Polymeric hair dyes

Details Polymeric hair dyes Polymeric hair dyes

2007-07-09

2010-06-08

Elhilo, Eisa B (Department: 1796)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

C008S552000, C008S554000, C008S647000, C008S657000, C546S264000

Reexamination Certificate

active

07731761

ABSTRACT:
Disclosed are polymeric dyes of formula (1a); (1b); or (1c); wherein A and B, independently from each other represent a polymer backbone; X1and X2independently from each other are a linkage group selected from —C1-C10alkylene-; —C2-C12alkenylene-; —C5-C10cycloalkylene-; C5-C10arylene; —C5-C10arylene-(C1-C10alkylene)-; —C(O)—; —(CH2CH2—O)1-5—; —C(O)O—; —OCO—; —N(R1)—; —CON(R1)—; —(R1)NC(O)—; -0-; —S—; —S(O)—; —S(O)2—; —S(O)2—N(R1R2); or the direct bond; R1and R2independently from each other are hydrogen; or unsubstituted or substituted, straight-chain or branched, monocyclic or polycyclic, interrupted or uninterrupted C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C10alkyl; or C5-C10alkyl(C5-C10aryl); Y1and Y2independently from each other are a residue of an organic dye; or hydrogen; wherein at least one of Y1and Y2is a residue of an organic dye; An1, An2and An3, independently from each other are an anion; a and b independently from each other are a number from 1 to 3; m is a number from O to 1000; n is a number from O to 1000; and p is a number from 1 to 1000; wherein the sum of m+n+p≧3.

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