Heat sealable laminated propylene polymer packaging material

Details Heat sealable laminated propylene polymer packaging material Heat sealable laminated propylene polymer packaging material

1979-02-08

1980-10-28

Ansher, Harold

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

156229, 428513, 428516, 428523, B32B 2732, B32B 3116

Patent

active

042307678

ABSTRACT:
A packaging material having an excellent seal packaging property, which comprises (A) a base layer consisting of a stretched film made of a polymer composition comprising a propylene polymer and (B) a surface layer consisting of a stretched film made of a polymeric mixture comprising a polymer blend provided on at least one surface of said base layer, said polymer blend comprising a copolymer of ethylene and propylene and a copolymer of butene and any other polymerizable monomer having an ethylenic unsaturation in a weight proportion of 5:95 to 95:5.

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patent: 4169910 (1979-10-01), Graboski
patent: 4178401 (1979-12-01), Weinberg et al.

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