Process for improving the flow properties of mineral oils

US4556499A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Karl Heinz Heier · Frankfurt am Main, DE
• Roland Bohm · Altenberge, DE
• John Hobes · Dinslaken, DE

Key dates

• Filing date: Dec 8, 1983
• Grant date: Dec 3, 1985
• Expiry date: Dec 8, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2468
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for improving the flow properties of mineral oils by adding a copolymer consisting of from 66 to 99.9 weight % of ethylene and of from 0.1 to 40 weight % of vinylic acid amide and optionally of further comonomers.