Process for producing an open cell foam

Details Process for producing an open cell foam Process for producing an open cell foam

C - Chemistry, Metallurgy

08

J

403/61, 204/91.3

C08J 3/28 (2006.01) C08J 9/00 (2006.01) C08J 9/38 (2006.01)

Patent

CA 1070642

ABSTRACT OF THE DISCLOSURE A process for producing an open cell foam by irradiating a composition comprising (a) a thermoplastic resin polymer blend including 1,2-polybutadiene as one component, (b) a photo- sensitizing agent and (c) a thermally decomposable foaming agent, with ultraviolet light having a wavelength ranging from about 254 to about 400 mµ to thereby cross-link mainly the 1,2-poly- butadiene, and subsequently foaming the composition at a temp- erature higher than the softening point of the 1,2-polybutadiene and that of the thermoplastic resin polymer blended therewith and higher that the decomposition temperature of the foaming agent.

281610

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