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POLYURETHANE FOAMS CO-BLOWN WITH A MIXTURE OF A HYDROCARBON AND A HALOGENATED OLEFIN
POLYURETHANE FOAMS CO-BLOWN WITH A MIXTURE OF A HYDROCARBON AND A HALOGENATED OLEFIN
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机译:聚氨酯泡沫与烃和卤化烯烃混合共吹
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摘要
This invention relates to rigid polyurethane foams which are co-blown with a mixture of a hydrocarbon blowing agent and a halogenated olefin blowing agent. This invention also relates to a process for preparing these rigid polyurethane foams, and to an isocyanate-reactive component containing a polyol blend and the mixture of blowing agents. Phase stable isocyanate-reactive blends are also described.
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