Granted Patent B2

US 6,884,841 · App. 10/771,053 · Granted Apr 26, 2005

Abstract

Claims (8)

1. A laminating resin composition comprising an unsaturated polyester resin which is formed from the reaction product of an polybasic acid or anhydride and an alcohol, a vinyl ester resin formed from the reaction product of an unsaturated monocarboxylic acid and an epoxy resin, having more than one vicinal epoxy group per molecule from about 1 to less than 15 percent by weight of a polyfunctional acrylate compound, and less than about 15 percent by weight of a vinyl monomer.

2. The laminating resin composition according to claim 1 wherein said unsaturated polyester resin has a weight average molecular weight ranging from about 300 to 2000.

3. The laminating resin composition according to claim 1 wherein said vinyl ester resin has a weight average molecular weight ranging from about 450 to 1500.

4. The laminating resin composition according to claim 1 wherein said polyfunctional acrylate is selected from the group consisting of ethylene glycol dimethacrylate, butanediol dimethacrylate, trimethylol propane trimethacrylate, and mixtures thereof.

5. The laminating resin composition according to claim 1 wherein said vinyl monomer is selected from the group consisting of styrene and vinyl toluene.

6. The laminating resin composition according to claim 1 further comprising a dicyclopentadiene resin.

7. The laminating resin composition according to claim 1 wherein the vinyl monomer comprises hydroxypropyl methacrylate.

8. The laminating resin composition according to claim 1 wherein said unsaturated polyester resin comprises a component selected from the group consisting of acrylic acid, methacrylic acid, cinnamyl alcohol, crotonic acid, cinnamic acid, sorbic acid, maleic acid, fumaric acid, itaconic acid, benzoic acid, benzyl alcohol, cyclohexanol, 2-ethyl hexanol, trimethylol propane diallyl ether, and mixtures thereof.

Assignments (12)