Synthetic method for high-activity flame-retardant polyether polyol
The invention relates to polyether polyol, in particular to a synthetic method for high-activity flame-retardant polyether polyol. The method includes the steps of adding melamine with polyhydric alcohol as initiator, and conducting ring opening polymerization on the mixture, epoxypropane and oxiran...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to polyether polyol, in particular to a synthetic method for high-activity flame-retardant polyether polyol. The method includes the steps of adding melamine with polyhydric alcohol as initiator, and conducting ring opening polymerization on the mixture, epoxypropane and oxirane under the existence of basic catalysts. Melamine is added with polyhydric alcohol as initiator, and ring opening polymerization is conducted on the mixture, epoxypropane and oxirane under the existence of basic catalysts so that the high-activity flame-retardant polyether polyol can be obtained. The high-activity flame-retardant polyether polyol synthesized according to the method is lasting in flame retardation and stable in quality, and polyurethane foam prepared from the high-activity flame-retardant polyether polyol is good in flame-retardant effect. |
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