Polymers produced by using sulphur compounds in the form of transfer agents for controlled radical polymerisation of acrylic acid and the use thereof
US8053497B2 · kind B2 · utility
2Cited by
2References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2010 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Oct 21, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention concerns the polymers obtained by the use of sulfur compounds in a process for controlled radical polymerization in water of acrylic acid and/or acrylic acid with hydrosoluble monomers. It concerns also their uses as dispersant agents or agents to aid grinding and/or co-grinding of mineral matters in aqueous suspensions, and as dispersant agents incorporated directly in aqueous formulations containing mineral matters. Finally, the invention concerns the formulations of mineral matters obtained in this manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.