Means for imparting improved adhesion to polyolefin substrates

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

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) C08J 5/12 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2108931

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.

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