Cement dispersant and methods of making and using the same
US8623979B2 · kind B2 · utility
0Cited by
32References
9Claims
0Family size
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Key dates
| Filing date | Aug 8, 2007 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 27, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/408
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.