Process for reducing the level of unsaturation in a polyether polyol having an oxypropylene content of at least 30% by weight calculated on the total amount of oxyalkylene units in the polyol and having a number average equivalent weight of at least 1000 by subjecting the polyol to ultrafiltration.
申请公布号
US5767324(A)
申请公布日期
1998.06.16
申请号
US19960744546
申请日期
1996.11.06
申请人
IMPERIAL CHEMICAL INDUSTRIES PLC
发明人
CHAFFANJON, PIERRE GILBERT HENRI JEAN;LE, MINH SON;CARR, ROBERT HENRY;COLQUHOUN, HOWARD MATTHEW;HERNALSTEEN, JAN FRANS;DEVOS, JULIEN ARMAND
