Use of acrylic polymers neutralized by lithium as dispersing agents or grinding aid agents of mineral materials in an aqueous medium
US8785536B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention pertains to the use of a homopolymer of acrylic acid or a copolymer of acrylic acid with a water-soluble monomer, as a dispersing agent or grinding aid agent in a method for manufacturing an aqueous suspension of mineral materials through dispersion and/or grinding, characterized in that the carboxylic groups of said agent are fully or partially neutralized by the lithium ion and in that it exhibits a viscosity index of between 0.01 and 0.08.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.