Thickening systems for high water based functional fluids and the high water based functional fluids containing these thickening systems

US4770804A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl-Heinz Hentschel · Krefeld, DE
• Christian Rasp · Cologne, DE
• Siegfried Kussi · Leverkusen, DE
• Udo-Winfried Hendricks · Odenthal, DE

Key dates

• Filing date: Aug 25, 1986
• Grant date: Sep 13, 1988
• Expiry date: Aug 25, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2050/01
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to the use of combinations of water-soluble polymeric polyether polyols, in which at least 50% of the terminal hydroxyl groups are blocked by reaction with a monoisocyanate incorporating a long-chain aliphatic hydrocarbon radical, and certain surfactants as thickener systems for high water based functional fluids and to the thickened high water based functional fluids.