Packaging film with improved heat sealability

Details Packaging film with improved heat sealability Packaging film with improved heat sealability

1977-10-03

1978-11-14

Ansher, Harold

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428214, 428349, 428355, 428516, 428523, B32B 2732

Patent

active

041256620

ABSTRACT:
A packaging film composition having an improved heat seal range. The film comprises a core, which is preferably propylene homopolymer or copolymer but which may be a blend of polypropylene with any other compatible polymer, such core being coated on one or both sides with butene-1 homopolymer or with a copolymer of butene-1 with ethylene.

REFERENCES:
patent: T941020 (1975-12-01), Young
patent: T955009 (1977-02-01), Lansbury et al.
patent: 3088844 (1963-05-01), Hungerford
patent: 3201498 (1965-08-01), Brunson et al.
patent: 3285766 (1966-11-01), Barkis et al.
patent: 3891008 (1975-06-01), D'Entremont

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