CELLULAR VINYL ACETATE/ETHYLENE/N-METHYLOLACRYLAMIDE COPOLYMER CONTACT ADHESIVE

摘要

PATENT 182PUS04282 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.