Hair waving or straightening process and product
US4416297A · kind A · utility
22Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1981 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Aug 13, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/5426
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for waving or straightening hair in which an anionic surfactant is added to the hair reducing solution and the hair is treated either during a prewetting step or during neutralization, or both with a cationic polymer product which forms a substantially water insoluble complex with the anionic surfactant in the presence of hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.