Method for preparing concrete superplasticizer having phosphorous acid group and use thereof
US10647803B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention discloses a method for preparing a concrete superplasticizer having a phosphorous acid group and a use of the concrete superplasticizer. The concrete superplasticizer having a phosphorous acid group according to the present invention is prepared by free radical copolymerization of a phosphorous-containing monomer A and a polyether macromonomer B. The concrete superplasticizer having a phosphorous acid group obtained in the present invention can effectively improve flowability of concrete and can retain good workability of concrete. The method is simple, economical and effective, and in particular, can be used for commercial mass production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.