Water-soluble phthalocyanine dyes

US5302708A · 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 6, 1992
• Grant date: Apr 12, 1994
• Expiry date: Aug 6, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/517
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Phthalocyanine dyes, in particular copper phthalocyanine and nickel phthalocyanine dyes which contain one or more groups of the formula given and defined below ##STR1## or one or more carboxy groups or both groups and which furthermore can contain one or more sulfo groups, customary sulfonamide groups and/or groups of the formula given and defined below ##STR2## dye hydroxy- and/or carboxamide-containing materials, in particular fiber materials, such as cellulose fiber materials, wool and polyamide fibers, in fast, predominantly green hues of high color strength. In the formulae: R is hydrogen or a lower substituted or unsubstituted aliphatic radical, A is an aromatic carbocyclic or aromatic heterocyclic radical or an alkylene radical, which may be interrupted by 1 or 2 hetero groups, X is a direct bond or a divalent organic bridging member or together with the group --N(R)-- forms the divalent radical of a saturated heterocycle containing two N atoms, Y, in the case where A is an aromatic radical, is a direct bond or a carbamoylalkylene group or a methylene, ethylene, methylamino or .beta.-cyanoethylamino group, or Y is lower alkylene, in which case the grouping --X--A-- must be a…