Triphendioxazine and triphendithiazine direct dyestuffs

US4990615A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hermann Henk · Cologne, DE
• Wolfgang Harms · Leverkusen, DE
• Peter Wild · Odenthal, DE

Key dates

• Filing date: Sep 12, 1989
• Grant date: Feb 5, 1991
• Expiry date: Sep 12, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B19/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Triphendioxazine and triphendithiazine direct dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description produce on natural and synthetic OH-- and NH-- containing materials clear blue dyeings having good light and wet properties.