Method for improving thickeners for aqueous systems
US5376709A · kind A · utility
19Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Mar 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/43
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved method is provided for reversibly suppressing the viscosity of an aqueous solution containing a hydrophobically modified thickener by first complexing the hydrophobic moieties of the thickener with a methyl-.beta.-cyclodextrin and then decomplexing the methyl-.beta.-cyclodextrin from the thickener once the aqueous solution containing the thickener is added to the aqueous system which is intended to thicken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.