Patent ID: 9676976
Date: 2017-06-13
CPC Classifications: B32B,C08G,C09D,C09J

Claim:
1. An oxygen-barrier adhesive comprising: an amorphous polyester polyol, which is obtained by polycondensation of a polyvalent carboxylic acid component and a polyhydric alcohol component, a curing agent capable of reacting with the amorphous polyester polyol, and a solvent, wherein the polyvalent carboxylic acid component comprises at least one type of ortho-oriented aromatic dicarboxylic acid or anhydride thereof, the polyhydric alcohol component comprises at least one compound selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, neopentyl glycol and cyclohexanedimethanol, an amount of the ortho-oriented aromatic dicarboxylic acid or anhydride thereof relative to a total mass of the polyvalent carboxylic acid component is from 70 to 100% by mass, and the amorphous polyester polyol has a glass transition temperature within a range from −30° C. to 30° C.