Phase stable viscoelastic cleaning compositions
US5336426A · kind A · utility
Inventors
Key dates
| Filing date | Jul 15, 1991 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A thickened aqueous cleaning composition is viscoelastic, and has utility as a drain opening composition or as a hard surface cleaner having a cleaning-effective residence time on non-horizontal surfaces. In one embodiment the composition comprises a cleaning active, a quaternary ammonium compound, and an organic counterion. In another embodiment, the viscoelastic quality of the composition is advantageously utilized as a drain opener which rapidly penetrates standing water with minimal dilution to deliver active to the clog material. In these embodiments and corresponding methods of use, a free amine is limited with respect to the amount of the quaternary ammonium compound in the composition in order to maintain phase stability and to achieve further enhanced rheological and aesthetic properties in the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.