Copolymers based on long-chain unsaturated esters and ethylenically unsaturated carboxylic acids for making leather and furs water repellent

US5124181A · kind A · utility

Assignee

• BASF SE

Inventors

• Ortwin Schaffer · Ludwigshafen, DE
• Herbert Bay · Reutlingen, DE
• Karl Stork · Eisenberg (Pfalz), DE
• Norbert Greif · Worms, DE
• Knut Oppenlaender · Ludwigshafen, DE
• Walter Denzinger · Speyer, DE
• Heinrich Hartmann · Schifferstadt, DE

Key dates

• Filing date: Sep 14, 1990
• Grant date: Jun 23, 1992
• Expiry date: Sep 14, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14C9/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Copolymers which contain PA0 a) from 50 to 90% by weight of C.sub.8 -C.sub.40 -alkyl methacrylates, vinyl esters of C.sub.8 -C.sub.40 -carboxylic acids or mixtures thereof and PA0 b) from 10 to 50% by weight of monoethylenically unsaturated C.sub.3 -C.sub.12 -carboxylic acids, monoethylenically unsaturated dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids, amides of C.sub.3 -C.sub.12 -monocarboxylic acids or mixtures thereof as copolymerized units and have molecular masses of from 500 to 30,000 are used in at least partially neutralized form in aqueous solution or dispersion for making leather and furs water repellent.