Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1985-04-26
1986-04-22
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
264121, 26433119, 427373, 4273898, 521124, 528 50, 528 75, C08G 1814
Patent
active
045843252
ABSTRACT:
A process of preparing a fast reacting, light stable, sprayable or injectable polyester-modified polyurethane polymer reaction product to prepare coatings or molded products, which process comprises admixing and reacting together: a trimerized or biuret aliphatic polyisocyanate, such as a trimerized or biuret hexamethylene diisocyanate prepolymer; a polyamine to react as a chain extender for the prepolymer, such as for example, a diethyltoluene diamine, in an amount sufficient to react substantially with the free NCO groups of the trimerized or biuret prepolymer; an unsaturated polyester subject to cross linking by the use of a metal salt promotor, such as a cobalt salt promotor, and a peroxide initiator; the cobalt salt and the peroxide initiator present in an amount to provide for the curing of the unsaturated polyester.
REFERENCES:
patent: 4174307 (1979-11-01), Rowe
patent: 4182829 (1980-01-01), Walkowiak et al.
patent: 4218543 (1980-08-01), Weber et al.
patent: 4267299 (1981-05-01), Dechsle
Crowley Richard P.
Thermocell Development Ltd.
Welsh Maurice J.
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