Pigment dispersant
US8129466B2 · kind B2 · utility
27Cited by
10References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2008 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Oct 31, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl(meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.