Thiazolylisoindolenine dyestuffs

US5646290A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Lorenz · Coburg, DE
• Klaus-Wilfried Wanken · Leverkusen, DE

Key dates

• Filing date: May 18, 1995
• Grant date: Jul 8, 1997
• Expiry date: May 18, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0034
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel thiozolylisoindolenine dyestuffs of the formula (I) ##STR1## have been found in which A represents N or a cyanomethylene radical, PA1 B represents a radical of the formula C(CN)COOR.sub.5 or N--R.sub.6 and the remaining substituents have the meanings given in the description. The invention also relates to mixtures thereof, a process for their preparation and their use for dyeing hydrophobic synthetic materials.