Method for imparting improved adhesion to polyolefin substrates

Details Method for imparting improved adhesion to polyolefin substrates Method for imparting improved adhesion to polyolefin substrates

1993-09-29

1995-02-14

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156254, 156280, 1563063, 428142, 428543, B32B 3100

Patent

active

053891783

ABSTRACT:
Adhesion to polyolefin substrates of (meth)acrylic films or laminates or of coatings, inks, or paints is improved by forming a first film or sheet of a multi-stage polymer containing a crosslinked rubbery first-stage, applying the first film or sheet under heat and pressure to a polyolefin sheet or film, wherein the polyolefin is not rubber-modified, separating the two films or sheets mechanically to leave a thin tie-layer of the multi-stage polymer at or near the surface of the polyolefin sheet or film, and then laminating to the so-treated polyolefin sheet or film a (meth)acrylic sheet or film or applying a latex, paint, or ink.

REFERENCES:
patent: 3520753 (1970-07-01), Ryan et al
patent: 3798096 (1974-03-01), Grunwald et al.
patent: 4096202 (1978-06-01), Farnham et al.
patent: 4895760 (1990-01-01), Barger
patent: 4957974 (1990-09-01), Ilenda et al.
patent: 5035933 (1991-07-01), Ilenda et al.
patent: 5247024 (1993-09-01), Natoli et al.

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