl amine, and 2,4,6- trichloro- 1,3,5-triazine; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4- cyclohexylamino-2,6-dichloro-l,3,5-triazine; a condensate of l,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-l,3,5-triazine, and 4- butylamino-2,2,6,6-tetramethylpiperidine; a condensate of N,N'-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and 4- cyclohexylamino-2,6-dichloro-l,3,5-triazine; tetrakis(2, 2, 6, 6-tetram ethyl piperidin-4-yl)- 1 ,2,3 ,4-butanetetracarboxylate;1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethylpiperidinyl-4-yl tridecyl ester; or formamide, N,N'-l,6-hexanediylbis[N-(2,2,6,6-tetramethylpiperidin-4-yl).

15. The stabilized polymer composition according to any one of claims 1 to 14, wherein the hindered benzoate compound is according to Formula (VII):wherein each of R21and R22is independently chosen from a C1-C12 alkyl;T is O , where R24is H or a C1-C30 hydrocarbyl; andR23is H or a C1-C30 hydrocarbyl.

16. The stabilized polymer composition according to claim 15, wherein the hindered benzoate compound is selected from the group consisting of 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4- hydroxybenzoate; hexadecyl -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; behenylyl-3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di- tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate; butyl-3-[3-t-butyl-4-(3,5-di-t-butyl-4- hydroxybenzoyloxy)phenyl]propionate; and mixtures thereof.

17. The stabilized polymer composition according to any one of claims 1 to 16, wherein the stabilizer composition comprises a hindered phenol antioxidant which is chosen from: (1,3,5- Tris(4-t-butyl-3-hydroxy-2,6- dimethylbenzyl)- 1, 3, 5-triazine-2, 4, 6-(lH,3H,5H)-trione; l,3,5-tris(3,5-di-tert-butyl-4- hydroxybenzyl)-l,3,5-triazine-2,4,6(lH,3H,5H)-trione; 1,1,3- Tris(2’-methyl-4’-hydroxy-5’- / - butylphenyl)butane; Triethylene glycol bis[3-(3-t-butyl-4-hydroxy-5- methylphenyl)propionate]; 4,4’-Thiobis(2-t-butyl-5- methylphenol); 2,2’ -Thiodi ethylene bis[3-(3-t-butyl-4-hydroxyl-5-methylphenyl)propionate]; Octadecyl 3-(3’-t-butyl-4’- hydroxy-5’ -methyl phenyl)propi onate;Tetrakismethylene(3- / -butyl-4-hydroxy-5- methylhydrocinnamate)methane; N,N’~ Hexamethylene bis[3-(3-t-butyl-4-hydroxy-5- methylphenyl)propionamide]; Di(4- tertiarybutyl-3-hydroxy-2,6-dimethylbenzyl) thiodipropionate; and octadecyl 3,5-di-(tert)- butyl-4-hydroxyhydrocinnamate.

18. The stabilized polymer composition according to any one of claims 1 to 18, further comprising an organic phosphite or phosphonite.

19. The stabilized polymer composition according to claim 18, wherein the organic phosphite or phosphonite is chosen from: triphenyl phosphite; diphenyl alkyl phosphites; phenyl dialkyl phosphites; trilauryl phosphite; trioctadecyl phosphite; distearyl pentaerythritol phosphite; tris(2,4-di-tert-butylphenyl) phosphite; tris(nonylphenyl) phosphite; a compound of formulae (A), (B), (C), (D), (E), (F), (G), (H), (J), (K) and (L):(C),(L); and2 -butyl-2-ethyl- 1,3 -propanediol 2,4,6-tri-t-butylphenol phosphite, bis-(2,6-di-t- butyl-4-methlphenyl) pentaerythritol diphosphite, 2-butyl-2-ethyl-l,3-propanediol 2,4-di-cumylphenol phosphite, 2-butyl-2-ethyl-l,3-propanediol 4-methyl-2,6-di-t- butylphenol phosphite, and bis-(2,4,6-tri-t-butyl-phenyl) pentaerythritol diphosphite, tris(2,4-di-tert-butylphenyl)phosphite; Bis(2,4- dicumylphenyl)pentaerythritol diphosphite; and tetrakis(2,4-di-tert- butylphenyl)4,4’-biphenylene-diphosphonite.

