Polymer packaging film and sheet capable of forming peelable sea

Details Polymer packaging film and sheet capable of forming peelable sea Polymer packaging film and sheet capable of forming peelable sea

1991-03-11

1992-07-07

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525222, 525227, C08L 2320

Patent

active

051284146

ABSTRACT:
Films or sheets are fabricated from blends of an ethylenic homopolymer or copolymer, a butene-1 copolymer, and a propylene homopolymer or copolymer which result in good peel seal characteristics, and wherein such films or sheets will bond to a polypropylene substrate in a laminar structure by extrusion lamination without the need for an adhesive.

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patent: 4189519 (1980-02-01), Ticknor
patent: 4335224 (1982-06-01), Matsuura et al.
patent: 4336212 (1982-06-01), Yoshimura et al.
patent: 4339507 (1982-06-01), Kurtz et al.
patent: 4546150 (1985-10-01), Shigemoto
patent: 4554321 (1985-11-01), Hwo et al.
patent: 4665130 (1987-05-01), Hwo
patent: 4701496 (1987-10-01), Yoshimura et al.

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