Reactive colorants, mixtures of reactive colorants and production and use thereof

US6537332B1 · kind B1 · utility

Assignee

• Ciba Speciality Chemicals Corp. · US

Inventors

• Athanassios Tzikas · Pratteln, CH
• Herbert Klier · Bad Krozingen, DE

Key dates

• Filing date: Jan 24, 2001
• Grant date: Mar 25, 2003
• Expiry date: Jan 24, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/924
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyes of formula (1) whereinR1 and R2 are each independently of the other hydrogen or C1-C4alkyl, andD1 and D2 are each independently of the other a radical of formula (2)  wherein(R3)0-3 denotes from 0 to 3 identical or different substituents selected from the group halogen, C1-C4alkyl, C1-C4alkoxy, carboxy, nitro and sulfo, andX1 is a radical of formula (3a), (3b), (3c), (3d), (3e) or (3f)—SO2—Z  (3a),—NH—CO—(CH2)m—SO2—Z  (3b),—CONH—(CH2)n—SO2—Z  (3c),—NH—CO—CH(Hal)-CH2-Hal  (3d),—NH—CO—C(Hal)=CH2  (3e)or  whereinY is halogen, T independently thereof has a meaning given for Y or is a non-fiber-reactive substituent or is a fiber-reactive radical of formula (4a), (4b), (4c), (4d) or (4e)—NH—(CH2)2-3—SO2—Z  (4a),—NH—(CH2)2-3—O—(CH2)2-3—SO2—Z  (4b),  whereinZ is vinyl or a radical —CH2—CH2—U and U is a group removable under alkaline conditions,Z′ is a group —CH(Hal)-CH2-Hal or —C(Hal)=CH2,m…