Compositions used in permanent alteration of hair color
US4834767A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Jun 10, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A permanent hair color altering composition comprising an aqueous preparation on the basis of melanin dissolution and/or oxidation of a hair colorant dye intermediate, which contains as a swelling and penetration agent, a quaternized amino lactam having the formula: ##STR1## wherein m is an integer having a value of from 1 to 4; R is alkylene having from 3 to 8 carbon atoms and is optionally substituted with C.sub.1 to C.sub.4 alkyl; R.sub.1, R.sub.2 and R.sub.3 are each independently selected from the group of alkyl, alkyleneoxy alkyl, alkylhydroxy, alkoxy, aryl, aralkyl, alkaryl, and alkylene amidoalkyl radicals, said groups each having from 1 to 30 carbon atoms and at least one of R.sub.1, R.sub.2 and R.sub.3 is a radical having from 8 to 30 carbon atoms; and X.sup.- is a chloride, bromide or iodide anion. The invention also relates to the use of said quaternized compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.