Pigment dispersant with hindered light amine stabilizer and pigment dispersions and coating compositions based thereon
US10557045B2 · kind B2 · utility
0Cited by
8References
19Claims
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Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Oct 26, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3415
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment dispersion is disclosed comprising (a) at least one pigment and (b) a polymeric dispersant comprising residual units derived from polymerization of a mixture of monomers comprising (b1) at least one ethylenically unsaturated hindered amine light stabilizing monomer and (b2) at least one additional ethylenically unsaturated monomer different from monomer (b1). Coating compositions comprising the same are also disclosed as are substrates coated at least in part with such coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.