Patent ID: 6576348
Filing Date: 2003-06-10
Classification: B32B,Y10T

Abstract:
A multilayer film having a lamination side and a heat-sealable side comprising:a) an inner layer (i) of ethylene/vinyl alcohol copolymer; b) a coupling agent layer (ii) and a separate coupling agent layer (iiâ€²), said inner layer (i) being interposed between and in contact with each of said coupling agent layer (ii) and said separate coupling agent layer (iiâ€²); c) at least one further layer (iii), said separate coupling agent layer (iiâ€²) being interposed between and in contact with each of said inner layer (i) and said layer (iii); d) at least one layer (iv), said coupling agent layer (ii) being interposed between and in contact with each of said inner layer (i) and said layer (iv); and e) a heat-sealable layer (v), said layer (iv) being interposed between and in contact with each of said coupling agent layer (ii) and said heat-sealable layer (v); wherein said multilayer film contains sorbitan monoester in an amount totaling from 0.1 to 3 wt. %, based on the total weight of said multilayer film, said layer (iii) defining said lamination side of said multilayer film, and said heat-sealable layer (v) defining said heat-sealable side of said multilayer film.