Multi-layer polyolefin shrink film

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

1985-01-24

1987-02-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428332, 428515, 428516, 428520, B32B 2708

Patent

active

046439439

ABSTRACT:
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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Plastics World, Feb., 1981, Article entitled "LDPE meets its match Linear LDPE", pp. 45-50.
Modern Plastics, Aug., 1982, Articles entitled "LLDPE/HDPE" and Copolymers, p. 44.
Modern Plastics, Jan., 1982, Article entitled "More New-Generation PE on the Way; It could do wonders for '82 Business", pp. 56-57.

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