Semi-permanent hair straightening composition and method
US9872824B2 · kind B2 · utility
12Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2014 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Feb 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition and a process for straightening hair are disclosed. The process includes coating keratin fibers with a composition comprising a thermally-activated agent and contacting the coated keratin fibers with a heating device at a temperature of at least 185° C. for sufficient time to modify the keratin fibers. The thermally-activated agent comprises a heterocyclic compound containing two heteroatoms selected from nitrogen and oxygen in a 5 or 6-membered ring, such as a cyclic alkylene carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.