Detergents containing graft copolymers of polyalkylene oxides and vinyl acetate as antiredeposition inhibitors

US4746456A · kind A · utility

Assignee

• BASF SE

Inventors

• Alexander Kud · Eppelsheim, DE
• Guenther Schulz · Bad Dürkheim, DE
• Wolfgang Trieselt · Ludwigshafen, DE
• Heinrich Hartmann · Schifferstadt, DE

Key dates

• Filing date: Oct 2, 1986
• Grant date: May 24, 1988
• Expiry date: Oct 2, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/0036
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Detergents contain added graft copolymers which have an antiredeposition action and are obtainable by grafting polyalkylene oxides having a number average molecular weight of from 2000 to 100,000 with vinyl acetate in a weight ratio of from 1:0.2 to 1:10, and up to 15% of whose acetate groups may be hydrolyzed.