Copolymers having gem-bisphosphonate groupings
US10081572B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F230/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. A composition, such as n admixture for suspensions of mineral particles, includes the copolymer. The copolymer can be used for fluidifying suspensions of mineral particles and maintaining the fluidity of such suspensions. The copolymer can also be used for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.