Use of amphoteric surfactants in cosmetic compositions to precipitate cationic polymers on dilution
US6660285B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 5, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to the use of at least one amphoteric in transparent aqueous cosmetic compositions for the hair and/or the skin designed to be rinsed, comprising at least one anionic surface-active agent, at least one surface-active agent selected for the betaines and at least one water-soluble or water dispersible cationic polymer derived from a polysaccharide (PolC), as precipitant, in the diluted state, of said cationic polymer (PolC). The invention further relates to transparent aqueous cosmetic compositions for the hair and/or skin designed to be rinsed, comprising at least one one anionic surface-active agent, at least one surface-active agent selected for the betaines, at least one water-soluble or water dispersible cationic polymer derived from a polysaccharide (PolC), and at least one amphoteric surface-active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.