Henkel Ag & Company, Kgaa

National Starch and Chemical Investment Holding Corporaton

Peter A Walter

Charles Willard Paul

Cynthia L Meisner

Eric N Silverberg

A process for the preparation of pressure sensitive adhesive tapes where cationic cure is conducted against liners and substrates with low moisture content and in an environment where moisture ingress during cure is prevented.

Process for making pressure sensitive adhesive tapes from cationic cure adhesives

Pressure sensitive adhesive tapes produced by a process where cationic cure is conducted against a paper film substrate and an optional second film substrate, both having low moisture content. The low moisture content is maintained during cationic cure by putting the pressure sensitive adhesive tapes in an environment where moisture ingress is prevented. The maintenance of low moisture during cure provides enhanced SAFT values.

Pressure sensitive adhesive tapes from cationic cure adhesives

Pressure sensitive adhesive formulations comprising an acrylic copolymer and a mixture of tackifiers exhibit outstanding adhesion to foam facestocks.

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Hampton, NJ, United States of America

Peter A Walter