4-[(2-oxo-3-bornylidene) methyl]phenyltrimethylammonium methyl sulfate in a permanent hair shaping composition for protection against the ravages of the weather and in particular against light
US5648069A · kind A · utility
1Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1994 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Aug 19, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Use of 4-[2-oxo-3-bornylidene)methyl]-phenyltrimethylammonium methyl sulphate to preserve the hair's mechanical properties, and especially its elasticity, from the ravages caused by the successive action of permanent hair shaping and light. The compound is for use in a quantity of between 0.05 and 15% by weight, in an aqueous reducing or setting composition or a composition employed in between these two steps, to achieve permanent hair shaping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.