Patent ID: 8137413

Claim:
Aqueous composition for colouring keratin fibres especially human hair characterised in that it comprises at least one oxidative dye precursor, optionally at least one coupling agent and an aqueous emulsion of divinyldimethicone/dimethicone copolymer with an internal phase viscosity of more than 1×10 8 mm 2 /s measured at 0.01 Hz and at about 25° C. and at least one compound according to general structure R 1 -A—R 2 —B wherein R 1 is a saturated or unsaturated, straight or branched alkyl group with 8 to 24 C atoms, R 2 is a straight or branched alkyl group with 1 to 4 C atoms, A is a group selected from O, and B is selected from wherein R 3 and R 4 are the same or different is H or an alkyl with 1 to 4 C atoms, hydroxyl alkyl with 1 to 4 C atoms and dihydroxyl alkyl with 2 to 4 C atoms, R 5 , and R 6 are the same or different, an alkyl with 1 to 4 C atoms, hydroxyl alkyl with 1 to 4 C atoms and dihydroxyl alkyl with 2 to 4 C atoms, R 7 is an alkyl with 1 to 4 C atoms, hydroxyl alkyl with 1 to 4 C atoms or dihydroxyl alkyl with 2 to 4 C atoms and —R 2 -A—R 1 wherein R 1 , A and R 2 have the above meaning and X is chloride, bromide, methosulfate.