G.f.c. Foam Corporation

Pcolinsky, Jr

Herman Stone

Peter D Pauly

Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from a reaction mixture comprising a polyether polyol, an organic polyisocyanate, a blowing agent, a surfactant, a catalyst, a flame retardant, and hydrated alumina. Alternatively, the mixture also comprises a low-viscosity linear polyester. The hydrated alumina is predispersed in a mixture comprising flame retardant and low-viscosity linear polyester, and alternatively a char former and a fugitive viscosity modifier.

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Hazleton, PA, United States of America

Pcolinsky, Jr