Water-soluble phthalocyanine dyestuffs, processes for their preparation and their use

US5256776A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Thomas Beck · Bad Soden am Taunus, DE
• Werner Russ · Flörsheim, DE
• Hartmut Springer · Königstein, DE
• Marcus Banfer · Bad Soden am Taunus, DE

Key dates

• Filing date: Aug 27, 1992
• Grant date: Oct 26, 1993
• Expiry date: Aug 27, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4418
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble phthalocyanine dyestuffs, processes for their preparation and their use Phthalocyanine dyestuffs, in particular copper phthalocyanine and nickel phthalocyanine dyestuffs, which contain one or more groups of the formula define below ##STR1## or one or more carboxy groups, or both groups, and which furthermore can have one or more sulfo groups, customary sulfonamide groups and/or groups of the general formula defined below ##STR2## dye materials containing hydroxy and/or carboxamide groups, in particular fiber materials, such as, for example, cellulose fiber materials, wool and polyamide fibers, in deep-colored, fast, mainly green shades. In the formulae: PA1 R.sup.1 and R.sup.2 are both, independently of one another, hydrogen or a lower optionally substituted aliphatic radical, G is lower alkylene, or is phenylene, which can be substituted by lower alkyl, lower alkoxy, halogen, sulfo, carboxy and/or nitro, or the grouping --N(R.sup.1)--G--N(R.sup.2)-- forms the bivalent radical of a saturated heterocyclic ring, W is halogen, lower alkoxy, aryloxy, sulfo, phenylsulfonyl, lower alkylsulfonyl or an optionally substituted amino group, or is a radical of the formula --N(R.s…