Stable suspension of hydrocolloids and superplasticizer
US6106603A · kind A · utility
8Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Apr 16, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/46
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention comprises a stable hydrocolloid composition in which preferably welan gum is uniformly dispersed in a superplasticizer solution such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and solution thereof. The mixture is wet milled to form an extremely fine particle size, from about 3 microns to about 500 microns distribution of the gum. The composition is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.