Polyurethane bonded to cured rubber

Details Polyurethane bonded to cured rubber Polyurethane bonded to cured rubber

B - Operations, Transporting

29

D

18/129, 117/147,

B29D 30/40 (2006.01) C08J 5/12 (2006.01)

Patent

CA 1243154

Abstract of the Disclosure POLYURETHANE BONDED TO CURED RUBBER A method of preparing a composite of polyurethane bonded to the surface of a cured rubber substrate and the resulting composite. The method is comprised of first applying to a cleaned, cured rubber surface a coating of methylmethacrylate-natural rubber graft polymer and then applying a liquid polyurethane reaction mixture which is cured to form the resultant composite. The invention is particularly directed to the preparation of a tire comprised of a polyurethane carcass applied to a cured rubber tread and to a tire comprised of a polyurethane tread applied to a cured rubber carcass.

483720

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