Hydrogen peroxide-based compositions used as fixers for permanent-waving/straightening
US5833966A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Hydrogen peroxide-based compositions for the manufacture of, or use as fixers for, permanent-waving/straightening. The compositions comprise hydrogen peroxide and at least one carboxylic acid and/or a salt thereof, for example, citric acid, as well as at least one alkalinizing amino compound, for example, aqueous ammonia. Processes for the permanent-reshaping and/or shape-stabilizing of keratinous materials, especially hair, are also disclosed. The compositions according to the invention make it possible to overcome the drawbacks relating to softness, sensitization to dyeing, etc., associated in the prior art particularly with repeated application to the hair of permanent-waving/straightening operations, in particular those involving the use of carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.