Water-insoluble azlactone dyestuffs, processes for their preparation and their use for dyeing or printing synthetic fiber materials

US4311836A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventor

• Rudolf Schickfluss

Key dates

• Filing date: Oct 17, 1980
• Grant date: Jan 19, 1982
• Expiry date: Oct 17, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B57/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-insoluble azlactone dyestuffs of the formula ##STR1## wherein A represents phenyl, chlorophenyl, bromophenyl, lower alkyl-phenylene, lower alkoxy-phenylene or pyridyl, B represents phenyl, chlorophenyl, lower alkyl-phenylene, lower alkoxy-phenyl, di(lower alkyl) amino-phenylene, cyano-phenyl, ##STR2## acetylamino-phenylene, nitro-phenyl, methylenedioxyphenyl, naphthyl, furyl, thienyl, pyrollyl, N-lower alkyl-pyrollyl, pyridyl or indolyl, and n stands for the integer 0 or 1, said dyestuffs being suitable--alone or in mixture with one another or in mixture with other dyestuffs--for the dyeing or printing of synthetic fibrous materials, such as fibers of cellulose di, 21/2- or triacetate, polyamides or particularly of polyesters, such as polyethylene terephthalate.