Polycarbonate composition containing combination of hydroxyphenyltriazine and uv absorber

Abstract

Polycarbonate compositions containing a combination of hydroxyphenyltriazine and a UV absorber. The present invention relates to a composition comprising a polycarbonate, at least one compound of formula (A) and at least one UV absorber other than the compound of formula (A). The invention further relates to an additive mixture comprising at least one compound of formula (A) and at least one UV absorber. The invention also relates to the use of the additive mixture for enhancing the optical properties of molded or extruded articles, including multilayer articles.

Description

Technical Field

[0001] The present invention relates to a composition comprising a polycarbonate, at least one compound of formula (A) and at least one UV absorber other than the compound of formula (A). In addition, the present invention relates to an additive mixture comprising at least one compound of formula (A) and at least one UV absorber. The present invention also relates to the use of the additive mixture for enhancing the optical properties of molded or extruded articles (including multilayer articles). Background Art

[0002] Polycarbonate moulded or extruded articles are known in the literature and are prepared for many applications. These articles are produced, for example, by extruding a composition containing polycarbonate. Coextrusion with other compositions containing polycarbonate and, in addition, a relatively high proportion of UV absorbers may optionally take place. However, polycarbonate has the disadvantage that it is not inherently UV-stable itself.

[0003] In order to prevent the adverse effects of UV light on articles made of polycarbonate, various additives are used, such as hindered amine light stabilizers, UV absorbers, etc. However, these additives or mixtures of these additives do not improve the stability of polycarbonate molded or extruded articles to a significant extent.

[0004] It is therefore an object of the present invention to overcome the above disadvantages and to provide a composition comprising polycarbonate having improved optical properties. It is particularly desirable to improve the optical properties of polycarbonate sheets and polycarbonate articles.

[0005] Another object of the present invention is to provide a polycarbonate composition that can be used to prepare polycarbonate articles or sheets having improved optical properties, especially ΔE and yellowness index.

[0006] Yet another object of the present invention is to provide a composition that improves the aging resistance of polycarbonate sheets or articles.

[0007] Yet another object of the present invention is to provide an additive mixture that can improve the optical properties of polycarbonate when incorporated into polycarbonate. Summary of the invention

[0008] Surprisingly, it has been found that the additive mixture of the presently claimed invention, i.e. the combination of at least one compound having formula (A), at least one UV absorber other than the compound having formula (A), and polycarbonate improves the optical properties of polycarbonate sheets or polycarbonate articles exposed to light and thus extends the life of the polycarbonate sheets or polycarbonate articles and brings economic value.

[0009] Thus, in one aspect, the presently claimed invention is directed to a composition comprising:

[0010] i. polycarbonate in an amount ranging from 90 to 99.9 wt % based on the total weight of the composition;

[0011] ii. at least one compound of formula (A) selected from formula (A-1), (A-2), (A-3), (A-4), (A-5), (A-6) or (A-7) in an amount ranging from 0.02 to 0.8 wt % based on the total weight of the composition,

[0012]

[0013]

[0014]

[0015] iii. at least one UV absorber other than the compound of formula (A) in an amount ranging from 0.4 to 2.5 wt %, based on the total weight of the composition.

[0016] In another aspect, the presently claimed invention is directed to an additive mixture comprising

[0017] I. at least one compound of formula (A) as defined above; and

[0018] II. At least one UV absorber other than the compound of formula (A).

[0019] In another aspect, the presently claimed invention relates to an article comprising the composition as defined above.

[0020] In yet another aspect, the presently claimed invention relates to the use of an additive mixture as defined above for enhancing the optical properties of molded or extruded articles, including multilayer articles. DETAILED DESCRIPTION

[0021] Before describing the compositions and formulations of the present invention, it should be understood that the present invention is not limited to the particular compositions and formulations described, as such compositions and formulations may, of course, vary. It should also be understood that the terminology used herein is not intended to be limiting, as the scope of the presently claimed invention will be limited only by the appended claims.

[0022] If group is defined as including at least a certain number of embodiments hereinafter, this means also including a group preferably consisting of only these embodiments. In addition, the terms "first", "second", "third" or "(a)", "(b)", "(c)", "(d)" etc. in the specification and claims are used to distinguish similar elements and are not necessarily used to describe sequential order or chronological order. It should be understood that the terms used in this way are interchangeable where appropriate, and the embodiments of the present invention described herein can be operated in other sequences except as described or shown herein. If the terms "first", "second", "third" or "(A)", "(B)" and "(C)" or "(a)", "(b)", "(c)", "(d)", "i", "ii" etc. relate to the steps of method or purposes or determination, there is no time or time interval coherence between these steps, that is, these steps can be carried out simultaneously or there can be a time interval of a few seconds, minutes, hours, days, weeks, months or even years between these steps, unless otherwise noted in the application described above or below.

[0023] In the following paragraphs, different aspects of the present invention are defined in more detail. Unless explicitly indicated to the contrary, each aspect so defined can be combined with any one or more other aspects. In particular, any feature indicated as preferred or advantageous can be combined with any one or more other features indicated as preferred or advantageous.

[0024] References throughout this specification to "one embodiment" or "preferred embodiment" mean that a particular feature, structure, or property described in conjunction with that embodiment is included in at least one embodiment of the invention currently claimed. Therefore, the phrases "in one embodiment" or "in a preferred embodiment" or "in another embodiment" appearing in different places throughout this specification do not necessarily all refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, specific features, structures, or characteristics may be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure. In addition, although some embodiments described herein include some but not other features included in other embodiments, the combination of features of different embodiments is also intended to be within the scope of the present invention and to form different embodiments, as will be understood by those of ordinary skill in the art. For example, in the appended claims, any of the claimed embodiments may be used in any combination.

[0025] Furthermore, ranges defined throughout this specification also include the endpoints, ie, a range of 1 to 10 means that both 1 and 10 are included in the range. For the avoidance of doubt, the applicant shall be entitled to any equivalent means under applicable law.

[0026] Certain terms are first defined to facilitate easier understanding of the present disclosure. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the present invention belong.

[0027] In one aspect, the presently claimed invention is directed to a composition comprising:

[0028] i. Polycarbonate;

[0029] ii. at least one compound having formula (A),

[0030]

[0031] in

[0032] E1 is hydrogen, C1-C 18 Alkyl, a group having the formula P

[0033]

[0034] wherein R, R' and R" are independently C1-C 18 Alkylene,

[0035] * indicates the attachment point to X1,

[0036] or

[0037] A group having the formula Q

[0038]

[0039] Where T is a straight or branched C1-C 18 Alkylene and U is a linear or branched C1-C 18 alkyl,

[0040] E2 is hydrogen, hydroxy, alkoxy, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups,

[0041] E3, E4, E5 and E6 are independently hydrogen, C1-C 18 Alkyl, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups, or a group having the formula Q

[0042]

[0043] Where T is a straight or branched C1-C 18 Alkylene and U is a linear or branched C1-C 18 alkyl,

[0044] X1 is a direct bond oxygen, a phenyl group, or a phenyl group substituted with 1, 2 or 3 C1-C4 alkyl groups, and

[0045] b is an integer ranging from 1 to 2, and

[0046] iii. at least one UV absorber other than the compound of formula (A).

[0047] In a preferred embodiment, the presently claimed invention is directed to a composition comprising:

[0048] i. polycarbonate in an amount ranging from 90 to 99.9 wt % based on the total weight of the composition:

[0049] ii. at least one compound of formula (A) in an amount ranging from 0.02 to 1 wt % based on the total weight of the composition,

[0050]

[0051] in

[0052] E1 is hydrogen, C1-C 18 Alkyl, a group having the formula P

[0053]

[0054] wherein R, R' and R" are independently C1-C 18 Alkylene,

[0055] * indicates the attachment point to X1,

[0056] or

[0057] A group having the formula Q

[0058]

[0059] Where T is a straight or branched C1-C 18 Alkylene and U is a linear or branched C1-C 18 alkyl,

[0060] E2 is hydrogen, hydroxy, alkoxy, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups,

[0061] E3, E4, E5 and E6 are independently hydrogen, C1-C 18 Alkyl, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups, or a group having the formula Q

[0062]

[0063] Where T is a straight or branched C1-C 18 Alkylene and U is a linear or branched C1-C18 alkyl,

[0064] X1 is a direct bond oxygen, a phenyl group, or a phenyl group substituted with 1, 2 or 3 C1-C4 alkyl groups, and

[0065] b is an integer ranging from 1 to 2, and

[0066] iii. at least one UV absorber other than the compound of formula (A) in an amount ranging from 0.1 to 10 wt %, based on the total weight of the composition.

[0067] In a preferred embodiment, the polycarbonate is selected from a homopolycarbonate, a copolycarbonate, a thermoplastic polyester carbonate, a polycarbonate / acrylonitrile-butadiene-styrene terpolymer blend, a thermoplastic alloy of a polycarbonate / acrylic-styrene-acrylonitrile terpolymer, a thermoplastic alloy of a polycarbonate / polybutylene terephthalate blend, a thermoplastic alloy of a polycarbonate / polyethylene terephthalate, or a thermoplastic alloy of a polycarbonate and styrene-acrylonitrile.

[0068] In a more preferred embodiment, the polycarbonate is selected from homopolycarbonate, copolycarbonate, thermoplastic polyester carbonate, polycarbonate / acrylonitrile-butadiene-styrene terpolymer blend, thermoplastic alloy of polycarbonate / acrylic-styrene-acrylonitrile terpolymer, or thermoplastic alloy blend of polycarbonate / polybutylene terephthalate.

[0069] In a most preferred embodiment, the polycarbonate is selected from a homopolycarbonate, a copolycarbonate, a thermoplastic polyester carbonate, or a polycarbonate / acrylonitrile-butadiene-styrene terpolymer blend.

[0070] In a preferred embodiment, the total amount of polycarbonate in the composition is in the range of 90 to 99.9 wt % based on the total weight of the composition.

[0071] In more preferred embodiments, the total amount of polycarbonate in the composition is in the range of 91 to 99.8 wt%, or 92 to 99.7 wt%, or 93 to 99.6 wt%, or 94 to 99.5 wt%, or 95 to 99.4 wt%, or 96 to 99.3 wt%, based on the total weight of the composition.

[0072] In the most preferred embodiment, the total amount of polycarbonate in the composition is in the range of 97 to 99.2 wt % based on the total weight of the composition.

[0073] In the context of the present invention, the term alkyl as used herein refers to a non-cyclic saturated aliphatic residue, including straight-chain or branched alkyl residues.

[0074] As used herein, "branched" means a chain of atoms having one or more side chains attached. Branching occurs by replacing a substituent (eg, a hydrogen atom) with a covalently bonded aliphatic moiety.

[0075] Compounds having formula (A):

[0076] In a preferred embodiment, the composition comprises at least one compound having formula (A)

[0077]

[0078] In a preferred embodiment, E1 is hydrogen, C1-C 18 alkyl, a group of formula P, or a group of formula Q, more preferably hydrogen, C1-C8 alkyl, a group of formula P

[0079]

[0080] wherein R, R' and R" are independently C1-C 18 Alkylene, more preferably R, R' and R" are independently C2-C 10 Alkylene, preferably b is an integer in the range of 1 to 2, or a group having the formula Q.

[0081] In preferred embodiments, when b is 1, then E1 is hydrogen, an alkyl group, or a group having formula Q, and when b is 2, then E1 is a group having formula P.

[0082] In a preferred embodiment, E2 is hydrogen, hydroxy, alkoxy, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups, more preferably E2 is hydrogen or hydroxy.

[0083] In a preferred embodiment, E3, E4, E5 and E6 are independently hydrogen, C1-C 18 Alkyl, phenyl, or phenyl substituted by 1, 2 or 3 C1-C4 alkyl groups, or a group of formula Q, more preferably E3, E4, E5 and E6 are independently hydrogen, C1-C4 alkyl, phenyl or a group of formula Q.

[0084] Examples of alkyl groups having up to 18 carbon atoms are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 1-methylpentyl, 1,3-dimethylbutyl, n-hexyl, 1-methylhexyl, n-heptyl, isoheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 3-methylheptyl, n-octyl, 2-ethylhexyl, 1,1,3-trimethylhexyl, 1,1,3,3-tetramethylpentyl, nonyl, decyl, undecyl, 1-methylundecyl, dodecyl, 1,1,3,3,5,5-hexamethylhexyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl and octadecyl.

