Colorant salts and their use in dyeing polymeric material

US6221114A · kind A · utility

Assignee

• BASF SE

Inventors

• Frank Würthner · Lindau (Bodensee), DE
• Rudiger Sens · Ludwigshafen, DE
• Gunther Seybold · Schifferstadt, DE
• Karl-Heinz Etzbach · Bischofswerda, DE

Key dates

• Filing date: Sep 17, 1999
• Grant date: Apr 24, 2001
• Expiry date: Sep 17, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/919
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dye salts which are free from fiber-reactive radicals and have the formula ##STR1## where PA1 Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing phthalocyanines, of the quinacridones, of the mono-, dis- or polyazo dyes, of the anthraquinones or copper formazans, PA1 Ar is phenyl or naphthyl each of which is unsubstituted or substituted, PA1 x.sup..sym. is a metal cation or ammonium ion, PA1 y.sup..sym. is a proton, metal cation or ammonium ion, PA1 m is 1 to 6 and PA1 n is 1 to 6, the sum of m and n being not more than 7, are used in methods of dyeing or printing polymeric material and in dye preparations.