Dispersing polymers with improved thermal stability
US9546111B2 · kind B2 · utility
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2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2012 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates mainly to a polymer comprising a hydrocarbon-based main chain bearing carboxylic groups and polyalkoxylated chains and up to 4% by weight of anti-oxidant groups, relative to the weight of the final polymer, grafted to the main chain. It also relates to a method for preparing such a polymer and to an admixture which is of use as a plasticizer of suspensions of mineral particles comprising same. Finally, it is related to the use of such a polymer for fluidifying suspensions of mineral particles and reducing the water demand of hydraulic compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.