One part activator and blowing agent for foaming plastics

Details One part activator and blowing agent for foaming plastics One part activator and blowing agent for foaming plastics

C - Chemistry, Metallurgy

08

J

48/47, 403/82

C08J 9/06 (2006.01) B29B 9/06 (2006.01)

Patent

CA 1218527

ABSTRACT OF THE DISCLOSURE A one-part activator and blowing agent system for foaming plastics comprising an alkali metal borohydride and a salt hydrate blended in a single pellet or as separate pellets with a dry inert resinous polymer carrier. The one-part system is blended with a resinous polymer and then the blend extruded at a temperature at which the blend becomes molten such that the salt hydrate releases its water of hydration to hydrolyze the borohydride and produce a cellular article.

463452

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