Dispersants for emulsion paints
US6359058B1 · kind B1 · utility
9Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1999 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/45
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment dispersant, for instance for incorporation in an emulsion paint containing non-reactive or reactive pigment, is a water-soluble copolymer of monomer units derived from two or more monomers of the formula CH2═CR1—COOR2 wherein R1 is methyl in 75 to 85 mol % of the monomer units and is hydrogen in the remainder, and R2 is hydrogen or a cation in 75 to 85 mol % of the monomer units and is C1-8 alkyl in the remainder of the monomer units and wherein at least 80% of the R2 alkyl groups are butyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.