Cement additive composition comprising polycarboxylic acid-based copolymer
US11427509B2 · kind B2 · utility
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Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Dec 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/102
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present disclosure relates to a cement additive composition including a polycarboxylic acid-based copolymer. When the cement additive composition of the present disclosure is used for cement formulation, it may improve fluidity of the composition even in a high water reducing ratio range of the particle and effectively prevent slump loss of the cement formulation, while improving initial dispersibility due to excellent water reducing performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.