Highly dilatant polymer dispersions with reduced temperature dependence of the critical shearing rate

US4654396A · kind A · utility

Assignee

• BASF SE

Inventors

• Richard Bung · Ludwigshafen, DE
• Klaus Haas · Ludwigshafen, DE
• Martin Laun · Mannheim, DE
• Franz Schmidt · Mannheim, DE
• Gerhard Welzel · Mannheim, DE

Key dates

• Filing date: Sep 9, 1985
• Grant date: Mar 31, 1987
• Expiry date: Sep 9, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2357/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A dispersion, having highly dilatant flow, of a carboxyl-containing copolymer of monoolefinically unsaturated monomers, wherein the temperature dependence of the critical shearing rate is greatly reduced by incorporation of from 0.1 to 30% by weight of oxides, hydroxides, carbonates and/or water soluble salts of monovalent or divalent metals.