Use of graft polymers based on polyesters, polyester urethanes and polyester amides as grayness inhibitors in detergents

US4849126A · kind A · utility

Assignee

• BASF SE

Inventors

• Alexander Kud · Eppelsheim, DE
• Wolfgang Trieselt · Ludwigshafen, DE
• Heinrich Hartmann · Schifferstadt, DE

Key dates

• Filing date: Apr 8, 1988
• Grant date: Jul 18, 1989
• Expiry date: Apr 8, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3788
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Detergents contain graft polymers obtainable by grafting PA1 (a) polycondensates based on polyesters, polyester urethanes and polyester amides and having in each case a number average molecular weight from 500 to 100,000 with PA1 (b) from 0.2 to 10 parts by weight, based on 1 part by weight of the polycondensates, of vinyl esters of saturated C.sub.1 - to C.sub.6 -carboxylic acids, acrylic and/or methacrylic esters of saturated monohydric alcohols containing 1 to 4 carbon atoms.