| Patent application number | Description | Published |
|---|
| 20080289121 | Method of coloring keratinous fibers comprising application of at least one aminopyrazolopyridine oxidation base in the absence of chemical oxidizing agents - Disclosed herein are methods for coloring keratinous fibers comprising applying to the fibers a dyeing composition comprising at least one aminopyrazolopyridine base, said coloring method being performed without the addition of chemical oxidizing agents. | 11-27-2008 |
| 20090044348 | Coloring composition comprising at least one azomethine compound with a pyrazolinone unit - The present disclosure relates to a composition for coloring keratin fibers which comprises, in an appropriate dyeing medium, at least one compound chosen from leuco compounds of formula (I), azomethine dyes with a pyrazolinone unit of formula (II), their mesomeric forms, acid addition salts and solvates thereof: | 02-19-2009 |
| 20090235467 | NEW AMINOINDOLIZINES, DYEING COMPOSITION COMPRISING AT LEAST ONE AMINOINDOLIZINE, METHODS AND USES THEREOF - A new class of chemical entities chosen from aminoindolizines of formula (I), acid addition salts thereof, and solvates thereof: | 09-24-2009 |
| 20100115711 | COMPOSITION FOR THE DYEING OF KERATIN FIBERS COMPRISING AT LEAST ONE 3-AMINO-PYRAZOLOPYRIDINE DERIVATIVE - Disclosed herein is a composition for the dyeing of keratin fibers, for example, human keratin fibers such as the hair, comprising at least one 3-amino pyrazolo-[1,5-a]-pyridine derivative or one of its addition salts and a method employing this derivative. The composition of the present disclosure makes it possible to obtain coloration in various shades that is powerful, chromatic, and aesthetic, with low selectivity and with good resistance to various aggressive factors to which the hair may be subjected, such as shampoos, the light, sweat and permanent shaping. | 05-13-2010 |
| 20100269269 | AZO DERIVATIVES CONTAINING A PYRAZOLINONE UNIT FOR DYEING KERATIN FIBRES - The subject of the present invention is azo derivatives containing a pyrazolinone unit having the following formula (I), their mesomeric forms, their addition salts with an acid and their solvates and their use for dyeing keratin fibers. The subject of the invention is also a composition for dying keratin fibers comprising at least one azo derivative containing a pyrazolinone unit of formula (I) as direct dye, and the method for dyeing keratin fibers using this composition. The present invention makes it possible in particular to obtain chromatic colours that are resistant to the various attacks to which the hair may be subjected, in particular to shampoos and to light. | 10-28-2010 |
| 20100275389 | METHOD FOR DYEING KERATIN FIBERS USING AT LEAST ONE COMPOUND OF AZOMETHINE TYPE COMPRISING A PYRAZOLOPYRIDINE UNIT - Provided herein is a method for dyeing keratin fibers, comprising applying to the keratin fibers, at least one composition comprising at least one compound chosen from compounds of leuco type of formula (I), dyes of azomethine type containing a pyrazolopyridine unit of formula (II) corresponding to the compounds of formula (I), mesomeric forms, isomers and tautomers thereof, and also acid-addition salts thereof and solvates thereof: | 11-04-2010 |
| 20100275390 | COMPOUNDS OF AZOMETHINE TYPE COMPRISING A CATIONIC PYRAZOLOPYRIDINE UNIT, FOR DYEING KERATIN FIBRES - Disclosed herein is at least one compound chosen from compounds of leuco type of formula (I), dyes of azomethine type comprising a pyrazolopyridine unit of formula (II) corresponding to the compounds of formula (I), mesomeric forms, isomeric and tautomeric forms thereof, acid-addition salts thereof and solvates thereof: | 11-04-2010 |
