Oriented white opaque multilayer heat sealable film and method o

Details Oriented white opaque multilayer heat sealable film and method o Oriented white opaque multilayer heat sealable film and method o

1988-06-16

1990-07-31

Buffalow, Edith

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428 365, 428 366, 428414, 4283044, 428516, 428522, 428518, 428910, C09J 702

Patent

active

049449907

ABSTRACT:
A multi-layer heat sealable structure comprising a substrate including a white opaque polyolefin film, which is preferably cavitated. A second layer is coextruded on at least one surface of the substrate. The second layer includes a heat sealable homopolymer, copolymer, terpolymer or blend thereof. A primer coating is disposed on at least one surface of the second layer. A heat sealable layer is disposed on the primer coating. The heat sealable layer includes a vinylidene chloride copolymer containing at least 50% by weight of vinylidene chloride.
A method for producing the present multi-layer heat sealable structure is also disclosed.

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patent: 4758462 (1988-07-01), Park et al.

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