Ashland Oil, Inc.

Curtis Michael Graham

Billy M Culbertson

Larry K Post

Hans R Gabriel

Pressure-sensitive adhesives having improved cohesive strength are formed by reacting an acrylic interpolymer with a metal alkoxide or chelated metal alkoxide such as a chelated ester of orthotitanic acid. The novel feature of this invention comprises the use of an interpolymer containing a vinyl monomer which contains both a carboxylic acid and a carbamate functional group.

Pressure sensitive adhesion compositions

Pressure-sensitive adhesives having improved cohesive strength are obtained by reacting an acrylic interpolymer containing an interpolymerized acrylic monomer containing an ethylenically unsaturated carboxylic acid anhydride with a metal alkoxide, chelated metal alkoxides such as chelated titanium esters being particularly preferred. Adhesives produced in this manner have improved cohesive strength on backings while maintaining good tack and adhesive properties.

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Columbus, OH, United States of America

Curtis Michael Graham