Title:
DISPERSANTS
Document Type and Number:
WIPO Patent Application WO2002085507
Kind Code:
A3
Abstract:
A dispersant comprising a polyester chain obtainable by polymerising a hydroxy carboxylic acid or lactone thereof such as epsilon -caprolactone with a cyclic alkylene carbonate such as 5,5-dimethyltrimethylene carbonate. The dispersant may be in the form of a phosphate ester where the polyester chain is reacted with a phosphating agent such as polyphosphoric acid or the polyester chain may be attached to a polyamine or polyimine such as polyethyleneimine.
Inventors:
THETFORD DEAN (GB)
Application Number:
PCT/GB2002/001266
Publication Date:
December 19, 2002
Filing Date:
March 15, 2002
Export Citation:
Assignee:
AVECIA LTD (GB)
THETFORD DEAN (GB)
THETFORD DEAN (GB)
International Classes:
C08G63/64; C09B67/46; C09D7/45; C09D11/00; C09D17/00; C09K23/00; C09K23/02; C09K23/14; C09K23/16; C09K23/34; C09K23/52; (IPC1-7): B01F17/00; C08G63/68; C08G63/64; C08G63/06; C08G63/08; C09D7/02; C09D17/00; C09B67/00; C09D11/02
Domestic Patent References:
| WO1999049963A1 | 1999-10-07 | |||
| WO2001021298A1 | 2001-03-29 | |||
| WO1998019784A1 | 1998-05-14 |
Foreign References:
| US5700395A | 1997-12-23 | |||
| US5536445A | 1996-07-16 | |||
| US3301824A | 1967-01-31 | |||
| US5824333A | 1998-10-20 | |||
| EP0682054A2 | 1995-11-15 | |||
| EP0628587A2 | 1994-12-14 |
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