Cellular contact adhesive films with improved bond strength

Details Cellular contact adhesive films with improved bond strength Cellular contact adhesive films with improved bond strength

C - Chemistry, Metallurgy

09

J

403/66, 154/107.

C09J 123/08 (2006.01) B32B 7/12 (2006.01) C09J 5/08 (2006.01) C09J 131/04 (2006.01) C09J 133/02 (2006.01) C09J 153/02 (2006.01)

Patent

CA 2037453

ABSTRACT An aqueous contact adhesive composition comprising an aqueous adhesive copolymer emulsion, the adhesive composition having a durometer measured on the type A scale by ASTM D2240 of at least 20, and a blowing agent. The aqueous contact adhesive composition is applied as a coaling to a surface of each of two substrates, then foamed, and substantially dried to provide a dry cellular adhesive coating. The adhesive-coated surfaces are then joined. The preferred contact adhesive composition comprises a vinyl acetate/ethylene/- N-methylolacrylamide copolymer emulsion.

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