Patent ID: 8349440
Filing Date: 2013-01-08
Classification: B32B,Y10T

Abstract:
1. A high barrier multilayer film for functional medical solution product comprising, an outer layer comprising polyethyleneterephthalate and an inorganic oxide layer deposited directly on the polyethyleneterephthalate, the inorganic oxide layer being exposed to the atmosphere; a protective layer disposed directly beneath the polyethyleneterephthalate, the protective layer comprising metal alkoxide of M(OR)n (wherein M is Si, Ti, Al, Zr or Sn, R is an alkyl group of C1 to C6, and n is valence of M), or its hydrolysate form; a first adhesive layer disposed beneath the protective layer, the first adhesive layer comprising ester type polyurethane; a first intermediate layer disposed beneath the first adhesive layer, the first intermediate layer comprising ethylene vinyl alcohol copolymer; a second adhesive layer disposed beneath the intermediate layer, the second adhesive layer comprising ester type polyurethane; a second intermediate layer disposed beneath the second adhesive layer, the second intermediate layer comprising polyamide; a third adhesive layer disposed beneath the second intermediate layer comprising ester type polyurethane; and an inner layer disposed beneath the third adhesive layer, the inner layer comprising propylene-based polymer.