Cleaning compositions with amphiphilic water-soluble polyalkylenimines having an inner polyethylene oxide block and an outer polypropylene oxide block

US8097579B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• James Lee Danziger · Mason, US
• Frank Hulskotter · Bad Dürkheim, DE
• Dieter Boeckh · Schifferstadt, DE
• Sophia Ebert · Mannheim, DE
• Andrea Misske · Speyer, DE
• Stefan Frenzel · Weinheim, DE

Key dates

• Filing date: Nov 7, 2008
• Grant date: Jan 17, 2012
• Expiry date: Jan 5, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3723
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Laundry detergent and cleaning compositions comprising amphiphilic water-soluble alkoxylated polyalkylenimine polymer having an inner polyethylene oxide block comprising 20 to 50 polyethylene oxide units and an outer polypropylene oxide block comprising 10 to 50 polyethylene oxide units and especially to such alkoxylated polyalkylenimines wherein the ratio of polyethylene oxide units and polypropylene oxide units is proportionally related to the square root of the number of polyalkylenimine units present in the backbone.