2-cyano-4,6-dinitrophenyl mono-azo dyes for polyester and cellulose acetate

US4802889A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Ulrich Bte,uml/u/ hler · Alzenau, DE
• Horst Tappe · Dietzenbach, DE
• Reinhard Kuhn · Frankfurt am Main, DE
• Albert Bode · Schwalbach, DE
• Margareta Boss · Hattersheim, DE

Key dates

• Filing date: Aug 24, 1987
• Grant date: Feb 7, 1989
• Expiry date: Aug 24, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/922
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Monoazo dyestuff of the formula ##STR1## wherein R.sup.1 is 4 alkyl having 1 to 3 carbon atoms, and PA1 R.sup.2 is methyl, ethyl or alkoxy having 1 to 4 carbon atoms hich is unsubstituted or substituted by methoxy or ethoxy is useful for dyeing and printing hydrophobic fibers a blue color.