[0085] Examples of alkylene groups having up to 18 carbon atoms are methylene, ethylene, propylene, isopropylene, n-butylene, sec-butylene, isobutylene, tert-butylene, 2-ethylbutylene, n-pentylene, isopentylene, 1-methylpentylene, 1,3-dimethylbutylene, n-hexylene, 1-methylhexylene, n-heptylene, isoheptylene, 1,1,3,3-tetramethylbutylene, 1-methylheptylene, 3-methylheptylene, n-octylene, 2-ethylhexylene, 1,1,3-trimethylhexylene, 1,1,3,3-tetramethylpentylene, nonylene, decylene, undecylene, 1-methylundecylene, dodecylene, 1,1,3,3,5,5-hexamethylhexylene, tridecylene, tetradecylene, pentadecylene, hexadecylene, heptadecylene and octadecylene.

[0086] In a preferred embodiment, X1 is a direct bonded oxygen, a phenyl group, or a phenyl group substituted by 1, 2 or 3 C1-C4 alkyl groups, more preferably X1 is a direct bonded oxygen or a phenyl group.

[0087] As used herein, the term "direct bond", in the context of being part of a structural variable specification, refers to the direct attachment of a substituent flanking (preceding and following) the variable as the "direct bond".

[0088] In a more preferred embodiment, the compound having formula (A) is selected from formula (A-1), (A-2), (A-3), (A-4), (A-5), (A-6) or (A-7),

[0089]

[0090]

[0091] In an even more preferred embodiment, the compound of formula (A) is selected from formula (A-1), (A-2) or (A-6). Most compounds of formula (A) are known and can be prepared in analogy to methods known to those skilled in the art.

[0092] Compounds of formula (A) can be prepared, for example, in analogy to the methods described in US-B-6,255,483.

[0093] In a preferred embodiment, the total amount of the compound having formula (A) in the composition is in the range of 0.02 to 1 wt % based on the total weight of the composition.

[0094] In a more preferred embodiment, the total amount of compounds having formula (A) in the composition is in the range of 0.02 to 0.9 wt%, or 0.02 to 0.8 wt%, or 0.02 to 0.7 wt%, or 0.02 to 0.6 wt%, or 0.03 to 0.6 wt%, or 0.04 to 0.6 wt%, based on the total weight of the composition.

[0095] In the most preferred embodiment, the total amount of the compound having formula (A) in the composition is in the range of 0.05 to 0.6 wt % based on the total weight of the composition.

[0096] In a preferred embodiment, the UV absorber is selected from 2-(2′-hydroxyphenyl)benzotriazole, 2-hydroxybenzophenone, 2-(2-hydroxyphenyl)-1,3,5-triazine, cyanoacrylate, oxanilide, benzoxazinones, esters of substituted and unsubstituted benzoic acid, or a mixture of two or more thereof.

[0097] Preferably, 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(5′-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-5′-(1,1,3,3-tetramethylbutyl)phenyl)benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-methyl phenyl)-5-chloro-benzotriazole, 2-(3′-sec-butyl-5′-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-4′-octyloxyphenyl)benzotriazole, 2-(3′,5′-di-tert-amyl-2′-hydroxyphenyl)benzotriazole, 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-octyloxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-5 '-[2-(2-ethylhexyloxy)-carbonylethyl]-2'-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)-carbonylethyl]-2'-hydroxyphenyl)-5-chloro-benzotriazole benzotriazole, 2-(3′-dodecyl-2′-hydroxy-5′-methylphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-isooctyloxycarbonylethyl)phenylbenzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; transesterification product of 2-[3′-tert-butyl-5′-(2-methoxycarbonylethyl)-2′-hydroxyphenyl]-2H-benzotriazole and polyethylene glycol 300; , wherein R = 3′-tert-butyl-4′-hydroxy-5′-2H-benzotriazol-2-ylphenyl, 2-[2′-hydroxy-3′-(α,α-dimethylbenzyl)-5′-(1,1,3,3-tetramethylbutyl)-phenyl]benzotriazole, 2-[2′-hydroxy-3′-(1,1,3,3-tetramethylbutyl)-5′-(α,α-dimethylbenzyl)-phenyl]benzotriazole, or a mixture of two or more thereof.

[0098] More preferably, the 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol], 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-methylphenyl)-5-chloro-benzotriazole, or a mixture thereof.

[0099] Preferably, the 2-hydroxybenzophenone is selected from 2-hydroxy-4-hydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 2-hydroxy-4-decyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2-hydroxy-4,2′,4′-trihydroxybenzophenone, 2-hydroxy-2′-hydroxy-4,4′-dimethoxybenzophenone derivatives, 1,4-bis(4-benzoyl-3-hydroxyphenoxy)-butane, or a mixture of two or more thereof.

[0100] Preferably, the 2-(2-hydroxyphenyl)-1,3,5-triazine is selected from 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-propoxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-tridecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, oxazine, 2-[2-hydroxy-4-(2-hydroxy-3-butoxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[4-(dodecyloxy / tridecyloxy-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, )-4,6-diphenyl-1,3,5-triazine, 2,4,6-tris[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)-4-(4-methoxyphenyl)-6-phenyl-1,3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl}-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(4-[2-ethylhexyloxy]-2-hydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl} 2-[4-[2-hydroxy-3-tridecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[4-[2-hydroxy-3-dodecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[4-[2-hydroxy-3-dodecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[4-[4,6-bis((1,1'-biphenyl)-4-yl)-1,3,5-triazine]-5-triazine-2-yl)-3-hydroxyphenoxy)propionic acid isooctyl ester, bis-ethylhexyloxyphenol methoxyphenyl triazine, or a mixture of two or more thereof.

[0101] The cyanoacrylate UV absorber is preferably selected from α-cyano-β,β-diphenyl ethyl acrylate, α-cyano-β,β-diphenyl acrylate isooctyl ester, tetrakis(α-cyano-β,β-diphenyl acrylate)neopentyl ester, pentaerythritol tetrakis(2-cyano-3,3-diphenyl acrylate), 2-cyano-3,3-diphenyl ethyl acrylate, (2-ethylhexyl)-2-cyano-3,3-diphenyl acrylate, or a mixture of two or more thereof. More preferably, the cyanoacrylate UV absorber is pentaerythritol tetrakis(2-cyano-3,3-diphenyl acrylate).

[0102] The oxalanilide is preferably selected from 4,4′-dioctyloxyoxalanilide, 2,2′-diethoxyoxalanilide, 2,2′-dioctyloxy-5,5′-di-tert-butyloxalanilide, 2,2′-bis-dodecyloxy-5,5′-di-tert-butyloxalanilide, 2-ethoxy-2′-ethyloxalanilide, N,N′-bis(3-dimethylaminopropyl)oxalamide, 2-ethoxy-5-tert-butyl-2′-ethyloxalanilide and a mixture thereof with 2-ethoxy-2′-ethyl-5,4′-di-tert-butyloxalanilide, a mixture of o- and p-methoxy-disubstituted oxalanilides, a mixture of o- and p-ethoxy-disubstituted oxalanilides, or a mixture of two or more thereof. More preferably, the oxalanilide is 2-ethoxy-2′-ethyloxalanilide.

[0103] In a preferred embodiment, the total amount of the UV absorber in the composition is in the range of 0.05 to 10 wt % based on the total weight of the composition.

[0104] In more preferred embodiments, the total amount of UV absorber in the composition is in the range of 0.05 to 8 wt%, or 0.1 to 8 wt%, or 0.2 to 5 wt%, or 0.3 to 5 wt%, or 0.4 to 4 wt%, or 0.4 to 3 wt%, or 0.4 to 2.5 wt%, based on the total weight of the composition.

[0105] In the most preferred embodiment, the total amount of UV absorber in the composition is in the range of 0.4 to 2.5 wt % based on the total weight of the composition.

[0106] In a preferred embodiment, the composition comprises:

[0107] i. polycarbonate in an amount ranging from 90 to 99.9 wt % based on the total weight of the composition:

[0108] ii. at least one compound of formula (A) selected from formula (A-1), (A-2), (A-3), (A-4), (A-5), (A-6) or (A-7) in an amount ranging from 0.02 to 0.8 wt % based on the total weight of the composition,

[0109]

[0110]

[0111]

[0112] iii. at least one UV absorber other than the compound of formula (A) in an amount ranging from 0.4 to 2.5 wt %, based on the total weight of the composition.

[0113] In preferred embodiments, the composition further comprises at least one antioxidant.

[0114] The antioxidant is preferably selected from phenolic antioxidants, organophosphorus stabilizers, or mixtures thereof.

[0115] More preferably, the phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylene-diamide, 1,3,5-tris[3,5-di-tert-butyl-4-hydroxybenzyl]isocyanurate , 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-butyl(3,5-di-tert-butyl-4-hydroxybenzyl)malonate), a blend of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and tris[2,4-di-tert-butylphenyl]phosphite, or a mixture of two or more thereof.

[0116] Most preferably, the phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, or a blend of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris[2,4-di-tert-butylphenyl]phosphite.

[0117] The organophosphorus stabilizer is preferably selected from organophosphites, organophosphonites, organophosphines, or a mixture of two or more thereof.

[0118] More preferably, the organic phosphite is tris(2,4-di-tert-butylphenyl)phosphite.

[0119] More preferably, the organic phosphine is triphenylphosphine.

[0120] In a preferred embodiment, the total amount of antioxidant in the composition is in the range of 0.01 to 2 wt % based on the total weight of the composition.

[0121] In more preferred embodiments, the total amount of antioxidant in the composition ranges from 0.05 to 1.5 wt%, or 0.05 to 1 wt%, or 0.05 to 0.5 wt%, based on the total weight of the composition.

[0122] In the most preferred embodiment, the total amount of antioxidant in the composition is in the range of 0.08 to 0.2 wt % based on the total weight of the composition.

[0123] In a preferred embodiment, the weight ratio of the compound having formula (A) to at least one UV absorber other than the compound having formula (A) is in the range of 1:50 to 50:1.

[0124] In a more preferred embodiment, the weight ratio of the compound having formula (A) to at least one UV absorber other than the compound having formula (A) is in the range of 1:45 to 45:1.

[0125] In even more preferred embodiments, the weight ratio of the compound of formula (A) to at least one UV absorber other than the compound of formula (A) is in the range of 1:40 to 40:1 or 1:35 to 35:1 or 1:30 to 30:1.

[0126] In the most preferred embodiments, the weight ratio of the compound having formula (A) to at least one UV absorber other than the compound having formula (A) is in the range of 1:25 to 25:1 or 1:23 to 23:1.

[0127] In an even more preferred embodiment, the weight ratio of the compound having formula (A) to the at least one UV absorber other than the compound having formula (A) is from 1:3 to 1:23.

[0128] In a preferred embodiment, the weight ratio of at least one antioxidant to the compound of formula (A) (in the absence of a sterically hindered amine light stabilizer as defined below) is in the range of 1:0.1 to 1:10, more preferably in the range of 1:0.5 to 1:7.5, and even more preferably in the range of 1:1.25 to 1:7.5.

[0129] In a preferred embodiment, the weight ratio of at least one antioxidant to UV absorber other than the compound of formula (A) (in the absence of sterically hindered amine light stabilizers as defined below) is in the range of 1:22 to 1:30, more preferably 1:22.5 to 1:28.5.

[0130] In a preferred embodiment, the composition further comprises at least one sterically hindered amine light stabilizer.

