Cement admixture product
US5665158A · kind A · utility
72Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Jul 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a polyoxyalkylene ammonium salt of an imidized polycarboxylic acid polymer cement admixture, storage stable aqueous solutions of said polymer, and to improved cement compositions containing said polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.