PRESSURE SENSITIVE ADHESIVE LAMINATE

World Intellectual Property Organization Patent

APP PUB NO WO-1990013416-A1
SERIAL NO

PCTUS9002566

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Abstract

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This invention relates to improved polymer-pressure sensitive adhesive combinations, particularly in the form of laminates, and methods of producing same. This invention improves the bond strength of the pressure sensitive adhesive to the polymer layer by priming the polymer surface with a curable urethane primer before applying the pressure sensitive adhesive to the polymer surface. If the polymer surface is not 'active' to the curable urethane primer, the polymer surface is first activated with a silicon-containing treating agent. The laminates of this invention have superior bond strength, especially long-term bond strength. Of particular interest are the embodiments of this invention wherein the polymer is a silicone foam and the pressure sensitive adhesive is either acrylic or silicone adhesive.

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Patent Owner(s)

Patent OwnerAddress
ATD CORPUSMISSOURI USA

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Inventor(s)

Inventor Name Address
RAGLAND G WILLIAM DUNWOODY GA 30338
BARNARD BOYD A ST LOUIS MO 63119

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