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US 2020/0048468 A1Published application
Polymeric hair color composition
OwnerMichael Milbockerinventor
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Abstract
A polymeric hair colorant composition that may cure at ambient temperature, and is self-curable, may be obtained by attaching a protein bonding group to a polymeric backbone comprising chromophores. The protein bonding group may be an isocyanate or epoxy group pendant on the polymer backbone. The application of this self-curable polymeric hair colorant composition has neither organic solvent emission nor energy needed for curing.
Claims20
A polymeric protein colorant composition comprising:
- a polymeric backbone;
- at least one urethane or urea link;
- at least one chromophore;
- and
- at least one pendant tissue bonding group.
2 more elements
A polymeric protein colorant comprising the formula:
- wherein (a) R.sub.1 selected from the group comprising C.sub.1-12 alkylen, C.sub.6-10 arylen, (C.sub.6-10) aryl-(C.sub.1-6) alkylen, and (C.sub.1-6) alkyl-(C.sub.6-10) arylen, -(C.sub.1-6 alkylen-O-).sub.n-C.-sub.1-6alkylen-;
- with “n” being an integer from 0 to 6;
- (b) X being oxygen or NR′ with R′ selected from the group comprising hydrogen, C.sub.1-6 alkyl, C.sub.6-10 aryl, (C.sub.6-10) aryl-(C.sub.1-6) alkyl, and (C.sub.1-6) alkyl-(C.sub.6-10) aryl;
- (c) R.sub.2 selected from the group comprising C.sub.1-12 alkylen, C.sub.5-6 cycloalkylen, C.sub.6-10 arylen, (C.sub.6-10) aryl-(C.sub.1-6) alkylen, and (C.sub.1-6) alkyl-(C.sub.6-10) arylen, -(C.sub.1-6alkylen-O-).sub.n-C.sub.1-6alkylen-;
- with “n” being an integer from 0 to 6;
- and (d) D is a dye moiety.
3 more elements
Dependencies are inferred from the claim text.