Flexible polyurethane foam polyoxyalkylene polyol, and polymer-dispersed polyol, and method of manufacturing these

摘要

Even though the total degree of unsaturation is low, the content of the oxyethylene group is small, I to provide a method of 1 quaternization rate of the terminal hydroxyl group is capable of producing a high polyoxyalkylene polyol. In the presence of double metal cyanide complex catalyst (a1), the polymerization step of first obtaining the intermediate polyol first by ring-opening addition polymerization of a mixture of ethylene oxide and propylene oxide and / or propylene oxide, the initiator After polymerization of the first step, in the presence of (a2), an intermediate second polyol by ring-opening addition polymerization pro-pyrene oxide polymerization catalyst comprising a compound of the alcoholate or alkali metal / alkali metal hydroxides and and a second polymerizing step to obtain, after the polymerization step of the second, in the presence of a polymerization catalyst (a2), the polymerization step of the third gain (A1) is a polyoxyalkylene polyol by ring-opening addition polymerization of ethylene oxide , and a method for producing a polyoxyalkylene polyol.