Heat-sealable, stretched composite flims

Details Heat-sealable, stretched composite flims Heat-sealable, stretched composite flims

1987-04-03

1989-05-16

Buffalow, Edith

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428353, 4284244, 428910, B32B 2700

Patent

active

048309184

ABSTRACT:
Heat-sealable composite films, stretched at least uniaxially, comprising a base layer, of a propylene polymer, which is provided on at least one of its surfaces with an adhesion promoter layer and a heat-sealable layer of a thermoplastic polyurethane elastomer.

REFERENCES:
patent: 3023126 (1962-02-01), Underwood et al.
patent: 4119267 (1978-10-01), Kydonieus
patent: 4564559 (1986-01-01), Wagner et al.
patent: 4612249 (1986-09-01), Packer et al.

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