Copolymers of ethylenically unsaturated carboxylic acid esters with polyoxyalkylene ethers of lower, unsaturated alcohols as flow-improving agents for paraffin containing oils

US5718821A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Matthias Krull · Harxheim, DE
• Sigmar-Peter von Halasz · Kelkheim, DE
• Werner Reimann · Frankfurt, DE
• Juliane Balzer · Frankfurt am Main, DE
• Horst Geiss · Burgau, DE

Key dates

• Filing date: Mar 20, 1997
• Grant date: Feb 17, 1998
• Expiry date: Mar 20, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2209/109
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to novel copolymers of ethylenically unsaturated carboxylic acid esters with polyoxyalkylene ethers of lower, unsaturated alcohols, their preparation, their use as flow-improving agents for paraffin-containing oils, and oils which contain such copolymers. The invention also relates to the use of known copolymers of ethylenically unsaturated carboxylic acid esters with polyoxyalkylene ethers of allyl and/or methallyl alcohol as flow-improving agents for paraffin-containing oils.