Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1991-11-12
1993-10-12
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 71, 521 72, 521142, 521146, 521149, 521150, 524556, 524559, 524560, 524571, C08J 930
Patent
active
052526224
ABSTRACT:
An aqueous contact adhesive composition comprising an aqueous adhesive copolymer emulsion, the adhesive composition having a durometer hardness 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.
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Air Products and Chemicals Inc.
Cooney Jr. John M.
Kight III John
Leach Michael
Marsh William F.
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