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IMPROVED SHELF LIFE OF POLYOL BLENDS CONTAINING HALOGENATED OLEFINS BY ENCAPSULATION OF ACTIVE COMPONENTS
IMPROVED SHELF LIFE OF POLYOL BLENDS CONTAINING HALOGENATED OLEFINS BY ENCAPSULATION OF ACTIVE COMPONENTS
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机译:活性成分的包封改善了含卤化烯烃的多元醇的货架寿命
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摘要
The shelf life of polyurethane polyol pre-blends containing halogenated olefins is extended by encapsulation of active components such as catalysts and/or surfactants. The active component is encapsulated in a crystallizable or thermoplastic polymer. The encapsulated particles have a size of 2,800 microns or less and the active components are not significantly leaked out, particularly in the presence of halogenated olefins.
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