An index filtration method is disclosed for filtering graft polyol dispersions. The method allows for the rapid filtration of large volumes of graft polyol dispersion in an economical manner. The process can be highly automated. The resulting filtered graft polyol dispersion mainly has particles of 25 microns or smaller and is stable under a variety of conditions for at least 9 weeks.
申请公布号
WO2004037386(A2)
申请公布日期
2004.05.06
申请号
WO2003EP06359
申请日期
2003.06.17
申请人
BASF CORPORATION;LISA, RUDOLPH, ERNEST;ABRAHAM, GEORGE