Method and composition for reducing malodor in permanently waved hair
US7955593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2006 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Sep 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method and composition treatment is used to reduce post permanent odor in permed or waved hair. The malodor in permed hair is reduced by applying a leave-in aqueous treatment of pH 2.5-4.5 containing, hydrolyzed vegetable protein, polyquaternium-7, dimethicone and fragrance containing at least four components with water/octanol partition coefficient Log Kow or log P of 3-4.5. The post permanent odor in hair is reduced by (1) minimizing any reactions of hair with residual chemical compounds in hair after the perming process or after the oxidation step and (2) lessen or suppress any odoriferous compounds by decreasing their vapor pressure and (3) depositing in hair long lasting fragrance components to mask or change the malodor to be more pleasant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.