Process for permanent shaping of human hair
US8753616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention concerns a process for permanent shaping of human hair used both for the permanent waving of human hair with an excellent waving effect as well as for the straightening of curled hair. Accordingly, the first object of the present invention is a process for permanent shaping hair wherein an aqueous composition comprising at least one inorganic salt is applied onto hair and optionally processed up to 20 min and optionally rinsed off and subsequently a composition comprising at least one reducing agent is applied and rinsed off from hair after a processing time of 1 to 30 min and at a temperature of 20 to 45° C. and a composition comprising at least one oxidizing agent is applied and processed for 1 to 20 min at a temperature range of 20 to 45° C. and rinsed off from hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.