[0131] In a more preferred embodiment, the sterically hindered amine light stabilizer is selected from bis(1-undecyloxy-2,2,6,6-tetramethyl-4-piperidinyl) carbonate, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(2,2,6,6-tetramethyl-4-piperidinyl) succinate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) n-butyl-3,5-di-tert-butyl-4-hydroxybenzyl malonate, poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid ), a linear or cyclic condensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, tris(2,2,6,6-tetramethyl-4-piperidinyl)nitrilotriacetate, tetrakis(2,2,6,6-tetramethyl-4-piperidinyl)-1,2,3,4-butanetetracarboxylate, 1,1′-(1,2-ethanediyl)-bis(3,3,5,5-tetramethylpiperazinone), 4-benzoyl-2,2,6,6-tetramethylpiperidine, 4-stearyloxy-2,2,6,6-tetramethylpiperidine, bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2-hydroxy-3, 5-di-tert-butylbenzyl) malonate, 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl) succinate, linear or cyclic condensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine, condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, 1,2-bis(3-aminopropylamino)ethane, condensate of 4,6-di-chloro-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)pyrrolidine-2,5-dione, 3-dodecyl-1-(1,2,2,6,6-pentamethyl-4-piperidinyl)pyrrolidine-2,5-dione, a mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine, N,N′-bis(2,2,6,1,6-diamine and 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensation product of hexamethylenediamine and 2,4,6-trichloro-1,3,5-triazine and N,N-dibutylamine and 4-butylamino-2,2,6,6-tetramethylpiperidine; N-(2,2,6,6-tetramethyl-4-piperidinyl)-n-dodecylsuccinimide, N-(1,2,2,6,6-pentamethyl-4-piperidinyl)-n-dodecylsuccinimide, 2-undecyl-7,7, 9,9-Tetramethyl-1-oxa-3,8-diaza-4-oxo-spiro[4,5]decane, reaction products of 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxo-spiro[4,5]decane and epichlorohydrin, 1,1-bis(1,2,2,6,6-pentamethyl-4-piperidinyloxycarbonyl)-2-(4-methoxyphenyl)ethylene, N,N′-bis-formyl-N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine, diester of 4-methoxymethylenemalonic acid with 1,2,2,6,6-pentamethyl-4-hydroxypiperidine, poly[methylpropyl-3-oxy-4-(2,2,6,6-tetramethyl-4-piperidinyl)] Siloxane, reaction products of maleic anhydride-α-olefin copolymers with 2,2,6,6-tetramethyl-4-aminopiperidine or 1,2,2,6,6-pentamethyl-4-aminopiperidine, 2,4-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N-butylamino]-6-(2-hydroxyethyl)amino-1,3,5-triazine, 5-(2-ethylhexanoyl)oxymethyl-3,3,5-trimethyl-2-morpholinone, reaction products of 2,4-bis[(1-cyclohexyloxy-2,2,6,6-piperidin-4-yl)butylamino]-6-chloro-s-triazine with N,N′-bis(3-aminopropyl)ethylenediamine, 1,3,5-tri(N-cyclohexyl-N-(2,2,6,6 -tetramethylpiperazin-3-one-4-yl)amino)-s-triazine, 1,3,5-tri(N-cyclohexyl-N-(1,2,2,6,6-pentamethylpiperazin-3-one-4-yl)amino)-s-triazine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-N,N′-diformylhexamethylenediamine, a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate, 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,A mixture of 1,2-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid), bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate, a mixture of 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, N, 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and morpholine-2,4,6-trichloro-1,3,5-triazine, polymer methylation products, N 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine polymer with 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine, N 1 , N 6 -bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and morpholine-2,4,6-trichloro-1,3,5-triazine polymer methylation reaction product and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol mixture, N 1 , N 6 - a polymer of bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol, or a mixture of two or more thereof.

[0132] In a most preferred embodiment, the sterically hindered amine light stabilizer is selected from a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, a mixture of 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid), bis(1,2,2,6,6-pentamethyl-4 bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)sebacate, 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, or a mixture of two or more thereof.

[0133] In a preferred embodiment, the total amount of the sterically hindered amine light stabilizer is in the range of 0.01 to 5 wt % based on the total weight of the composition.

[0134] In a more preferred embodiment, the total amount of the sterically hindered amine light stabilizer is in the range of 0.05 to 1 wt % based on the total weight of the composition.

[0135] In a more preferred embodiment, the total amount of the sterically hindered amine light stabilizer is in the range of 0.05 to 0.5 wt % based on the total weight of the composition.

[0136] In the most preferred embodiment, the total amount of sterically hindered amine light stabilizer is 0.1 wt % based on the total weight of the composition. In an embodiment, the weight ratio of the compound of formula (A) to the sterically hindered amine light stabilizer is in the range of 1:5 to 5:1.

[0137] In a preferred embodiment, the weight ratio of the compound having formula (A) to the sterically hindered amine light stabilizer is in the range of 1:4 to 4:1.

[0138] In a more preferred embodiment, the weight ratio of the compound having formula (A) to the sterically hindered amine light stabilizer is in the range of 1:3 to 3:1.

[0139] In a more preferred embodiment, the weight ratio of the compound having formula (A) to the sterically hindered amine light stabilizer is in the range of 1:2 to 2:1.

[0140] In the most preferred embodiment, the weight ratio of the compound having formula (A) to the sterically hindered amine light stabilizer is 1:1.

[0141] In an embodiment, the weight ratio of the sterically hindered amine light stabilizer to the UV absorber other than the compound having formula (A) is in the range of 1:1 to 1:5.

[0142] In a preferred embodiment, the weight ratio of the sterically hindered amine light stabilizer to the UV absorber other than the compound having formula (A) is in the range of 1:2 to 1:5.

[0143] In a more preferred embodiment, the weight ratio of the sterically hindered amine light stabilizer to the UV absorber other than the compound having formula (A) is in the range of 1:3 to 1:5.

[0144] In the most preferred embodiment, the weight ratio of the sterically hindered amine light stabilizer to the UV absorber other than the compound having formula (A) is in the range of 1:4 to 1:5.

[0145] In a preferred embodiment, the composition further comprises at least one compound of formula (B) having formula (I), formula (II), formula (III) or formula (IV).

[0146] Compound (B) having the general formula (I):

[0147]

[0148] in

[0149] A1 is selected from a linear or branched substituted or unsubstituted C2-C 18 Alkylene, substituted or unsubstituted C5-C7 cycloalkylene and C1-C4 alkylene di(C5-C7 cycloalkylene),

[0150] A2 is independently selected from H, linear or branched substituted or unsubstituted C1-C 12 Alkyl, C1-C 12 Alkoxy, substituted or unsubstituted C5-C 12 Cycloalkyl and C5-C 12 Cycloalkoxy,

[0151] A3 and A4 are independently selected from H, linear or branched substituted or unsubstituted C1-C 12 Alkyl, substituted or unsubstituted C5-C 12 A cycloalkyl group and a group having the formula (a-1),

[0152]

[0153] or

[0154] A3 and A4 together with the nitrogen atom to which they are bonded form a 5- to 10-membered heterocyclic ring; and

[0155] a is an integer ranging from 1 to 20, and the repeating units are the same or different.

[0156] Straight-chain or branched unsubstituted C1-C 12 Representative examples of alkyl include, but are not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 2-ethylbutyl, n-pentyl, isopentyl, 2-methylbutyl, 3-methylbutyl, 1-methylpentyl, 1,3-dimethylbutyl, n-hexyl, cyclohexyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 3,3-dimethylbutyl, 1-methylhexyl, n-heptyl, 2-methylhexyl, 2-ethylpentyl, isoheptyl, 1,1,3,3-tetramethylbutyl, 1-methylheptyl, 3-methylheptyl, 2-propylheptyl, n-octyl, isooctyl, 2-ethylhexyl, 1,1,3-trimethylhexyl, 1,1,3,3-tetramethylpentyl, n-nonyl, isononyl, n-decyl, isodecyl, n-undecyl, isoundecyl, 1-methylundecyl, n-dodecyl, isododecyl, n-tridecyl, isotridecyl and 1,1,3,3,5,5-hexamethylhexyl.

[0157] C1-C 12 Representative examples of alkoxy include, but are not limited to, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, pentyloxy, isopentyloxy, hexyloxy, heptyloxy, octyloxy, nonyloxy, decyloxy, undecyloxy, and dodecyloxy.

[0158] In a preferred embodiment, the alkoxy group is selected from the group consisting of methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, pentyloxy, isopentyloxy, hexyloxy, heptyloxy and octyloxy. In a more preferred embodiment, the alkoxy group is propoxy.

[0159] C5-C 12 Representative examples of cycloalkyl are cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl and cyclododecyl.

[0160] C5-C 12 Representative examples of cycloalkoxy are cyclopentyloxy, cyclohexyloxy, cycloheptyloxy, cyclooctyloxy, cyclononyloxy, cyclodecyloxy, cycloundecyloxy and cyclododecyloxy.

[0161] In a preferred embodiment, the cycloalkoxy group is cyclohexyloxy.

[0162] A preferred example of the phenyl group substituted by 1, 2 or 3 C1-C4 alkyl groups is 2,4-dimethylphenyl.

[0163] Preferred C2-C 18 The alkylene group is ethylene, propylene, trimethylene, tetramethylene, pentamethylene, 2,2-dimethyltrimethylene and hexamethylene. In a more preferred embodiment, the alkylene group is hexamethylene.

[0164] An example of the C5-C7 cycloalkylene group is cyclohexylene.

[0165] An example of a C1-C4 alkylenedi(C5-C7 cycloalkylene) is methylenedicyclohexylene.

[0166] Examples of radicals A3 and A4 which, together with the nitrogen atom to which they are bound, form a 5- to 10-membered heterocyclic ring are 1-pyrrolidinyl, piperidinyl, morpholinyl, 1-piperazinyl, 4-methyl-1-piperazinyl, 1-hexahydroazepinyl, 5,5,7-trimethyl-1-homopiperazinyl or 4,5,5,7-tetramethyl-1-homopiperazinyl, preferably morpholinyl.

[0167] In the compound (B) having the general formula (I), the terminal group attached to the diamino residue is, for example, hydrogen or a group having the formula:

[0168]

[0169] The terminal group attached to the triazine group is, for example, a group having the formula:

[0170] or a group having the formula

[0171] In preferred embodiments, A1 is hexamethylene, and A2 is hydrogen and propoxy.

[0172] In a preferred embodiment, A3 is butyl,

[0173]

[0174] In a preferred embodiment, A4 is butyl.

[0175] In a preferred embodiment, a is an integer in the range of 1 to 10.

[0176] Compound (B) having the general formula (II):

[0177]

[0178] in

[0179] x1 and x2 are independently selected from C1 to C 30 Alkoxy,

[0180] In a preferred embodiment, x1 and x2 are independently selected from linear or branched unsubstituted C1 to C 30 Alkoxy.

[0181] Straight or branched unsubstituted C1 to C 30 Representative examples of alkoxy are methoxy, ethoxy, propoxy, butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy, nonyloxy, decyloxy, undecyloxy, dodecyloxy, tridecyloxy, tetradecyloxy, pentadecyloxy, hexadecyloxy, heptadecyloxy, octadecyloxy, nonadecyloxy, eicosyloxy, heneicosyloxy, docosyloxy, tricosyloxy, tetracosyloxy, pentacosyloxy, hexacosyloxy, heptacosyloxy, octacosyloxy, nonacosyloxy, and triacosyloxy.

[0182] In a preferred embodiment, x1 and x2 are each undecyloxy.

[0183] Compound (B) having the general formula (III):

[0184]

[0185] in

[0186] Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl,

[0187] Y2 is C1 to C 30 Alkyl; and

[0188] In a preferred embodiment, Y1 is a linear or branched unsubstituted C3 to C 20 alkyl.

[0189] In an embodiment, Y1 is selected from the group consisting of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl.

[0190] In a preferred embodiment, Y1 is selected from propyl or dodecyl.

[0191] In a preferred embodiment, Y2 is a linear or branched unsubstituted C1 to C 30 alkyl.

[0192] In an embodiment, Y2 is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, hexacosyl, heptacosyl, octacosyl, nonacosyl, and triacontyl.

[0193] In a preferred embodiment, Y2 is selected from pentadecyl or heptadecyl.

[0194] Compound (B) having the general formula (IV):

[0195]

[0196] in

[0197] Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl,

[0198] Y3 is independently selected from linear or branched substituted or unsubstituted C3 to C 20 Alkyl and C3 to C 20 Alkylidene,

[0199] X is a C2 to C8 alkyl group,

[0200] n is an integer ranging from 1 to 8.

[0201] In a preferred embodiment, Y3 is selected from the group consisting of: linear or branched unsubstituted C3 to C 20 Alkyl and C3 to C 20 Alkylene.

[0202] Representative examples of alkylene groups having up to 20 carbon atoms are methylene, ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene, undecylene, dodecylene, tridecylene, tetradecylene, pentadecylene, hexadecylene, heptadecylene, octadecylene, nonadecylene, and eicosylene.

[0203] In a preferred embodiment, Y1 is selected from decyl.

[0204] In a preferred embodiment, Y3 is selected from decyl or nonylene.

[0205] In a preferred embodiment, X is selected from the group consisting of ethyl, propyl, butyl, pentyl, hexyl, heptyl and octyl.

[0206] In a more preferred embodiment, the compound having formula (B) is selected from formula (B-1), (B-2), (B-3), (B-4), (B-5), (B-6), (B-7), (B-8), or a mixture of two or more thereof.

[0207]

[0208] wherein a is an integer in the range of 1 to 10; and

[0209]

[0210]

[0211] Where n is 2

[0212] (B-8)

[0213] In a preferred embodiment, the composition further comprises at least one additive selected from the group consisting of an anti-scratch agent, a slip agent, an anti-blocking agent, a thermal filler, a pigment, an anti-fog agent or an anti-fog agent.

