Multi-layer polyolefin shrink film

Details Multi-layer polyolefin shrink film Multi-layer polyolefin shrink film

B - Operations, Transporting

32

B

18/783

B32B 27/32 (2006.01) G02B 6/44 (2006.01)

Patent

CA 1229708

ABSTRACT OF THE INVENTION A five layered thermoplastic film may be utilized to form storm windows or packaging material. A preferred embodiment of the film comprises a core layer consisting essentially of either (a) a copolymer of ethylene and vinyl acetate or (b) a three component blend of (a) a linear low density polyethylene, (b) a linear medium density polyethylene and (c) an ethylene vinyl acetate copolymer. The preferred embodiment also comprises two intermediate layers each consisting essentially of a linear low density polyethylene, and two surface layers each consisting essentially of either a four component blend of (1) a linear low density polyethylene, (2) a linear medium density polyethylene, (3) a copolymer of ethylene and vinyl acetate and (4) one or more light stabilizers, or a three component blend in which light stabilizers are not present.

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