Use of insoluble soil collectors for at least partial regeneration of laundering and cleaning solutions

US4773939A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Alfred Meffert · Monheim, DE
• Andreas Syldatk · Goldkronach, DE
• Brigitte Giesen · Goldkronach, DE
• Ingo Wegener · Goldkronach, DE

Key dates

• Filing date: Feb 20, 1987
• Grant date: Sep 27, 1988
• Expiry date: Feb 20, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/91
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The process of regenerating a soil-laden detergent solution comprising contacting said solution with a soil collector comprising a polyfunctional quaternary ammonium compound which is at least substantially insoluble in the solution and/or immobilized on a solid correspondingly insoluble in the solution.