Phthalocyanine reactive dyestuffs

US4268267A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl H. Duchardt · Cologne, DE
• Manfred Groll · Leverkusen, DE
• Klaus Wunderlich · Waiblingen, DE

Key dates

• Filing date: Oct 19, 1979
• Grant date: May 19, 1981
• Expiry date: Oct 19, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyestuffs of the formula ##STR1## wherein Pc, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Ar, R.sub.5, R.sub.6, a, b and c have the meaning indicated in the description, and their use for dyeing and printing materials which contain hydroxyl or amide groups, such as textile fibres, filaments and fabrics made of wool, silk and synthetic polyamide and polyurethane fibres and for wash-fast dyeing and printing of natural or regenerated cellulose. The invention relates to new water-soluble phthalocyanine dyestuffs which, in the form of their free acids, have the formula ##STR2## wherein Pc is the radical of a copper phthalocyanine or nickel phthalocyanine, PA0 R.sub.1 and R.sub.2 are hydrogen or optionally substituted alkyl, or R.sub.1 +R.sub.2 together with N are a 5-membered or 6-membered heterocyclic ring, PA0 R.sub.3 and R.sub.4 are hydrogen or optionally substituted alkyl, PA0 Ar is arylene substituted by SO.sub.3 H or/and COOH and optionally by other atoms or groups of atoms, PA0 R.sub.5 and R.sub.6 are hydrogen, optionally substituted alkyl, cycloalkyl or aralkyl or an optionally substituted aryl radical which is free from sulphonic acid and carboxylic acid groups, or R.sub.5 +R.sub.6 tog…