Stable aqueous surfactant compositions
US6897253B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2003 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Oct 23, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A stable, aqueous composition containing a substantially crosslinked alkali-swellable acrylate copolymer rheology modifier, a surfactant, an alkaline material, and various compounds therein, as for example substantially insoluble materials requiring suspension or stabilization, such as a silicone, an oily material, or a pearlescent material. Additionally, this invention also relates to the formation of a rheologically and phase stable cationic hair dye composition. The invention further relates to the incorporation of an acidic material after the addition of an alkaline material to reduce the pH of the composition without negatively impacting the viscosity of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.