Title:
PIGMENT DISPERSION AND METHOD OF PREPARING THE SAME
Document Type and Number:
WIPO Patent Application WO2002051946
Kind Code:
A3
Abstract:
The present invention is directed to a polyester carboxylate polymeric pigment dispersant to be used as a grind resin to incorporate inorganic pigment into a pigment dispersion for a coating composition. The polymeric pigment dispersant is the reaction product of pentaerythritol, hexahydrophthalic anhydride, glycidylneodecanoate, and dimethylethanolamine. The present invention is also directed to a method of preparing the polymeric pigment dispersant. In this method, the pentaerythritol and the hexahydrophthalic anhydride are polymerized to form an intermediate compound. Next, an epoxy group of the glycidylneodecanoate reacts with the intermediate compound, and then the dimethylethanolamine neutralizes the intermediate compound to form the completed polymeric pigment dispersant. The polymeric pigment dispersant is utilized for efficient wetting and grinding of the pigment.
Inventors:
RAMESH SWAMINATHAN (US)
LANZA JOANN (US)
LANZA JOANN (US)
Application Number:
PCT/US2001/042954
Publication Date:
September 12, 2002
Filing Date:
November 19, 2001
Export Citation:
Assignee:
BASF CORP (US)
RAMESH SWAMINATHAN (US)
LANZA JOANN (US)
RAMESH SWAMINATHAN (US)
LANZA JOANN (US)
International Classes:
C08G63/42; C08G63/58; C08G63/685; C09B67/46; C09C1/36; C09C3/08; C09C3/10; C09K23/00; (IPC1-7): C09C3/00; C09C3/08; C09C3/10; C09D133/14; B01F17/00; C09B67/00
Foreign References:
| US5378762A | 1995-01-03 | |||
| GB1108261A | 1968-04-03 | |||
| EP0803556A1 | 1997-10-29 | |||
| US4224080A | 1980-09-23 |
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