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US06746759B2 Cellular plastic material based on phenolic resin 失效
基于酚醛树脂的蜂窝塑料

Cellular plastic material based on phenolic resin
摘要:
A resin mixture for forming a stable closed cell foam contains a phenolic resole, a chain extending agent, and as curing agents, a base, and an ester and/or an aliphatic carbonate. The chain extending agent is especially an epoxy resin and/or a phenolic novalak resin.
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