Method of improving viscosity stability of aqueous compositions
US6337366B1 · kind B1 · utility
22Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/024
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of improving the viscosity stability of an aqueous composition by the addition to the aqueous composition of a mixture of at least one multiphobe and at least one monophobe is disclosed. The method is particularly useful for stabilizing the viscosity of an aqueous composition containing at least one associative thickener, when surfactants or additives containing surfactants, such as for example colorants, particularly at high levels, are added to the aqueous composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.