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US 5,198,498 AGranted
Light-stabilized binders for coating compositions
AssigneeCiba-Geigy Corporation
InventorsAndreas Valet, Roger Meuwly, Mario Slongo
Life of this patent
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Abstract
The stabilized binder is a mixture of two copolymers and at least one curing agent. The one copolymer contains fluorine or silicon and a UV absorber in copolymierized form. The other copolymer is an acrylic resin. Suitalbe curing agents are melamine resins or polyisocyanates.
Claims8
A curable composition comprising
- (a) a fluorine-containing copolymer,
- (b) a (meth)acrylic copolymer, and
- (c) at least one curing agent, each of which two said copolymers contains functional groups which are able to react with the curing agent,
- wherein only component (a) contains a UV absorber which is a derivative of 2-(2-hydroxyphenyl)benzotriazole or of o-hydroxyphenyl-s-triazine in copolymerised form.
1 more element
Dependencies are inferred from the claim text.