Cement admixture composition
US5362323A · kind A · utility
41Cited by
8References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 9, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Feb 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/308
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cement admixture compositions formed from alkenyl ether/maleic anhydride copolymers having specific molecular structures have been found to impart a high degree of slump loss over a sustained period of time while not causing any significant set retardation of the treated cement based composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.