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1. (WO2018185344) HAIR DYEING PROCESS COMPRISING A BLOCK POLYMER BEARING PHOSPHONIC ACID GROUPS AND A PIGMENT

Pub. No.:    WO/2018/185344    International Application No.:    PCT/EP2018/059045
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Tue Apr 10 01:59:59 CEST 2018
IPC: A61Q 5/06
A61K 8/90
A61K 8/19
Applicants: L'OREAL
Inventors: CHODOROWSKI-KIMMES, Sandrine
Title: HAIR DYEING PROCESS COMPRISING A BLOCK POLYMER BEARING PHOSPHONIC ACID GROUPS AND A PIGMENT
Abstract:
The invention relates to a hair dyeing process comprising at least one pigment, at least one additional component selected from cross linking agents and/or plasticizers and at least one block polymer comprising: a first block with a glass transition temperature (Tg) of greater than or equal to 40°C derived from a monomer CH2 = C(R1)-COOR2 in which R1 = H or methyl, R2 = C4 to C12 cycloalkyl group; and a second block with a glass transition temperature (Tg) of less than or equal to 20°C derived from a vinylphosphonic acid and from a monomer CH2 = C(R1)-COOR3 in which R1 = H or methyl, R3 = linear or branched C1 to C6 unsubstituted alkyl group, with the exception of a tert-butyl group or a methoxyethyl group.