[0214] The composition may also contain various conventional additives, such as:

[0215] 1. Antioxidants

[0216] 1.1. Alkylated monophenols , such as 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-ethylphenol, 2,6-di-tert-butyl-4-n-butylphenol, 2,6-di-tert-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2-(α-methylcyclohexyl)-4,6-dimethylphenol, 2,6-di-octadecyl-4-methylphenol, 2,4,6 -tricyclohexylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, linear or side-branched nonylphenols such as 2,6-di-nonyl-4-methylphenol, 2,4-dimethyl-6-(1′-methylundecane-1′-yl)phenol, 2,4-dimethyl-6-(1′-methylheptadecan-1′-yl)phenol, 2,4-dimethyl-6-(1′-methyltridecane-1′-yl)phenol, and mixtures thereof.

[0217] 1.2. Alkylthiomethylphenol , for example, 2,4-dioctylthiomethyl-6-tert-butylphenol, 2,4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-bis-dodecylthiomethyl-4-nonylphenol.

[0218] 1.3. Hydroquinone and alkylated hydroquinones, for example 2,6-di-tert-butyl-4-methoxyphenol, 2,5-di-tert-butylhydroquinone, 2,5-di-tert-amylhydroquinone, 2,6-diphenyl-4-octadecyloxyphenol, 2,6-di-tert-butylhydroquinone, 2,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyanisole, 3,5-di-tert-butyl-4-hydroxyphenyl stearate, bis(3,5-di-tert-butyl-4-hydroxyphenyl)adipate.

[0219] 1.4. Tocopherol , such as α-tocopherol, β-tocopherol, g-tocopherol, d-tocopherol and mixtures thereof (vitamin E).

[0220] 1.5. Hydroxylated thiodiphenyl ether , for example, 2,2′-thiobis(6-tert-butyl-4-methylphenol), 2,2′-thiobis(4-octylphenol), 4,4′-thiobis(6-tert-butyl-3-methylphenol), 4,4′-thiobis(6-tert-butyl-2-methylphenol), 4,4′-thiobis(3,6-di-sec-pentylphenol), 4,4′-bis(2,6-dimethyl-4-hydroxyphenyl) disulfide.

[0221] 1.6. Alkylene bisphenols, such as 2,2′-methylenebis(6-tert-butyl-4-methylphenol), 2,2′-methylenebis(6-tert-butyl-4-ethylphenol), 2,2′-methylenebis[4-methyl-6-(α-methylcyclohexyl)phenol], 2,2′-methylenebis(4-methyl-6-cyclohexylphenol), 2,2′-methylenebis(6-nonyl-4-methylphenol), 2,2′-methylenebis(4,6-di-tert-butylphenol), 2,2′-ethylenebis(4,6 -di-tert-butylphenol), 2,2′-ethylenebis(6-tert-butyl-4-isobutylphenol), 2,2′-methylenebis[6-(α-methylbenzyl)-4-nonylphenol], 2,2′-methylenebis[6-(α,α-dimethylbenzyl)-4-nonylphenol], 4,4′-methylenebis(2,6-di-tert-butylphenol), 4,4′-methylenebis(6-tert-butyl-2-methylphenol), 1,1-bis(5-tert-butyl-4-hydroxy-2-methylphenol phenyl) butane, 2,6-bis(3-tert-butyl-5-methyl-2-hydroxybenzyl)-4-methylphenol, 1,1,3-tri(5-tert-butyl-4-hydroxy-2-methylphenyl)butane, 1,1-bis(5-tert-butyl-4-hydroxy-2-methyl-phenyl)-3-n-dodecylmercaptobutane, ethylene glycol bis[3,3-bis(3′-tert-butyl-4′-hydroxyphenyl)butyrate], bis(3-tert-butyl-4-hydroxy-5-methyl-phenyl)dicyclopentadiene, [2-(3'-tert-butyl-2'-hydroxy-5'-methylbenzyl)-6-tert-butyl-4-methylphenyl]terephthalate, 1,1-bis-(3,5-dimethyl-2-hydroxyphenyl)butane, 2,2-bis(3,5-di-tert-butyl-4-hydroxyphenyl)propane, 2,2-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)-4-n-dodecylmercaptobutane, 1,1,5,5-tetrakis-(5-tert-butyl-4-hydroxy-2-methylphenyl)pentane.

[0222] 1.7. O-, N- and S-benzyl compounds , for example 3,5,3′,5′-tetra-tert-butyl-4,4′-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3,5-dimethylbenzylthioacetate, tridecyl-4-hydroxy-3,5-di-tert-butylbenzylthioacetate, tris(3,5-di-tert-butyl-4-hydroxybenzyl)amine, bis(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)dithioterephthalate, bis(3,5-di-tert-butyl-4-hydroxybenzyl)sulfide, isooctyl-3,5-di-tert-butyl-4-hydroxybenzylthioacetate.

[0223] 1.8. Hydroxybenzylated malonates, for example, bis-octadecyl-2,2-bis(3,5-di-tert-butyl-2-hydroxybenzyl)malonate, bis-octadecyl-2-(3-tert-butyl-4-hydroxy-5-methylbenzyl)malonate, bis-dodecylmercaptoethyl-2,2-bis(3,5-di-tert-butyl-4-hydroxybenzyl)malonate, bis[4-(1,1,3,3-tetramethylbutyl)phenyl]-2,2-bis(3,5-di-tert-butyl-4-hydroxybenzyl)malonate.

[0224] 1.9. Aromatic hydroxybenzyl compounds , for example, 1,4-bis(3,5-di-tert-butyl-4-hydroxybenzyl)-2,3,5,6-tetramethylbenzene, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)phenol.

[0225] 1.10. Triazine compounds , for example, 2,4-bis(octylmercapto)-6-(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine, 2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyanilino)-1,3,5-triazine, 2-octylmercapto-4,6-bis(3,5-di-tert-butyl-4-hydroxyphenoxy)-1,3,5-triazine, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenoxy)-1,3,5-triazine, )-1,2,3-triazine, 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate, 2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenylethyl)-1,3,5-triazine, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)-hexahydro-1,3,5-triazine, 1,3,5-tris(3,5-dicyclohexyl-4-hydroxybenzyl)isocyanurate.

[0226] 1.11. Benzylphosphonate , for example, dimethyl-2,5-di-tert-butyl-4-hydroxybenzylphosphonate, diethyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, di-octadecyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate, di-octadecyl-5-tert-butyl-4-hydroxy-3-methylbenzylphosphonate, calcium salt of monoethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate.

[0227] 1.12. Acylaminophenol , such as 4-hydroxylauranilide, 4-hydroxystearanilide, N-(3,5-di-tert-butyl-4-hydroxyphenyl)carbamic acid octyl ester.

[0228] 1.13. Esters of b-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid and: monohydric alcohol or polyhydric alcohol, for example methanol, ethanol, n-octanol, isooctyl alcohol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propylene glycol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thioundecanol, 3-thiopentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0229] 1.14. Esters of b-(5-tert-butyl-4-hydroxy-3-methylphenyl)propionic acid : monohydric or polyhydric alcohols, for example methanol, ethanol, n-octanol, isooctyl alcohol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propylene glycol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thioundecanol, 3-thiopentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane; 3,9-bis[2-{3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane.

[0230] 1.15. Esters of b-(3,5-dicyclohexyl-4-hydroxyphenyl)propionic acid and : monohydric alcohol or polyhydric alcohol, for example methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propylene glycol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thioundecanol, 3-thiopentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0231] 1.16.3, Esters of 5-di-tert-butyl-4-hydroxyphenylacetic acid and : monohydric alcohol or polyhydric alcohol, for example methanol, ethanol, octanol, octadecanol, 1,6-hexanediol, 1,9-nonanediol, ethylene glycol, 1,2-propylene glycol, neopentyl glycol, thiodiethylene glycol, diethylene glycol, triethylene glycol, pentaerythritol, tris(hydroxyethyl)isocyanurate, N,N′-bis(hydroxyethyl)oxamide, 3-thioundecanol, 3-thiopentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1-phospha-2,6,7-trioxabicyclo[2.2.2]octane.

[0232] 1.17. b-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid amide, such as N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylenediamide, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)trimethylenediamide, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hydrazide, N,N′-bis[2-(3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionyloxy)ethyl]oxalamide ( XL-1, supplied by Uniroyal).

[0233] 1.18. Ascorbic acid (Vitamin C)

[0234] 1.19. Amine antioxidants, for example, N,N′-di-isopropyl-p-phenylenediamine, N,N′-di-sec-butyl-p-phenylenediamine, N,N′-bis(1,4-dimethylpentyl)-p-phenylenediamine, N,N′-bis(1-ethyl-3-methylpentyl)-p-phenylenediamine, N,N′-bis(1-methylheptyl)-p-phenylenediamine, N,N′-dicyclohexyl-p-phenylenediamine, N,N′-diphenyl-p-phenylenediamine, N,N′-bis(2-naphthyl)-p-phenylenediamine, N-isopropyl-N′-phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine, N-(1-methyl 4-(p-toluenesulfonyl)diphenylamine, N,N'-dimethyl-N,N'-di-sec-butyl-p-phenylenediamine, diphenylamine, N-allyl diphenylamine, 4-isopropoxy diphenylamine, N-phenyl-1-naphthylamine, N-(4-tert-octylphenyl)-1-naphthylamine, N-phenyl-2-naphthylamine, octylated diphenylamine (e.g., p, p'-di-tert-octyl diphenylamine), 4-n-butylaminophenol, 4-butyrylaminophenol, 4-nonanoylaminophenol, 4-dodecanoylaminophenol, 4-decanoylaminophenol, Octacarboxylic acid aminophenol, bis(4-methoxyphenyl)amine, 2,6-di-tert-butyl-4-dimethylaminomethylphenol, 2,4′-diaminodiphenylmethane, 4,4′-diaminodiphenylmethane, N,N,N′,N′-tetramethyl-4,4′-diaminodiphenylmethane, 1,2-bis[(2-methylphenyl)amino]ethane, 1,2-bis(phenylamino)propane, (o-tolyl)biguanide, bis[4-(1′,3′-dimethylbutyl)phenyl]amine, tert-octylated N-phenyl-1-naphthylamine, mixtures of mono- and di-alkylated tert-butyl / tert-octyl diphenylamines mixtures of mono- and di-alkylated nonyldiphenylamines, mixtures of mono- and di-alkylated dodecyldiphenylamines, mixtures of mono- and di-alkylated isopropyl / isohexyldiphenylamines, mixtures of mono- and di-alkylated tert-butyldiphenylamines, 2,3-dihydro-3,3-dimethyl-4H-1,4-benzothiazine, phenothiazine, mixtures of mono- and di-alkylated tert-butyl / tert-octylphenothiazines, mixtures of mono- and di-alkylated tert-octyl-phenothiazines, N-allylphenothiazine, N,N,N′,N′-tetraphenyl-1,4-diaminobut-2-ene.

[0235] 2.UV absorbers and light stabilizers

[0236] 2.1. Esters of substituted and unsubstituted benzoic acids, for example 4-tert-butyl-phenyl salicylate, phenyl salicylate, octylphenyl salicylate, dibenzoylresorcinol, bis(4-tert-butylbenzoyl)resorcinol, benzoylresorcinol, 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, 2-methyl-4,6-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate.

[0237] 2.2. Acrylate , such as ethyl α-cyano-β,β-diphenylacrylate, isooctyl α-cyano-β,β-diphenylacrylate, methyl α-carbonylmethoxycinnamate, methyl α-cyano-β-methyl-p-methoxycinnamate, butyl α-cyano-β-methyl-p-methoxycinnamate, methyl α-methoxycarbonyl-p-methoxycinnamate, N-(β-methoxycarbonyl-β-cyanovinyl)-2-methylindoline, tetra(α-cyano-β,β-diphenylacrylate neopentyl).

[0238] 2.3. Nickel compounds , for example nickel complexes of 2,2′-thio-bis[4-(1,1,3,3-tetramethylbutyl)phenol], such as the 1:1 or 1:2 complex, with or without additional ligands such as n-butylamine, triethanolamine or N-cyclohexyldiethanolamine, nickel dibutyldithiocarbamate, nickel salts of monoalkyl esters of 4-hydroxy-3,5-di-tert-butylbenzylphosphonic acid, such as the methyl or ethyl ester, nickel complexes of ketoximes, such as 2-hydroxy-4-methylphenylundecylketoxime, nickel complexes of 1-phenyl-4-lauroyl-5-hydroxypyrazole, with or without additional ligands.

