Cold sealable cohesive polymer coated polyolefin substrate

Details Cold sealable cohesive polymer coated polyolefin substrate Cold sealable cohesive polymer coated polyolefin substrate

1994-11-28

1996-01-23

Yoon, Tae H.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428343, 428354, 428355, 428414, 428502, 428523, B32B 2708, B32B 710

Patent

active

054864267

ABSTRACT:
A cold sealable emulsion-polymerized polymer cohesive formulation for coating a polyolefin film, preferably polypropylene, which has low surface tack characteristics and low blocking tendencies to an acrylic-based formulation prepared from the emulsion polymerization of acrylonitrile and one or more of a first soft monomer and a second functional monomer. A first soft monomer is any one of ethyl acrylate, hexyl acrylate, iso-octyl acrylate, butyl acrylate, isobutyl acrylate, methyl acrylate, 1,3-butadiene, vinylacetate and vinylidene chloride, and a second monomer is any one of methacrylic acid, acrylic acid, itaconic acid, crotonic acid, sulfoethyl methacrylate and maleic acid. The monomers are combined in weight percent amounts sufficient to achieve a glass transition temperature of at least about -35.degree. C.

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patent: 4898787 (1990-02-01), Min et al.
patent: 5382473 (1995-01-01), Musclow et al.

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