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Substituted quinones or analogues as colouring agents
US9458142B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9458142-B2 |
| Application number | US-201314651747-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2013 |
| Priority date | Dec 13, 2012 |
| Publication date | Oct 4, 2016 |
| Grant date | Oct 4, 2016 |
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Abstract
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The invention relates to protein-adhesive dyes, to the preparation thereof and to preparations comprising same, and to a method for coloring keratin-containing fibers, in particular for coloring human hair.
First claim
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The invention claimed is: 1. A compound of the formula I where E denotes NR 4 or O, Sp denotes a bond, alk, —C(O)— or —(CO)-alk, D denotes a colour chromophore, R 1 , R 2 or R 3 each, independently of one another, denote —H, -A, —OA-, —(CH 2 ) p —OH, —C(O)OA, COOH or COOX, p denotes an integer from 1 to 4, X is the counterion to the [COO − ] group, R 4…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9458142B2 cover?
- The invention relates to protein-adhesive dyes, to the preparation thereof and to preparations comprising same, and to a method for coloring keratin-containing fibers, in particular for coloring human hair.
- Who is the assignee on this patent?
- Merck Patent Gmbh
- What technology area does this patent fall under?
- Primary CPC classification C07D405/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 04 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).