Hair dye
US8382856B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Dec 21, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B65/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
It is an object of the present invention to provide a safe hair dye, which requires a short hair dyeing time, has good hair dyeing property and color tone, and also has an effect of preventing photofading. The present invention provides a hair dye, which comprises a combination of (a) a first agent containing a substance reacting with iron to develop color and an ultraviolet absorbent having a 2-hydroxybenzophenone skeleton, and (b) a second agent containing iron salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.