Tris(hydroxymethyl) acrylamidomethane polymer, inverse latex and microlatex containing same, use of said polymer, inverse latex and microlatex
US7479521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/09
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns a linear or crosslinked polymer, characterized in that it is obtainable either by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)-ethyl]-propenamide, or by copolymerizing N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl][-propenamide with one or several monomers selected among cationic monomers, monomers comprising at least a strong acid function, partly salified or completely salified, monomers comprising at least a weak acid function, partly salified or completely salified or neutral monomers. The invention also concerns inverse latex or microlatex containing such a polymer. The invention further concerns the uses of said polymer in cosmetic or pharmaceutical compositions, as thickening agents in industrial or household detergents, as additives for assisted recovery of oil, as rheology modifier for drilling fluid or as flocculants for water treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.