Dispersant for hydraulic composition
US9029444B2 · kind B2 · utility
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3References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 15, 2009 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Apr 24, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a dispersant for a hydraulic composition, containing (A) a polymer composed of structural units, not less than 70% by weight of which are derived from a monomer represented by the following formula (1) and (B) a naphthalenesulfonic acid-formaldehyde condensate at a weight ratio of components (A) to (B), (A)/(B), of 1/99 to 75/25:H2C═CHCOOCH2CH2OH (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.