[0239] 2.4.2-(2-Hydroxyphenyl)-1,3,5-triazine, for example, 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-propoxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)- )-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-tridecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-butoxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine 5-triazine, 2-[4-(dodecyloxy / tridecyloxy-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-methoxyphenyl)-4,6-diphenyl-1,3,5-triazine, 2,4,6-tris[2-hydroxy-4-(3 -Butyloxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)-4-(4-methoxyphenyl)-6-phenyl-1,3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl}-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(4-[2-ethylhexyloxy]-2-hydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine.

[0240] 2.5. Benzal-bis-malonate: 1,1,3,3′-tetraethyl-2,2′-(1,4-phenylenedimethylene)bis[malonate]

[0241] 3. Metal deactivator , for example, N,N′-diphenyloxamide, N-salicylaldehyde-N′-salicylic acid hydrazide, N,N′-bis(salicylic acid)hydrazide, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hydrazide, 3-salicylic acid amino-1,2,4-triazole, bis(benzylidene)oxalyl dihydrazide, oxalanilide, isophthalic acid dihydrazide, sebacoyl bisphenylhydrazide, N,N′-diacetyladipoyl dihydrazide, N,N′-bis(salicylic acid)oxalyl dihydrazide, N,N′-bis(salicylic acid)thiopropionyl dihydrazide.

[0242] 4. Phosphites and phosphonites , for example triphenyl phosphite, diphenyl alkyl phosphite, phenyl dialkyl phosphite, tris(nonylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl pentaerythritol diphosphite, tris(2,4-di-tert-butylphenyl) phosphite, diisodecyl pentaerythritol diphosphite, bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis(2,4-di-cumylphenyl) pentaerythritol diphosphite, bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite Phosphites, diisodecyl pentaerythritol diphosphite, bis(2,4-di-tert-butyl-6-methylphenyl) pentaerythritol diphosphite, bis(2,4,6-tri(tert-butylphenyl) pentaerythritol diphosphite, tristearyl sorbitol triphosphite, tetrakis(2,4-di-tert-butylphenyl) 4,4′-biphenylene diphosphite, 6-isooctyloxy-2,4,8,10-tetra-tert-butyl-12H-dibenzo[d,g]-1,3,2-dioxaphosphooctane cin), bis(2,4-di-tert-butyl-6-methylphenyl)methyl phosphite, bis(2,4-di-tert-butyl-6-methylphenyl)ethyl phosphite, 6-fluoro-2,4,8,10-tetra-tert-butyl-12-methyl-dibenzo[d,g]-1,3,2-dioxaphosphocene, 2,2′,2″-nitrilo[triethyltri(3,3′,5,5′-tetra-tert-butyl-1,1′-biphenyl-2,2′-diyl)phosphite], 2-ethylhexyl(3,3′,5,5′-tetra-tert-butyl 1,1′-biphenyl-2,2′-diyl) phosphite, 5-butyl-5-ethyl-2-(2,4,6-tri-tert-butylphenoxy)-1,3,2-dioxaphosphirane, phosphite, mixed 2,4-bis(1,1-dimethylpropyl)phenyl and 4-(1,1-dimethylpropyl)phenyl triesters (CAS: 939402-02-5), triphenyl phosphite polymer with α-hydrogen-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)]C10-16-alkyl esters (CAS: 1227937-46-3), triphenyl phosphite polymer with 1,4-cyclohexanedimethanol and polypropylene glycol C10-16 alkyl esters (CAS registration number: 1821217-71-3).

[0243] The following phosphites are particularly preferred:

[0244] Tris(2,4-di-tert-butylphenyl)phosphite ( Ciba Specialty Chemicals Inc.), tris(nonylphenyl)phosphite,

[0245]

[0246] 5. Hydroxylamine , for example, N,N-dibenzylhydroxylamine, N,N-diethylhydroxylamine, N,N-dioctylhydroxylamine, N,N-dilaurylhydroxylamine, N,N-bis-tetradecylhydroxylamine, N,N-bis-hexadecylhydroxylamine, N,N-bis-octadecylhydroxylamine, N-hexadecyl-N-octadecylhydroxylamine, N-heptadecyl-N-octadecylhydroxylamine, N,N-dialkylhydroxylamine derived from hydrogenated tallow amine.

[0247] 6. Nitrones , for example, N-benzyl-α-phenylnitrone, N-ethyl-α-methylnitrone, N-octyl-α-heptylnitrone, N-lauryl-α-undecylnitrone, N-tetradecyl-α-tridecylnitrone, N-hexadecyl-α-pentadecylnitrone, N-octadecyl-α-heptadecylnitrone, N-hexadecyl-α-heptadecylnitrone, N-octadecyl-α-pentadecylnitrone, N-heptadecyl-α-heptadecylnitrone, N-octadecyl-α-hexadecylnitrone, nitrones derived from N,N-dialkylhydroxylamines derived from hydrogenated tallow amine.

[0248] 7.Thiosynergist , for example, dilauryl thiodipropionate, dimyristyl thiodipropionate, pentaerythritol tetrakis[3-(dodecylthio)propionate], distearyl thiodipropionate, or distearyl disulfide.

[0249] 8. Peroxide scavenger , for example esters of β-thiodipropionic acid, such as the lauryl, stearyl, myristyl or tridecyl esters, mercaptobenzimidazole, or the zinc salt of 2-mercaptobenzimidazole, zinc dibutyldithiocarbamate, bis-octadecyl disulfide, pentaerythritol tetrakis(β-dodecylmercapto)propionate.

[0250] 9. Polyamide stabilizer , such as copper salts and divalent manganese salts in combination with iodides and / or phosphorus compounds.

[0251] 10. Alkaline stabilizer , such as melamine, polyvinyl pyrrolidone, dicyandiamide, triallyl cyanurate, urea derivatives, hydrazine derivatives, amines, polyamides, polyurethanes, alkali metal salts and alkaline earth metal salts of higher fatty acids (such as calcium stearate, zinc stearate, magnesium behenate, magnesium stearate, sodium ricinoleate and potassium palmitate), antimony pyrocatecholate or zinc pyrocatecholate.

[0252] 11. Nucleating agent, for example, inorganic substances such as talc, metal oxides such as titanium dioxide or magnesium oxide, preferably phosphates, carbonates or sulfates of alkaline earth metals; organic compounds such as monocarboxylic acids or polycarboxylic acids and their salts, for example 4-tert-butylbenzoic acid, adipic acid, diphenylacetic acid, sodium succinate or sodium benzoate; polymer compounds such as ionic copolymers (ionomers). Particularly preferred are 1,3:2,4-bis(3',4'-dimethylbenzylidene)sorbitol, 1,3:2,4-di(p-methyldibenzylidene)sorbitol, and 1,3:2,4-di(benzylidene)sorbitol.

[0253] 12. Fillers and reinforcing agents , for example calcium carbonate, silicates, surface treated silica (as described, for example, in US-A-2007 / 60,697 and US-A-2009 / 111,918), glass fibers, glass beads, asbestos, talc, kaolin, mica, barium sulfate, metal oxides and hydroxides, carbon black, graphite, wood flour and powders or fibers of other natural products, synthetic fibers.

[0254] 13. Other additives , such as plasticizers, lubricants, emulsifiers, pigments, rheological additives, catalysts, flow control agents, fluorescent brighteners, flame retardants, antistatic agents and blowing agents.

[0255] 14.Benzofuranoses and indolones , such as those disclosed in the following items: US 4,325,863; US 4,338,244; US 5,175,312; US 5,216,052; US 5,252,643; DE-A-4316611; DE-A-4316622; DE-A-4316876; EP-A-0589839, EP-A-0591102; EP-A-1291384, or 3-[4-(2-acetoxyethoxy)phenyl]-5,7-di-tert-butylbenzofuran-2-one, 5,7-di-tert-butyl-3-[4-(2-stearoyloxyethoxy)phenyl]benzofuran-2-one, 3,3′-bis[5,7 -di-tert-butyl-3-(4-[2-hydroxyethoxy]phenyl)benzofuran-2-one], 5,7-di-tert-butyl-3-(4-ethoxyphenyl)benzofuran-2-one, 3-(4-acetoxy-3,5-dimethylphenyl)-5,7-di-tert-butyl-benzofuran-2-one, 3-(3,5-dimethyl-4-pivaloyloxyphenyl)-5,7-di-tert-butylbenzofuran-2-one, 3-(3,4-dimethylphenyl)-5,7-di-tert-butylbenzofuran-2-one, 3-(2,3-dimethylphenyl)-5,7-di-tert-butylbenzofuran-2-one, 3-(2-acetyl-5-isooctylphenyl)-5-isooctylbenzofuran-2-one.

[0256] In another aspect, the presently claimed invention is directed to an additive mixture comprising:

[0257] I. at least one compound of formula (A) as defined above; and

[0258] II. At least one UV absorber as defined above.

[0259] In a preferred embodiment, the additive mixture further comprises at least one antioxidant as defined above; at least one sterically hindered amine light stabilizer as defined above; at least one compound of formula (B) as defined above; and at least one additive selected from scratch inhibitors, slip agents, anti-blocking agents, thermal fillers, pigments, anti-fog agents or anti-fog agents.

[0260] In yet another aspect, the presently claimed invention relates to the use of an additive mixture as defined above for enhancing the optical properties of molded or extruded articles, including multilayer articles.

[0261] The multilayer articles contain at least one layer consisting of the composition according to the invention.

[0262] These multilayer articles are preferably produced by coextrusion. Coextrusion is known per se (see, for example, EP-AO 110 221 and EP-AO 110 238).

[0263] The articles according to the invention have proven to be particularly advantageous in aging tests. They do not exhibit any disadvantages in the articles obtained from production. The optical properties of the coextruded polycarbonate sheets are significantly better, even with relatively small concentrations of UV absorbers, with HPT of formula (A), than when standard UV absorbers are used.

[0264] Therefore, another aspect of the present invention is an article comprising a composition as defined above.

[0265] In a preferred embodiment, the composition according to the invention is used for the production of shaped articles, in particular sheets and articles made therefrom, such as, for example, greenhouse glazing, conservatories, bus shelters, billboards, signs, safety shields, automotive glazing, windows, roofing, solid sheets, corrugated sheets, multi-wall sheets and multi-wall profiles.

[0266] In more detail, the composition according to the present invention can be used to prepare the following devices:

[0267] I-1) Automotive applications, particularly headlight glass, headlights, parking lights, taillights, stop lights and glass.

[0268] III-2) Venetian blinds (eg roller blinds).

[0269] III-3) Profiles of any geometric shape (window glass).

[0270] III-4) Glass substitutes, in particular extruded panels, glazing for buildings (one-piece, double-wall or multi-wall), aircraft, schools, extruded sheets, window films for architectural glazing, trains, transport, sanitary products and greenhouses.

[0271] The presently claimed invention provides one or more of the following advantages:

[0272] 1. An article prepared by using a combination of at least one compound having formula (A), at least one UV absorber other than the compound having formula (A), and polycarbonate improves the optical properties of a polycarbonate sheet or polycarbonate article exposed to light.

[0273] 2. A polycarbonate sheet or polycarbonate article having improved optical properties with respect to light exposure extends the life of the polycarbonate sheet or polycarbonate article.

[0274] 3. The long-lasting utility of polycarbonate sheets or polycarbonate products brings economic value.

[0275] In the following, specific embodiments of the presently claimed invention are described:

[0276] 1. A composition comprising:

[0277] i. polycarbonate in an amount ranging from 90 to 99.9 wt % based on the total weight of the composition:

[0278] ii. at least one compound of formula (A) selected from formula (A-1), (A-2), (A-3), (A-4), (A-5), (A-6) or (A-7) in an amount ranging from 0.02 to 0.8 wt % based on the total weight of the composition,

[0279]

[0280]

[0281]

[0282] iii. at least one UV absorber other than the compound of formula (A) in an amount ranging from 0.4 to 2.5 wt %, based on the total weight of the composition.

[0283] 2. The composition according to embodiment 1, wherein the polycarbonate is selected from homopolycarbonate, copolycarbonate, thermoplastic polyester carbonate, polycarbonate / acrylonitrile-butadiene-styrene terpolymer blend, polycarbonate / acrylic-styrene-acrylonitrile terpolymer thermoplastic alloy, polycarbonate / polybutylene terephthalate thermoplastic alloy blend, polycarbonate / polyethylene terephthalate thermoplastic alloy, or a thermoplastic alloy of polycarbonate and styrene-acrylonitrile.

