Method of controlled free radical polymerisation of acrylic acid and its salts thereof, resulting low-polydispersity polymers, and their uses
US7345121B2 · kind B2 · utility
3Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Jan 8, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the technical sector of the polymerisation of acrylic acid and its salts, more particularly in solution, more particularly by controlled radical method, the use of the corresponding organo-sulphurated transfer agents, the acrylic acid polymers thus obtained, having a very low polydispersity PD (or very low polymolecularity index IP, which is an equivalent term), and their applications in industry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.