Method for the controlled radical polymerisation of acrylic acid and the salts thereof, polymers thus obtained and applications thereof
US7462676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2003 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/38
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns a process for controlled radical polymerisation of acrylic acid and its salts in a reactive medium constituted solely of water.The invention also concerns homopolymers and copolymers of acrylic acid obtained by the polymerisation process.Finally, the invention concerns the use of the said homopolymers and copolymers of acrylic acid in fields of industry such as the paper field and in particular the coating of paper and the mass-filling of paper, the oil field, or the fields of paint, water treatment, detergency, ceramics, cements or hydraulic binders, public works, inks and varnishes, sizing of textiles or the finishing of leather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.