Method of controlling viscosity of fabric softeners
US5447644A · kind A · utility
13Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1994 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | May 12, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/0015
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for controlling the viscosity of fabric softener compositions to thereby improve shelf life by first forming a microemulsion of a perfume and a surfactant by mixing a perfume and a surfactant at a temperature where each component is in the liquid state. Sufficient shearing forces are used to uniformly disperse the perfume in the surfactant to form a stable microemulsion of said perfume in said surfactant. The microemulsion is then mixed with a fabric softener base formulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.