Method for reducing the viscosity of aqueous fluid
US4941537A · kind A · utility
26Cited by
9References
24Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 22, 1989 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Jun 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The viscosity of aqueous fluids thickened with a tertiary amino polygalactomannan is reduced by the addition of an alkali metal or alkaline earth metal salt of hypochlorous acid, or a chlorinated isocyanurate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.