Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete admixture comprising the same
US5092934A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1990 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Mar 26, 2010 |
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 compositions, for example, mortar, cement paste and the like, for improving slumping characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.