N-Acyloyl-N-alkyl-alkylenediamines as dye levelers

US3999942A · kind A · utility

Assignee

• Cassella Farbwerke Mainkur Aktiengesellschaft

Inventors

• Christian Heid · San Mateo, US
• Karl-Heinz Keil · Hanau, DE
• Joachim Ribka · Offenbach am Main, DE
• Otto Trosken
• Gerhard Weckler
• Siegfried Wirth · Eßlingen, DE

Key dates

• Filing date: Apr 17, 1975
• Grant date: Dec 28, 1976
• Expiry date: Apr 17, 1995

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/927
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-Acyloyl-N'-alkyl-alkylenediamines of the formula ##STR1## are prepared by reacting N-alkyl alkylenediamines with a derivative of a di-carboxylic acid. The compounds and their salts are useful as levelling auxiliaries for the dyeing of polyacrylonitrile or polyester with basic dyestuffs. Advantageously, the compounds are employed in conjunction with a non-ionic dispersing agent, for example a polyethoxylated fatty alcohol, and a solvent to give an electrolyte-insensitive dye bath.