Cationic phthalocyanine dyes

US4648993A · kind A · utility

Assignee

• BASF SE

Inventors

• Horst Colberg · Schifferstadt, DE
• Udo Mayer · Bischofswerda, DE

Key dates

• Filing date: Jul 8, 1985
• Grant date: Mar 10, 1987
• Expiry date: Jul 8, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B47/32
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A compound useful for dyeing acid-modified fibers, having the formula ##STR1## where R.sup.5 is hydrogen, methyl or ethyl; R.sup.2 and R.sup.3 are each methyl, ethyl, .beta.-hydroxyethyl, .beta.-hydroxypropyl or benzyl; A.sup.- is an anion; m is 2 or 3 and n is 0.1 to 1 based on statistical averages.