[0284] 3. The composition of embodiment 1, wherein the UV absorber is selected from 2-(2′-hydroxyphenyl)benzotriazole, 2-hydroxybenzophenone, 2-(2-hydroxyphenyl)-1,3,5-triazine, cyanoacrylate, oxanilide, benzoxazinones, esters of substituted and unsubstituted benzoic acids, or mixtures of two or more thereof.

[0285] 4. The composition according to embodiment 3, wherein the 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(5′-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-5′-(1,1,3,3-tetramethylbutyl)phenyl)benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2'-hydroxy-5'-methylphenyl)-5-chloro-benzotriazole, 2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazole, 2-(2'-hydroxy-4'-octyloxyphenyl)benzotriazole, 2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole, 2-(3',5'-bis-(α,α-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3 '-tert-butyl-5'-[2-(2-ethylhexyloxy)-carbonylethyl]-2'-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole, 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)-carbonylethyl]-2'-hydroxyphenyl)-5-chloro-benzotriazole benzotriazole, 2-(3′-dodecyl-2′-hydroxy-5′-methylphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-isooctyloxycarbonylethyl)phenylbenzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; transesterification product of 2-[3′-tert-butyl-5′-(2-methoxycarbonylethyl)-2′-hydroxyphenyl]-2H-benzotriazole and polyethylene glycol 300; , wherein R = 3′-tert-butyl-4′-hydroxy-5′-2H-benzotriazol-2-ylphenyl, 2-[2′-hydroxy-3′-(α,α-dimethylbenzyl)-5′-(1,1,3,3-tetramethylbutyl)-phenyl]benzotriazole, 2-[2′-hydroxy-3′-(1,1,3,3-tetramethylbutyl)-5′-(α,α-dimethylbenzyl)-phenyl]benzotriazole, or a mixture of two or more thereof.

[0286] 5. The composition of embodiment 3 or embodiment 4, wherein the 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol], 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-methylphenyl)-5-chloro-benzotriazole, or a mixture thereof.

[0287] 6. The composition of embodiment 3, wherein the 2-hydroxybenzophenone is selected from 2-hydroxy-4-hydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 2-hydroxy-4-decyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2-hydroxy-4,2′,4′-trihydroxybenzophenone, 2-hydroxy-2′-hydroxy-4,4′-dimethoxybenzophenone derivatives, 1,4-bis(4-benzoyl-3-hydroxyphenoxy)-butane, or a mixture of two or more thereof.

[0288] 7. The composition of embodiment 3, wherein the 2-(2-hydroxyphenyl)-1,3,5-triazine is selected from 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-propoxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-tridecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, phenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-butoxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[4-(dodecyloxy / tridecyloxy-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy- 4-methoxyphenyl)-4,6-diphenyl-1,3,5-triazine, 2,4,6-tris[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)-4-(4-methoxyphenyl)-6-phenyl-1,3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl}-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(4-[2-ethylhexyloxy]-2-hydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl} -2-hydroxypropyloxy]phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 5-butoxy-2-[4-(4-butoxy-2-hydroxyphenyl)-6-(2,4-dibutoxyphenyl)-1,3,5-triazine-2-yl]phenol, 2-[4-[2-hydroxy-3-tridecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2-[4-[2-hydroxy-3-dodecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(4-(4,6-bis((1,1'-biphenyl)-4-yl)-1,3,5-triazine-2-yl)-3-hydroxyphenoxy)propionic acid isooctyl ester, bis-ethylhexyloxyphenol methoxyphenyl triazine, or a mixture of two or more thereof.

[0289] 8. The composition of embodiment 3, wherein the cyanoacrylate UV absorber is selected from ethyl α-cyano-β,β-diphenylacrylate, isooctyl α-cyano-β,β-diphenylacrylate, neopentyl tetrakis(α-cyano-β,β-diphenylacrylate), pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate), ethyl 2-cyano-3,3-diphenylacrylate, (2-ethylhexyl)-2-cyano-3,3-diphenylacrylate, or a mixture of two or more thereof.

[0290] 9. The composition of embodiment 3 or embodiment 8, wherein the cyanoacrylate UV absorber is pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate).

[0291] 10. The composition of embodiment 3, wherein the oxanilide is selected from 4,4′-dioctyloxyoxanilide, 2,2′-diethoxyoxanilide, 2,2′-dioctyloxy-5,5′-di-tert-butyloxanilide, 2,2′-bis-dodecyloxy-5,5′-di-tert-butyloxanilide, 2-ethoxy-2′-ethyloxanilide, N,N′-bis(3-dimethylaminopropyl)oxalamide, 2-ethoxy-5-tert-butyl-2′-ethyloxanilide and a mixture thereof with 2-ethoxy-2′-ethyl-5,4′-di-tert-butyloxanilide, a mixture of o- and p-methoxy-disubstituted oxanilides, a mixture of o- and p-ethoxy-disubstituted oxanilides, or a mixture of two or more thereof.

[0292] 11. The composition of one or more of embodiments 1 to 10, further comprising at least one antioxidant.

[0293] 12. The composition of embodiment 11, wherein the antioxidant is selected from phenolic antioxidants, organophosphorus stabilizers, or mixtures thereof.

[0294] 13. The composition according to embodiment 11 or embodiment 12, wherein the phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylene-diamide, 1,3,5-tris[3,5-di-tert-butyl-4 -hydroxybenzyl] isocyanurate, 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-butyl(3,5-di-tert-butyl-4-hydroxybenzyl)malonate), octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and a blend of tris[2,4-di-tert-butylphenyl]phosphite, or a mixture of two or more thereof.

[0295] 14. A composition according to one or more of embodiments 11 to 13, wherein the phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, or a blend of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris[2,4-di-tert-butylphenyl]phosphite.

[0296] 15. The composition of embodiment 12, wherein the organophosphorus stabilizer is selected from an organophosphite, an organophosphite, an organophosphine, or a mixture of two or more thereof.

[0297] 16. The composition of embodiment 15, wherein the organic phosphite is tris(2,4-di-tert-butylphenyl)phosphite.

[0298] 17. The composition of embodiment 15, wherein the organophosphine is triphenylphosphine.

[0299] 18. The composition of one or more of embodiments 1 to 17, wherein the weight ratio of the compound of formula (A) to the at least one UV absorber other than the compound of formula (A) is in the range of 1:50 to 50:1.

[0300] 19. The composition of one or more of embodiments 1 to 18, wherein the composition further comprises at least one sterically hindered amine light stabilizer.

[0301] 20. The composition of embodiment 19, wherein the sterically hindered amine light stabilizer is selected from bis(1-decyloxy-2,2,6,6-tetramethyl-4-piperidinyl) carbonate, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(2,2,6,6-tetramethyl-4-piperidinyl) succinate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl) n-butyl-3,5-di-tert-butyl-4-hydroxybenzyl malonate, poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-crosslinked 1,4-butanediol), a linear or cyclic condensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, tris(2,2,6,6-tetramethyl-4-piperidinyl)nitrilotriacetate, tetrakis(2,2,6,6-tetramethyl-4-piperidinyl)-1,2,3,4-butanetetracarboxylate, 1,1′-(1,2-ethanediyl)-bis(3,3,5,5-tetramethylpiperazinone), 4-benzoyl-2,2,6,6-tetramethylpiperidine, 4-stearyloxy-2,2,6,6-tetramethylpiperidine, bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2 -hydroxy-3,5-di-tert-butylbenzyl)malonate, 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)sebacate, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)succinate, linear or cyclic condensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine, condensation of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane 2-Chloro-4,6-di-(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane condensate, 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)pyrrolidine-2,5-dione, 3-dodecyl-1-(1,2,2,6,6-pentamethyl-4-piperidinyl)pyrrolidine-2,5-dione, a mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine, N,N′-bis(2,2,6,1,6-diamine and 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensation product of hexamethylenediamine and 2,4,6-trichloro-1,3,5-triazine and N,N-dibutylamine and 4-butylamino-2,2,6,6-tetramethylpiperidine; N-(2,2,6,6-tetramethyl-4-piperidinyl)-n-dodecylsuccinimide, N-(1,2,2,6,6-pentamethyl-4-piperidinyl)-n-dodecylsuccinimide, 2-undecyl-7,7, 9,9-Tetramethyl-1-oxa-3,8-diaza-4-oxo-spiro[4,5]decane, reaction products of 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxo-spiro[4,5]decane and epichlorohydrin, 1,1-bis(1,2,2,6,6-pentamethyl-4-piperidinyloxycarbonyl)-2-(4-methoxyphenyl)ethylene, N,N′-bis-formyl-N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine, diester of 4-methoxymethylenemalonic acid with 1,2,2,6,6-pentamethyl-4-hydroxypiperidine, poly[methylpropyl-3-oxy-4-(2,2,6,6-tetramethyl-4-piperidinyl)] Siloxane, reaction products of maleic anhydride-α-olefin copolymers with 2,2,6,6-tetramethyl-4-aminopiperidine or 1,2,2,6,6-pentamethyl-4-aminopiperidine, 2,4-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N-butylamino]-6-(2-hydroxyethyl)amino-1,3,5-triazine, 5-(2-ethylhexanoyl)oxymethyl-3,3,5-trimethyl-2-morpholinone, reaction products of 2,4-bis[(1-cyclohexyloxy-2,2,6,6-piperidin-4-yl)butylamino]-6-chloro-s-triazine with N,N′-bis(3-aminopropyl)ethylenediamine, 1,3,5-tri(N-cyclohexyl-N-(2,2,6,6 -tetramethylpiperazin-3-one-4-yl)amino)-s-triazine, 1,3,5-tri(N-cyclohexyl-N-(1,2,2,6,6-pentamethylpiperazin-3-one-4-yl)amino)-s-triazine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-N,N′-diformylhexamethylenediamine, a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate, 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,A mixture of 1,2-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid), bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate, a mixture of 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, N, 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and morpholine-2,4,6-trichloro-1,3,5-triazine, polymer methylation products, N 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine polymer with 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine, N 1 , N 6 -bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and morpholine-2,4,6-trichloro-1,3,5-triazine polymer methylation reaction product and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol mixture, N 1 , N 6 - a polymer of bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol, or a mixture of two or more thereof.

[0302] 21. The composition of embodiment 1, 19 or 20, wherein the sterically hindered amine light stabilizer is selected from a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, a mixture of 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid), bis(1,2,2,6 ,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate, bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)sebacate, 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, or a mixture of two or more thereof.

[0303] 22. The composition of one or more of embodiments 1 to 21, wherein the composition further comprises at least one compound of formula (B) having formula (I), formula (II), formula (III) or formula (IV)

[0304] - Compound (B) having the general formula (I)

[0305]

[0306] in

[0307] A1 is independently selected from linear or branched substituted or unsubstituted C2-C 18 Alkylene, substituted or unsubstituted C5-C7 cycloalkylene and C1-C4 alkylene di(C5-C7 cycloalkylene),

[0308] A2 is independently selected from H, linear or branched substituted or unsubstituted C1-C 12 Alkyl, C1-C 12 Alkoxy, substituted or unsubstituted C5-C 12 Cycloalkyl and C5-C 12 Cycloalkoxy,

[0309] A3 and A4 are independently selected from H, linear or branched substituted or unsubstituted C1-C 12Alkyl, substituted or unsubstituted C5-C 12 A cycloalkyl group and a group having the formula (a-1),

[0310]

[0311] or

[0312] A3 and A4 together with the nitrogen atom to which they are bonded form a 5- to 10-membered heterocyclic ring; and

[0313] a is an integer ranging from 1 to 20, and the repeating units are the same or different;

[0314] - Compound (B) having the general formula (II)

[0315]

[0316] in

[0317] x1 and x2 are independently selected from C1 to C 30 Alkoxy,

[0318] - Compound (B) having the general formula (III)

[0319]

[0320] in

[0321] Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl,

[0322] Y2 is C1 to C 30 Alkyl; and

[0323] - Compound (B) having the general formula (IV)

[0324]

[0325] in

[0326] Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl,

[0327] Y3 is independently selected from linear or branched substituted or unsubstituted C3 to C 20 Alkyl and C3 to C 20 Alkylene,

[0328] X is a C2 to C8 alkyl group,

[0329] n is an integer ranging from 1 to 8.

[0330] 23. A composition according to embodiment 22, wherein the compound of formula (B) is selected from formula (B-1), (B-2), (B-3), (B-4), (B-5), (B-6), (B-7), (B-8), or a mixture of two or more thereof.

