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US5009809A High temperature endothermic blowing agents compositions and applications 失效
高温吸热发泡剂的组成和应用

High temperature endothermic blowing agents compositions and applications
摘要:
A high temperature endothermic blowing agent which is a mixture of a polycarboxylic acid and an inorganic carbonate, the polycarboxylic acid and inorganic carbonate each having been surface treated with a component which prevents water from being absorbed thereby. The blowing agent is incorporated into a polymer and used for producing foamed products.
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