Polymeric pigment dispersant utilized as a grind resin for pigments in solventborne pigment dispersions and method of preparing the same
US7005473B2 · kind B2 · utility
7Cited by
22References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Dec 12, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a polyester polycarbamate polymeric pigment dispersant to be used as a grind resin to incorporate pigment into pigment dispersions for coating compositions. The pigment dispersant is the reaction product of a first compound having a plurality of hydroxyl groups, a carboxylic acid anhydride, a second compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a method of preparing the pigment dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.