[0331]

[0332] wherein a is an integer in the range of 1 to 10; and

[0333]

[0334]

[0335] Where n is 2

[0336] (B-8)

[0337] 24. The composition of one or more of embodiments 1 to 23, wherein the composition further comprises at least one additive selected from scratch inhibitors, slip agents, anti-caking agents, thermal fillers, pigments, anti-fogging agents, or anti-fogging agents.

[0338] 25. An additive mixture comprising:

[0339] I. at least one compound of formula (A) as defined in Embodiment 1; and

[0340] II. At least one UV absorber as defined in any one of embodiments 3 to 10.

[0341] 26. The additive mixture of embodiment 25, wherein the additive mixture further comprises at least one antioxidant as defined in any one of embodiments 11 to 17; at least one sterically hindered amine light stabilizer as defined in any one of embodiments 19 or 21; at least one compound of formula (B) as defined in any one of embodiments 22 or 23; and at least one additive selected from scratch inhibitors, slip agents, anti-blocking agents, thermal fillers, pigments, anti-fog agents, or anti-fog agents.

[0342] 27. An article comprising the composition according to one or more of embodiments 1 to 24.

[0343] 28. Use of the additive mixture of embodiment 25 or 26 to enhance the optical properties of a molded or extruded article, including a multilayer article.

[0344] The following examples illustrate the present invention in more detail. Unless otherwise indicated, all percentages and parts are by weight.

[0345] Examples

[0346] The compounds of the UV absorber packages of Tables 1 to 3 are listed below:

[0347] Compounds having formula (A):

[0348]

[0349]

[0350] Antioxidants:

[0351] Compound (C-1): tris(2,4-di-tert-butylphenyl)phosphite

[0352] Compound (C-2): a blend of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris[2,4-di-tert-butylphenyl]phosphite

[0353] UV absorber:

[0354] Compound (D-1): 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]

[0355] Compound (D-2): Pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate)

[0356] Compound (D-3): 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole

[0357] Compound (D-4): 2-ethoxy-2′-ethyloxalanilide

[0358] Compound (D-5): 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole

[0359] Hindered Amine Light Stabilizer:

[0360] Compound (E-1): A mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate

[0361] Compound (E-2): a mixture of 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alt-1,4-butanedioic acid)

[0362] Compound (E-3): Bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate

[0363] Compound (E-4): a mixture of 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazine-2-yl]-1,5,8,12-tetraazadodecane

[0364] Example 1: Preparation of the composition of Table 1:

[0365] As described in Table 1 below, compositions containing ground polycarbonate Makrolon 3108 FBL dried under vacuum (120° C., 4 hours) were prepared process stabilized with 0.08% (C-1) and light stabilized with different UV absorber packages added at 2.4 wt.%.

[0366] Mixing was performed by conventional incorporation by mixing vacuum dried (120°C, 4 hours) ground Makrolon 3108 FBL (120°C, 4 hours) with (C-1) and UV absorber using a high speed Mixaco apparatus.

[0367] The material mixture is then homogenized preferably by two single extrusions on a Collin ZK 25E*42D operating under nitrogen at 280° C. The extrudate is then dried under vacuum at 120° C. for 4 hours, and a 50 micron polycarbonate sheet is then produced.

[0368] Production of polycarbonate sheets:

[0369] Coextruded solid polycarbonate sheets are produced, for example, by Collin E30M.

[0370] aging:

[0371] The samples were exposed to artificial weathering using an Atlas C15000 according to ASTM G-155 Cyclus 1 (Xenon lamp with Boro S / Boro S filter, 0.35 W / m2 at 340 nm, BPT 63±3°C, 50+ / -5% relative humidity, dry bulb temperature 42+ / -4°C).

[0372] Optical measurements:

[0373] Color changes (YI, ΔE, haze, clarity) were measured during exposure to ASTM G-155 Cyclus 1 (Xenon lamp with Boro S / Boro S filter, 0.35 W / m2 at 340 nm, BPT 63±3°C, 50+ / -5% relative humidity, dry bulb temperature 42+ / -4°C) using an Atlas CI5000.

[0374] Table 1: The additive mixtures used in Example 1 and the results of these compositions are given in Table 1

[0375]

[0376]

[0377] Using Atlas CI5000, polycarbonate sheets / samples were exposed to ASTM G-155 Cyclus 1 (Xenon lamp with BoroS / BOrO S filter, at 340nm at 0.35W / m2, BPT 63±3°C, 50+ / -5% relative humidity, dry bulb temperature 42+ / -4°C) for 6511 hours.

[0378] The lower the ΔE, YI and %Haze and the higher the %Transparency value, the better the PC sample tested.

[0379] From Table 1, it is apparent that the results of ΔE, YI, haze, and clarity of Formulations 1 to 7 and Formulations 8 to 13 are better than those of Control Samples 1 and 2, respectively.

[0380] Example 2: Preparation of the composition of Table 2:

[0381] As described in Table 2 below, compositions containing ground PC / ABS Alloy Bayblend T 65 XF dried under vacuum (110°C, 3 hours) were prepared with 0.2% (C-2) for process stabilization and with different UV absorber packages added at 0.6 wt. %.

[0382] Compounding was performed by conventional incorporation by mixing vacuum dried (110° C., 3 hours) ground PC / ABS Alloy Bayblend T 65 XF and (C-2) and UV absorber using a high speed Mixaco apparatus.

[0383] The substance mixture is then preferably homogenized by twin-screw extrusion on a Collin 25*42D operated under nitrogen at 240° C. The extrudate is then dried under vacuum at 110° C. for 3 hours before injection-molded plaques (60 mm×60 mm×2 mm) are produced at 240° C. on an Arburg injection molding unit.

[0384] aging:

[0385] Injection molded plaques (60 mm x 60 mm x 2 mm) were exposed to artificial weathering according to international norms DIN EN ISO 4892-2 Cyclus 1 (Xenon lamp with Boro S / Boro S filter, 1.20 W / m2 at 420 nm, BPT 65±2°C, 50+ / -10% relative humidity, dry bulb temperature 38+ / -3°C) using Atlas CI65 and DIN ISO 105 B06 (Xenon lamp with Boro S / soda lime filter, 60 W / m2 at 300-400 nm (equivalent to 0.46 W / (m2·nm) at 340 nm), BPT 100±3°C, 30+ / -5% relative humidity, dry bulb temperature 65+ / -5°C) using Atlas CI5000.

[0386] Optical measurements:

[0387] The delta of the color change (ΔYI, ΔDE) between Control 3 and Formulation XX was measured during exposure to DIN EN ISO 4892-2 Cyclus 1 (Xenon lamp with Boro S / Boro S filter, 1.20 W / m2 at 420 nm, BPT 65±2°C, 50+ / -10% relative humidity, dry bulb temperature 38+ / -3°C) using Atlas CI65 and DIN ISO 105 B06 (Xenon lamp with Boro S / Soda-lime filter, 60 W / m2 at 300-400 nm (equivalent to 0.46 W / (m2·nm) at 340 nm), BPT 100±3°C, 30+ / -5% relative humidity, dry bulb temperature 65+ / -5°C) using Atlas CI500.

[0388] Table 2: Additive mixtures used in Example 2 and the results of these compositions are given in Table 2

[0389]

[0390]

[0391] All samples were exposed to DIN EN ISO 4892-2 Cyclus 1 (Xenon lamp with Boro S / Boro S filter at 420 nm at 1.20 W / m2, BPT 65±2°C, 50+ / -10% relative humidity, dry bulb temperature 38+ / -3°C) using Atlas CI65.

[0392] The higher the ΔDE (after 1250 hours) and ΔYI (after 1250 hours) between controls 3 to 6 and the corresponding formulations 14 to 17, the better the UV stable package.

[0393] From Table 2, it is apparent that the results of ΔE and YI of Formulations 14 to 17 are better than those of Control Samples 3 to 6, respectively.

[0394] Example 3: Preparation of the composition of Table 3 :

[0395] The compositions of Table 3 were prepared using the same method as given in Example 2 of the present invention.

[0396] Table 3: Additive mixtures used in Example 3 and the results of these compositions are given in Table 3

[0397]

[0398] Using an Atlas CI5000, all samples were exposed to DIN ISO 105 B06 (Xenon lamp with Boro S / soda lime filter, 60 W / m2 at 300-400 nm (equivalent to 0.46 W / (m2·nm) at 340 nm), BPT 100±3°C, 30+ / -5% relative humidity, dry bulb temperature 65+ / -5°C).

[0399] The higher the ΔDE (after 1000 hours) and ΔYI (after 1250 hours) between the control 7 and the corresponding formulation 18, the better the UV stable package

[0400] From Table 3, it is clear that the results of ΔE and YI of Formulation 18 are better than those of Control Sample 7.

Claims

1. A composition comprising: i. polycarbonate in an amount ranging from 90 to 99.9 wt % based on the total weight of the composition: ii. at least one compound of formula (A) selected from formula (A-1), (A-2), (A-3), (A-4), (A-5), (A-6) or (A-7) in an amount ranging from 0.02 to 0.8 wt % based on the total weight of the composition, iii. at least one UV absorber other than the compound of formula (A) in an amount ranging from 0.4 to 2.5 wt %, based on the total weight of the composition.

2. The composition according to claim 1, wherein The polycarbonate is selected from a homopolycarbonate, a copolycarbonate, a thermoplastic polyester carbonate, a polycarbonate / acrylonitrile-butadiene-styrene terpolymer blend, a thermoplastic alloy of a polycarbonate / acrylic-styrene-acrylonitrile terpolymer, a thermoplastic alloy of a polycarbonate / polybutylene terephthalate blend, a thermoplastic alloy of a polycarbonate / polyethylene terephthalate, or a thermoplastic alloy of a polycarbonate and styrene-acrylonitrile.

3. The composition according to claim 1, wherein The UV absorber is selected from 2-(2'-hydroxyphenyl)benzotriazole, 2-hydroxybenzophenone, 2-(2-hydroxyphenyl)-1,3,5-triazine, cyanoacrylate, oxanilide, benzoxazinones, esters of substituted and unsubstituted benzoic acid, or a mixture of two or more thereof.

4. The composition according to claim 3, wherein 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(5′-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-5′-(1,1,3,3-tetramethylbutyl)phenyl)benzotriazole, 2-(3′,5′-di-tert-butyl-2′-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-methylphenyl)benzotriazole -5-chloro-benzotriazole, 2-(3′-sec-butyl-5′-tert-butyl-2′-hydroxyphenyl)benzotriazole, 2-(2′-hydroxy-4′-octyloxyphenyl)benzotriazole, 2-(3′,5′-di-tert-amyl-2′-hydroxyphenyl)benzotriazole, 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-octyloxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-5′- [2-(2-ethylhexyloxy)-carbonylethyl]-2′-hydroxyphenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-methoxycarbonylethyl)phenyl)-5-chloro-benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-methoxycarbonylethyl)phenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-(2-octyloxycarbonylethyl)phenyl)benzotriazole, 2-(3′-tert-butyl-5′-[2-(2-ethylhexyloxy)carbonylethyl]-2′-hydroxyphenyl)-5-chloro-benzotriazole 2-(3′-tert-butyl-2′-hydroxy-5′-(2-isooctyloxycarbonylethyl)phenylbenzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; ester exchange product of 2-[3′-tert-butyl-5′-(2-methoxycarbonylethyl)-2′-hydroxyphenyl]-2H-benzotriazole and polyethylene glycol 300; Wherein R = 3′-tert-butyl-4′-hydroxy-5′-2H-benzotriazol-2-ylphenyl, 2-[2′-hydroxy-3′-(α,α-dimethylbenzyl)-5′-(1,1,3,3-tetramethylbutyl)-phenyl]benzotriazole, 2-[2′-hydroxy-3′-(1,1,3,3-tetramethylbutyl)-5′-(α,α-dimethylbenzyl)-phenyl]benzotriazole, or a mixture of two or more thereof.

5. The composition according to claim 3 or claim 4, wherein 2-(2′-hydroxyphenyl)benzotriazole is selected from 2-(2′-hydroxy-5′-methylphenyl)-benzotriazole, 2,2′-methylene-bis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol], 2-(3′,5′-bis-(α,α-dimethylbenzyl)-2′-hydroxyphenyl)benzotriazole, 2-(3′-tert-butyl-2′-hydroxy-5′-methylphenyl)-5-chloro-benzotriazole, or a mixture thereof.

