UV resistant naphthalate polyester articles
First Claim
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1. An article comprising a support comprising a naphthalate polyester overcoated with all resistant coating comprising the polymerized reaction product of a homogenous mixture comprising:
- a) at least one vinyl-functional crosslinkable film former;
b) more than 10 weight percent benzotriazole UV absorber; and
c) at least one copolymerizable monomer that solubilizes a sufficient amount of the benzotriazole so that the mixture is homogenous.
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Abstract
Naphthalate polyester articles can be coated with polymerizable compositions containing a vinyl-functional crosslinkable film former, a large amount of benzotriazole and a copolymerizable monomer that solubilizes the benzotriazole. The cured compositions help protect the naphthalate polyester from UV exposure and other weathering effects.
167 Citations
55 Claims
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1. An article comprising a support comprising a naphthalate polyester overcoated with all resistant coating comprising the polymerized reaction product of a homogenous mixture comprising:
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a) at least one vinyl-functional crosslinkable film former; b) more than 10 weight percent benzotriazole UV absorber; and c) at least one copolymerizable monomer that solubilizes a sufficient amount of the benzotriazole so that the mixture is homogenous. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An article comprising a support comprising a naphthalate polyester overcoated with a UV resistant coating comprising the polymerized reaction product of a homogenous mixture comprising:
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a) at least one vinyl-fbnctional crosslinkable film former; b) more than 5 weight percent benzotriazole UV absorber or absorbers comprising 2-(2-hydroxy-3-alpha-cumyl-5-t-octylphenyl)-5-trifluoromethylbenzotriazole; and c) at least one copolymerizable monomer that solubilizes the benzotriazole. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A process for applying a UV resistant coating to a naphthalate polyester article comprising:
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a) providing a support comprising a napthalate polyester; b) coating at least a portion of the support with a homogenous mixture comprising (i) at least one vinyl-functional crosslinkable film former;
(ii) more than 10 weight percent benzotriazole UV absorber; and
(iii) at least one copolymerizable monomer that solubilizes the benzotriazole; andc) polymerizing the coating. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A process for applying a UV resistant coating to a naphthalate polyester article comprising:
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a) providing a support comprising a naphthalate polyester; b) coating at least a portion of the support wit a homogenous mixture comprising (i) at least one vinyl-functional crosslinkable film former;
(ii) more than 5 weight percent benzotriazole UV absorber or absorbers comprising 2-(2-hydroxy-3-alpha-cumyl-5-octylphenyl)-5-trifluromethylbenzotriazole;
(iii) at least one copolymerizable monomer that solubilizes the benzotriazole; andc) polymerizing the coating. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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Specification