Sulfonic acid monomer based compositions
US8907004B2 · kind B2 · utility
7Cited by
6References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 26, 2013 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/585
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a composition which comprises a stable aqueous dispersion of discrete polymer particles and a water-soluble dispersant adsorbed onto the surfaces of pigment particles, wherein the polymer particles comprise structural units of a sulfonic acid monomer or a salt thereof. The present invention addresses a need in the art by providing a way to improve the hiding efficiency of compositions containing pigment such as TiO2 and associative rheology modifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.