Highly dilatant copolymer dispersion having high continuous-load stability

US5037880A · kind A · utility

Assignee

• BASF SE

Inventors

• Franz Schmidt · Mannheim, DE
• Richard Bung · Ludwigshafen, DE
• Martin Laun · Mannheim, DE
• Gerd Louis · Eisenberg (Pfalz), DE

Key dates

• Filing date: May 9, 1990
• Grant date: Aug 6, 1991
• Expiry date: May 9, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F246/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A highly dilatant copolymer dispersion containing, as essential components, an emulsion copolymer prepared from 1 to 10% by weight, based on the sum of the monomers employed, of .alpha.,.beta.-monoolefinically unsaturated carboxylic acids and other olefinically unsaturated monomers, in which the emulsion copolymer is prepared in the presence of from 5 to 30% by weight, based on the sum of the monomers employed, of allyl carboxylate or alkylallyl carboxylate containing 2 or more copolymerizable olefinic double bonds, or a mixture thereof, the alkyl radical containing 1 to 4 C atoms, and the preparation thereof.