New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils

US5349019A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Herbert Wirtz · Eppstein, DE
• Sigmar-Peter von Halasz · Kelkheim, DE
• Michael Feustel · Kelkheim, DE
• Juliane Balzer · Frankfurt am Main, DE

Key dates

• Filing date: Sep 2, 1993
• Grant date: Sep 20, 1994
• Expiry date: Sep 2, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2368
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils. Copolymers comprising as comonomers therein from 50 to 99.9% by weight of a C.sub.14 -C.sub.22 -alkyl(meth)acrylate and 50 to 0.1% by weight of a comonomer derived from a compound comprising a single polymerizable C.dbd.C group and these copolymers or their mixture with C.sub.14 -C.sub.22 -alkyl poly(meth)acrylates having enhanced pour point depressant properties.