Stable suspension of hydrocolloids
US6117226A · kind A · utility
16Cited by
27References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 1996 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | May 31, 2016 |
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 a hydrocolloid, preferably welan gum, is uniformly dispersed in a superplasticizer such as sulfonated naphthalene, sulfonated melamine, modified lignosulfate, their derivatives and mixtures thereof. This is then dispersed in a rheological control agent which is a microbially-produced cellulose fiber composition. The welan gum is rapidly hydratable and useful as a stabilizing additive in many cement and drilling fluid applications, insulation fluids and de-icer compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.