Patent ID: 8124236
Filing Date: 2012-02-28
Classification: B32B,C08J,Y10T

Abstract:
1. A gas-barrier laminate for hydrothermal treatment, comprising a base plastic film, a coating layer formed on at least one surface of the base plastic film, an inorganic thin film formed on a surface of the coating layer which is made of a metal compound and/or silicon compound, and a heat-sealable plastic film laminated on the inorganic thin film or the base plastic film, wherein the coating layer comprises a crosslinking aqueous resin comprising at least one group selected from the group consisting of a melamine group and a carbodiimide group, an aqueous polyurethane-based resin which is the reaction product of a polycarbonate-based polyhydroxy compound and a polyisocyanate compound, and an aqueous acrylic resin; the amount of the crosslinking aqueous resin is 10 to 60% by weight of the coating layer in terms of a solid content thereof; and the inorganic thin film before laminating the heat-sealable plastic film thereon has a rubbing strength of not less than 20 times as measured under a load of 70 g, and the coating layer has a hardness of 0.15 to 0.40 GPa.