Patent ID: 8691394
Filing Date: 2014-04-08
Classification: B32B,Y10T

Abstract:
1. A heat-shrinkable multilayer film, comprising: an outer surface layer comprising a polyester type resin; and an intermediate layer comprising a polystyrene type resin, said outer surface layer and said intermediate layer being laminated by interposing an adhesive layer consisting essentially of a polyester type elastomer, wherein the polyester type elastomer composing the adhesive layer is a block copolymer comprising a polyester and polyalkylene ether glycol, and wherein the polyester type resin composing the outer surface layer contains a component derived from terephthalic acid as a dicarboxylic acid component, and contains a component derived from ethylene glycol and a component derived from 1,4-cyclohexanedimethanol as a diol component.