C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
403/66, 154/107.
C09J 123/08 (2006.01) B32B 7/12 (2006.01) C08J 9/06 (2006.01) C08J 9/14 (2006.01) C09J 5/08 (2006.01) C09J 131/04 (2006.01) C09J 133/24 (2006.01)
Patent
CA 2037439
PATENT 182PUS04282 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 coating 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 and contains colloidal silica.
Air Products And Chemicals Inc.
Mcfadden Fincham
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