Patent ID: 8871351
Filing Date: 2014-10-28
Classification: B32B,B65D,C23C,Y10T

Abstract:
1. An easy-open end having a score and a rivet, and having a polyester film applied, via a primer, onto an inner surface of an end of an aluminum base sheet on which a surface-treating layer has been formed, said surface-treating layer containing a zirconium compound and/or a titanium compound and an organic compound, wherein said primer is composed of a polyester resin and a phenol resin in the range from a weight ratio of polyester resin:phenol resin of 50:50 to 85:15, said polyester resin containing not less than 30% by weight of a carboxyl group-introduced polyester resin based on the weight of the polyester resin, said carboxyl group-introduced polyester resin is obtained by a ring-opening addition reaction of a compound having a carboxylic anhydride group with a polyester resin, the compound having a carboxylic anhydride group comprises carboxylic polyanhydride, and said carboxyl group-introduced polyester resin has not less than two carboxylic anhydride groups on a molecule thereof.