Heat shrinkable laminate film

Details Heat shrinkable laminate film Heat shrinkable laminate film

1993-02-08

1994-06-07

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428 349, 428349, 4284758, 428516, 428520, 428522, 428913, B32B 702

Patent

active

053188292

ABSTRACT:
A heat shrinkable laminate film is disclosed which includes a core layer formed of an ethylene-vinyl alcohol copolymer, two intermediate layers provided on opposite surfaces of the core layer and each formed of a copolymer selected from (a) copolymers of an unsaturated carboxylic acid or a derivative thereof and propylene and (b) copolymers of an unsaturated carboxylic acid or a derivative thereof and an alpha-olefin-propylene copolymer containing not greater than 10% by weight of alpha-olefin comonomer, and two outer layers provided on respective surfaces of the intermediate layers and each formed of an ethylene polymer.

REFERENCES:
patent: 4501797 (1985-02-01), Super et al.
patent: 4610914 (1986-09-01), Newsome
patent: 4695491 (1987-09-01), Kondo et al.
patent: 4726984 (1988-02-01), Shah

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