6. The composition according to claim 3, wherein The 2-hydroxybenzophenone is selected from 2-hydroxy-4-hydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 2-hydroxy-4-decyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2-hydroxy-4,2′,4′-trihydroxybenzophenone, 2-hydroxy-2′-hydroxy-4,4′-dimethoxybenzophenone derivatives, 1,4-bis(4-benzoyl-3-hydroxyphenoxy)-butane, or a mixture of two or more thereof.

7. The composition according to claim 3, wherein 2-(2-hydroxyphenyl)-1,3,5-triazine is selected from 2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-propoxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-tridecyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-butoxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxypropoxy)phenyl]-4,6-bis(2,4-dimethyl)-1,3,5-triazine, 2-[4-(dodecyloxy / tridecyloxy-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxypropoxy)phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine triazine, 2-(2-hydroxy-4-methoxyphenyl)-4,6-diphenyl-1,3,5-triazine, 2,4,6-tris[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)-4-(4-methoxyphenyl)-6-phenyl-1,3,5-triazine, 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl}-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 2,4-bis(4-[2-ethylhexyloxy]-2-hydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2- [2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 5-butoxy-2-[4-(4-butoxy-2-hydroxyphenyl)-6-(2,4-dibutoxyphenyl)-1,3,5-triazine-2-yl]phenol, 2-[4-[2-hydroxy-3-tridecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2-[4-[2-hydroxy-3-dodecyloxypropyl]oxy]-2-hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine3,5-triazine, 2-(4-(4,6-bis((1,1'-biphenyl)-4-yl)-1,3,5-triazine-2-yl)-3-hydroxyphenoxy)propionic acid isooctyl ester, bis-ethylhexyloxyphenol methoxyphenyl triazine, or a mixture of two or more thereof.

8. The composition according to claim 3, wherein The cyanoacrylate UV absorber is selected from ethyl α-cyano-β,β-diphenylacrylate, isooctyl α-cyano-β,β-diphenylacrylate, neopentyl tetrakis(α-cyano-β,β-diphenylacrylate), pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate), ethyl 2-cyano-3,3-diphenylacrylate, (2-ethylhexyl)-2-cyano-3,3-diphenylacrylate, or a mixture of two or more thereof.

9. The composition according to claim 3 or claim 8, wherein The cyanoacrylate UV absorber was pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate).

10. The composition according to claim 3, wherein The oxalanilide is selected from 4,4′-dioctyloxyoxalanilide, 2,2′-diethoxyoxalanilide, 2,2′-dioctyloxy-5,5′-di-tert-butyloxalanilide, 2,2′-bis-dodecyloxy-5,5′-di-tert-butyloxalanilide, 2-ethoxy-2′-ethyloxalanilide, N,N′-bis(3-dimethylaminopropyl)oxalamide, 2-ethoxy-5-tert-butyl-2′-ethyloxalanilide and a mixture thereof with 2-ethoxy-2′-ethyl-5,4′-di-tert-butyloxalanilide, a mixture of o- and p-methoxy-disubstituted oxalanilides, a mixture of o- and p-ethoxy-disubstituted oxalanilides, or a mixture of two or more thereof.

11. A composition according to one or more of claims 1 to 10, wherein The composition further comprises at least one antioxidant.

12. The composition according to claim 11, wherein The antioxidant is selected from phenolic antioxidants, organic phosphorus stabilizers, or mixtures thereof.

13. The composition according to claim 11 or claim 12, wherein The phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene, N,N′-bis(3,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylene-diamide, 1,3,5-tris[3,5-di-tert-butyl-4-hydroxybenzyl]isocyanurate, 2 , 4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-butyl(3,5-di-tert-butyl-4-hydroxybenzyl)malonate), octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate and a blend of tris[2,4-di-tert-butylphenyl]phosphite, or a mixture of two or more thereof.

14. A composition according to one or more of claims 11 to 13, wherein The phenolic antioxidant is selected from octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, or a blend of octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris[2,4-di-tert-butylphenyl]phosphite.

15. The composition according to claim 12, wherein The organophosphorus stabilizer is selected from organophosphites, organophosphonites, organophosphines, or a mixture of two or more thereof.

16. The composition according to claim 15, wherein The organic phosphite is tris(2,4-di-tert-butylphenyl)phosphite.

17. The composition according to claim 15, wherein The organic phosphine is triphenylphosphine.

18. A composition according to one or more of claims 1 to 17, wherein The weight ratio of the total amount of the compound of formula (A) present in the composition to the total amount of UV absorbers other than the compound of formula (A) present in the composition is in the range of 1:50 to 50:

1.

19. A composition according to one or more of claims 1 to 18, wherein The composition further comprises at least one sterically hindered amine light stabilizer.

20. The composition according to claim 19, wherein The sterically hindered amine light stabilizer is selected from bis(1-undecyloxy-2,2,6,6-tetramethyl-4-piperidyl) carbonate, bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(2,2,6,6-tetramethyl-4-piperidyl) succinate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis(1,2,2,6,6-pentamethyl-4-piperidyl) n-butyl-3,5-di-tert-butyl linear or cyclic condensation product of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, tris(2,2,6,6-tetramethyl-4-piperidinyl)nitrilotriacetate, tetrakis(2,2,6,6-tetramethyl-4-piperidinyl)-1,2,3,4-butanetetracarboxylate, 1,1′-(1 , 2-ethanediyl)-bis(3,3,5,5-tetramethylpiperazinone), 4-benzoyl-2,2,6,6-tetramethylpiperidine, 4-stearyloxy-2,2,6,6-tetramethylpiperidine, bis(1,2,2,6,6-pentamethylpiperidinyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate, 3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)decane bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)succinate, linear or cyclic condensate of N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine, condensate of 2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane, 2-chloro-4,6-di-(4-n-butylamino-1,2,2,6,6-pentamethylpiperidinyl)-1,3,5-triazine and 1,2-bis(3-aminopropylamino)ethane condensate, 8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidinyl)pyrrolidine-2,5-dione, 3-dodecyl-1-(1,2,2,6,6-pentamethyl-4-piperidinyl)pyrrolidine-2,5-dione, a mixture of 4-hexadecyloxy- and 4-stearyloxy-2,2,6,6-tetramethylpiperidine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine and 4-cyclohexyl condensation product of hexylamino-2,6-dichloro-1,3,5-triazine, condensation product of 1,2-bis(3-aminopropylamino)ethane with 2,4,6-trichloro-1,3,5-triazine and 4-butylamino-2,2,6,6-tetramethylpiperidine; condensation product of 1,6-hexanediamine with 2,4,6-trichloro-1,3,5-triazine and N,N-dibutylamine with 4-butylamino-2,2,6,6-tetramethylpiperidine; N-(2,2,6,6-tetramethyl-4-piperidinyl)-n-dodecylsuccinimide, N-(1,2,2,6,6-pentamethyl-4-piperidinyl)-n-dodecylsuccinimide, 2-undecyl-7,7,9,9-tetramethyl-1-oxa-3, 8-diaza-4-oxo-spiro[4,5]decane, reaction products of 7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4,5]decane and epichlorohydrin, 1,1-bis(1,2,2,6,6-pentamethyl-4-piperidinyloxycarbonyl)-2-(4-methoxyphenyl)ethylene, N,N′-bis-formyl-N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)hexamethylenediamine, diester of 4-methoxymethylenemalonic acid and 1,2,2,6,6-pentamethyl-4-hydroxypiperidine, poly[methylpropyl-3-oxy-4-(2,2,6,6-tetramethyl-4-piperidinyl)]siloxane, maleic acid anhydride-alpha-olefin copolymers with 2,2,6,6-tetramethyl-4-aminopiperidine or 1,2,2,6,6-pentamethyl-4-aminopiperidine, 2,4-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N-butylamino]-6-(2-hydroxyethyl)amino-1,3,5-triazine, 5-(2-ethylhexanoyl)oxymethyl-3,3,5-trimethyl-2-morpholinone, 2,4-bis[(1-cyclohexyloxy-2,2,6,6-piperidin-4-yl)butylamino]-6-chloro-s-triazine with N,N′-bis(3-aminopropyl)ethylenediamine, 1,3,5-tri(N-cyclohexyl-N-(2,2,6,6-tetramethylpiperazin-3-one-4-yl)amino)-s-triazine, 1,3,5-tri(N-cyclohexyl-N-(1,2,2,6,6-pentamethylpiperazin-3-one-4-yl)amino)-s-triazine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-N,N′-diformylhexamethylenediamine, a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate, 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazine- A mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate, 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, N, 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and morpholine-2,4,6-trichloro-1,3,5-triazine, polymer methylation products, N 1 , N 6 -Bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine polymer with 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine, N 1 , N 6 -bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine, polymer methylation reaction product with morpholine-2,4,6-trichloro-1,3,5-triazine and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol, N 1 , N 6 - a polymer of bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,6-hexanediamine and 2,4-dichloro-6-(4-morpholinyl)-1,3,5-triazine and 2-(4,6-bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-(octyloxy)-phenol, or a mixture of two or more thereof.

21. The composition according to claim 1, 19 or 20, wherein The sterically hindered amine light stabilizer is selected from a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, a mixture of 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazine-2-yl]-1,5,8,12-tetraazadodecane and poly(4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol-alternate-1,4-butanedioic acid), bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate )-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)malonate, bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, bis(1-octyloxy-2,2,6,6-tetramethylpiperidinyl)sebacate, 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine and 1,5,8,12-tetrakis[4,6-bis(N-butyl-N-1,2,2,6,6-pentamethyl-4-piperidinylamino)-1,3,5-triazin-2-yl]-1,5,8,12-tetraazadodecane, or a mixture of two or more thereof.

22. A composition according to one or more of claims 1 to 21, wherein The composition further comprises at least one compound of formula (B) having formula (I), formula (II), formula (III) or formula (IV) - Compound (B) having the general formula (I) in A1 is independently selected from linear or branched substituted or unsubstituted C2-C 18 Alkylene, substituted or unsubstituted C5-C7 cycloalkylene and C1-C4 alkylene di(C5-C7 cycloalkylene), A2 is independently selected from H, linear or branched substituted or unsubstituted C1-C 12 Alkyl, C1-C 12 Alkoxy, substituted or unsubstituted C5-C 12 Cycloalkyl and C5-C 12 Cycloalkoxy, A3 and A4 are independently selected from H, linear or branched substituted or unsubstituted C1-C 12 Alkyl, substituted or unsubstituted C5-C 12 A cycloalkyl group and a group having the formula (a-1), or A3 and A4 together with the nitrogen atom to which they are bound form a 5- to 10-membered heterocyclic ring; and a is an integer ranging from 1 to 20, and the repeating units are the same or different; - Compound (B) having the general formula (II) in x1 and x2 are independently selected from C1 to C 30 Alkoxy, - Compound (B) having the general formula (III) in Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl, Y2 is C1 to C 30 Alkyl; and - Compound (B) having the general formula (IV) in Y1 is a linear or branched substituted or unsubstituted C3 to C 20 alkyl, Y3 is independently selected from linear or branched substituted or unsubstituted C3 to C 20 Alkyl and C3 to C 20 Alkylene, X is a C2 to C8 alkyl group, n is an integer ranging from 1 to 8.

23. The composition according to claim 22, wherein The compound of formula (B) is selected from formula (B-1), (B-2), (B-3), (B-4), (B-5), (B-6), (B-7), (B-8), or a mixture of two or more thereof: Wherein a is an integer ranging from 1 to 10; Where n is 2 (B-8).

24. A composition according to one or more of claims 1 to 23, wherein The composition further comprises at least one additive selected from the group consisting of an anti-scratch agent, a slip agent, an anti-blocking agent, a thermal filler, a pigment, an anti-fog agent or an anti-fog agent.

25. An additive mixture comprising: I. at least one compound of formula (A) as defined in claim 1; and II. At least one UV absorber as defined in any one of claims 3 to 10.

26. The additive mixture according to claim 25, wherein The additive mixture further comprises at least one antioxidant as defined in any one of claims 11 to 17; at least one sterically hindered amine light stabilizer as defined in any one of claims 19 to 21; at least one compound of formula (B) as defined in any one of claims 22 or 23; and at least one additive selected from scratch inhibitors, slip agents, anti-blocking agents, thermal fillers, pigments, anti-fogging agents or anti-fogging agents.

27. An article comprising a composition according to one or more of claims 1 to 24.

28. Use of an additive mixture according to claim 25 or 26 for enhancing the optical properties of moulded or extruded articles, including multi-layer articles.

Images