Patent ID: 6645609
Filing Date: 2003-11-11
Classification: B29C,B29K,B32B,C08L,Y10S,Y10T

Abstract:
A stretched multilayered film consisting essentially of:(a) a core layer which consists of Polypropylene homopolymer, and (b) a peelable outer layer, and (i) a further outer layer selected from the group consisting of (bâ€²) a separate peelable outer layer, and (c) a heat-sealable, non-peelable outer layer, wherein each peelable outer layer (b) and (bâ€²) independently 0.5 to 5 &mgr;m thick, comprises a copolymer of vinyl acetate and ethylene, and has a vinyl acetate proportion of from 3 to 30 wt. %, based on the weight of each of peelable outer layer (b) and (bâ€²), and said polypropylene layer (a) is interposed between said peelable outer layer (b) and said further outer layer (i).