Colorant mixtures
US-11407912-B2 · Aug 9, 2022 · US
Disperse azo dyes
US9938411B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9938411-B2 |
| Application number | US-201113991456-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 28, 2011 |
| Priority date | Dec 20, 2010 |
| Publication date | Apr 10, 2018 |
| Grant date | Apr 10, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to disperse azo dyes based on diazo components having at least one fluorine-containing substituent and an 2,6-diaminosubstituted pyridine coupling component, to a process for the preparation of such dyes and to their use in the dyeing or printing of semi-synthetic and, especially, synthetic hydrophobic fiber materials, more especially textile materials.
First claim
Opening claim text (preview).
What is claimed is: 1. A dye of formula wherein R 1 is trifluoromethyl, R 2 denotes nitro, R 3 represents hydrogen, R 4 is phenyl and R 5 is hydrogen. 2. A process for the preparation of an azo dye of formula (1) according to claim 1 , wherein a compound of formula wherein R 1 , R 2 and R 3 are as defined in claim 1 , is diazotised and then coupled to a coupling component of formula wherein R 4 and R 5 are as defined in claim 1 . 3. A dye mixture comprising a dye of formula (1a) according to claim 1 and a dye of formula (1b) wherein R 1 is trifluoromethyl, R 2 denotes nitro, R 3 represents hydrogen, R 4 is hydrogen and R 5 is phenyl. 4. A process for the dyeing or printing of a semi-synthetic or synthetic hydrophobic fibre material, wherein a dye of formula (1a) according to claim 1 is applied to the said material or is incorporated into that material. 5. A process for the dyeing or printing of a sung-synthetic or synthetic hydrophobic fibre material, wherein a dye mixture according to claim 3 is applied to the said material or is incorporated into that material.
Assignees
Inventors
Classifications
using dispersed dyestuffs · CPC title
Azo dyes · CPC title
- C09B29/3639Primary
from a pyridine ring containing one or more amino groups · CPC title
- C09B29/0003Primary
from diazotized anilines · CPC title
containing a six-membered heterocyclic with only one nitrogen as heteroatom · CPC title
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Frequently asked questions
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- What does patent US9938411B2 cover?
- The present invention relates to disperse azo dyes based on diazo components having at least one fluorine-containing substituent and an 2,6-diaminosubstituted pyridine coupling component, to a process for the preparation of such dyes and to their use in the dyeing or printing of semi-synthetic and, especially, synthetic hydrophobic fiber materials, more especially textile materials.
- Who is the assignee on this patent?
- Nowack Patric, Lauk Urs, Tzikas Athanassios, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C09B29/3639. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 10 2018 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).