20. The stabilized polymer composition according to any one of claims 1 to 19, wherein the stabilizer composition comprises an inorganic UV blocker.

21. The stabilized polymer composition according to any one of claims 1 to 20, wherein the inorganic UV blocker is selected from titanium oxide, zinc oxide, cerium oxide and barium sulfate.

22. The stabilized composition according to any one of claims 1 to 21, wherein the alkoxylated alcohol is according to Formula (III):R-(OCHR’CH2)y-OH (III), wherein R is a hydrocarbyl group having from 12 to 60 carbon atoms; R’ is chosen from H or C1-C4 alkyl; R” is a hydrocarbyl group having from 1 to 10 carbon atoms; and y is an integer from 1 to 100.

23. The stabilized composition according to claim 22, wherein in Formula (III), R is a C12-C30 alkyl and R’ is H.

24. The stabilizer composition according to claim 22 or 23, wherein y is from 1 to 75.

25. The stabilized polymer composition according to any one of claims 1 to 24s, further comprising a stabilizing amount of a co-additive selected from the group consisting of nucleating agents, fillers, metallic stearates, reinforcing agents, plasticizers, lubricants, rheology agents, catalysts, leveling agents, optical brighteners, anti-static agents, blowing agents, flame retardants, dyes, pigments, thioesters, hydroxylamines, benzofuranones, nitrones, and mixtures thereof.

26. The stabilized polymer composition according to any one of claims 1 to 25, wherein the polymeric 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, cellulosic acetate butyrate, cellulosic polymers, polyimides, polyamideimides, polyetherimides, polyphenylsulfides, polyphenyloxidepolysulfones, polyethersulfones, polyvinylchlorides, polycarbonates, polyketones, aliphatic polyketones, thermoplastic olefins (TPO), polyolefin elastomers (POE), amino resin cross-linked polyacrylates and polyesters,polyisocyanate cross-linked polyesters and polyacrylates, phenol / formaldehyde, urea / formaldehyde and melamine / formaldehyde resins, drying and non-drying alkyd resins, alkyd resins, polyester resins, acrylate resins cross-linked with melamine resins, urea resins, isocyanates, isocyanurates, carbamates, epoxy resins, cross-linked epoxy resins derived from aliphatic, cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which are cross- linked with anhydrides or amines, polysiloxanes, Michael addition polymers, amines, blocked amines with activated unsaturated and methylene compounds, ketimines with activated unsaturated and methylene compounds, polyketimines in combination with unsaturated acrylic polyacetoacetate resins, polyketimines in combination with unsaturated acrylic resins, coating compositions, radiation curable compositions, epoxymelamine resins, organic dyes, cosmetic products, cellulose-based paper formulations, photographic film paper, fibers, waxes, and inks.

27. The stabilized polymer composition of claim 26, wherein the polymeric organic material to be stabilized is a polyolefin selected from the group consisting of i) polymers of monoolefms chosen from polyethylene, polypropylene, polyisobutylene, polybut-l-ene, or poly-4- methylpent-l-ene; ii) polymers of diolefins chosen from polyisoprene or polybutadiene; iii) polymers of cycloolefins chosen from cyclopentene or norbomene; iv) polyethylene chosen 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 ultralow density polyethylene (ULDPE); v) thermoplastic olefins (TPO); vi) polyolefin elastomers (POE); vii) copolymers thereof; and viii) mixtures thereof.

28. A process for making stabilized article, the process comprising adding the stabilized polymer composition according to any one of claims 1 to 27 to a device or process for performing industrial molding; industrial fiber making; industrial tape; and extruded sheets.

29. The process according to claim 28, wherein the device or process for industrial molding is chosen from injection molding, rotomolding, blow molding, reel-to-reel molding, metal injection molding, compression molding, transfer molding, dip molding, gas assist molding, insert injection molding, micro molding, reaction injection molding, and two shot injectionmolding.

30. The process according to claim 28 or 29, wherein the process for industrial molding is rotomolding comprising the steps of: a) filling a mold with the stabilized polymer composition, b) rotating the mold around at least one axis while heating the mold in an oven, thereby fusing the composition and spreading it to the walls of the mold; c) cooling the mold; d) opening the mold; and e) removing the hollow article from the mold.

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