Endothermic blowing agents compositions and applications

Details Endothermic blowing agents compositions and applications Endothermic blowing agents compositions and applications

C - Chemistry, Metallurgy

08

J

48/47, 403/9

C08J 9/06 (2006.01) C08J 9/08 (2006.01)

Patent

CA 2016822

A stabilized powdered endothermic blowing agent which is a mixture of polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and the inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a composition for producing foamed products. Additives may be added to the composition which function in conjunction with the blowing agent to cause surface migration of the additives and/or improve weld line strength of the foamed products.

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