Method of bonding polyurethane to cured rubber

Details Method of bonding polyurethane to cured rubber Method of bonding polyurethane to cured rubber

1986-07-23

1987-11-03

Lowe, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 96, 156123, 1561286, 156315, 156332, 156338, 264135, 264265, 264269, 264275, B29C 3502, B29D 900, B32B 712

Patent

active

047041765

ABSTRACT:
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.

REFERENCES:
patent: 4240852 (1980-12-01), Gomberg et al.
patent: 4451615 (1984-05-01), Charnock

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