Title:
FILTRATION METHOD FOR GRAFT POLYMER POLYOLS
Document Type and Number:
WIPO Patent Application WO2004037386
Kind Code:
A3
Abstract:
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.
Inventors:
LISA RUDOLPH ERNEST (US)
ABRAHAM GEORGE (US)
ABRAHAM GEORGE (US)
Application Number:
PCT/EP2003/006359
Publication Date:
July 01, 2004
Filing Date:
June 17, 2003
Export Citation:
Assignee:
BASF CORP (US)
LISA RUDOLPH ERNEST (US)
ABRAHAM GEORGE (US)
LISA RUDOLPH ERNEST (US)
ABRAHAM GEORGE (US)
International Classes:
B01D39/00; B01D29/09; B01D39/16; B01D39/18; B01D39/20; (IPC1-7): B01D29/96; B01D39/00
Foreign References:
| DE10116819A1 | 2001-10-11 | |||
| US5891982A | 1999-04-06 | |||
| GB2280857A | 1995-02-15 | |||
| EP0322750A1 | 1989-07-05 |
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