Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete admixture comprising the same
US4936918A · kind A · utility
8Cited by
0References
4Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 15, 1989 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Nov 15, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B24/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete admixture comprising the same for incorporation in cementing composition, for example, concrete, motar, cement paste and the like, for improving slumping characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.