Liquid hydrocarbon compositions of improved behavior in the cold and containing diene polymers

US4015952A · kind A · utility

Assignee

• Institut Francais du Petrole des Carburants et Lubricants et Enterprise de Recherches et d'Activities Petroliers Elf · FR

Inventors

• Jean-Pierre Durand · Los Angeles, US
• Bernard Aubin · Malakoff, FR
• Francois Dawans · Bougival, FR
• Gilbert Chapelet · Bron, FR

Key dates

• Filing date: Nov 27, 1974
• Grant date: Apr 5, 1977
• Expiry date: Nov 27, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08C19/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The behavior in the cold of crude oil or petroleum distillates may be improved by incorporation of polymeric substances such as a hydrogenated polybutadiene or a hydrogenated copolymer of butadiene with at least one conjugated aliphatic diolefin of 5-8 carbon atoms. The additive is active at concentrations of from 10 to 1,000 grams per m.sup.3 of oil.