Water in oil microemulsion peroxide compositions for use in coloring hair and related methods
US6315989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1999 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A water in oil microemulsion peroxide composition for coloring or lightening of hair comprising 1-99% of an aqueous phase in the form of dispersed microdroplets having a droplet size of 100 to 1500 Angstroms, 0.1-75% of a continuous oil phase; and 1-65% of an organic, surface active ingredient capable of interacting with the water phase and the oil phase to cause formation of the dispersed aqueous phase microdroplets, all percentages by weight of the total composition; and a method for coloring or lightening hair using the peroxide composition, and a method for reducing the amount of time necessary to permanently color hair using the peroxide composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.