Block copolymers as soil release agents in laundry processes

US9790452B2 · kind B2 · utility

Assignees

• BASF SE
• Henkel AG & Co. KGaA · DE

Inventors

• Huiguang Kou · Viernheim, DE
• Frank Oliver Heinrich Pirrung · Ludwigshafen am Rhein, DE
• Roland Ettl · Haßloch, DE
• Bernhard Ulrich von Vacano · Mannheim, DE
• Dario Perera-Diez · Lahr (Eifel), DE
• Paula Barreleiro · Mülheim an der Ruhr, DE
• Christa Junkes · Goldkronach, DE
• Johannes Zipfel · Amsterdam, NL
• Brigitte Giesen · Goldkronach, DE
• Cornelius Bessler · Mülheim an der Ruhr, DE
• Martina Hutmacher · Düsseldorf, DE

Key dates

• Filing date: Mar 17, 2014
• Grant date: Oct 17, 2017
• Expiry date: Mar 17, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2438/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Described are block copolymers which have been prepared by controlled free radical polymerization. Also described is the use of said block copolymers as soil release agents in laundry processes and a process to produce said block copolymers. Further described is a method for easier releasing soil from textiles in laundry processes and a detergent containing said block copolymers.