Polymeric compositions composed of ethylene-vinyl ester copolymers alkyl (meth)acrylates, processes for production thereof and use thereof as pour point depressants for crude oils, mineral oils or mineral oil products

US9574146B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Ivette Garcia Castro · Ludwigshafen, DE
• Kai Gumlich · Mannheim, DE
• Stefan Frenzel · Weinheim, DE
• Maria Heuken · Schwarzheide, DE
• Rouven Konrad · Mörstadt, DE
• Karin Neubecker · Bischofswerda, DE

Key dates

• Filing date: Dec 17, 2013
• Grant date: Feb 21, 2017
• Expiry date: Dec 18, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2030/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Polymeric compositions obtainable by free-radical polymerization of at least two different alkyl (meth)acrylates in the presence of at least one ethylene-vinyl ester copolymer, the alkyl (meth)acrylates used being a mixture comprising alkyl (meth)acrylates having linear C12- to C60-alkyl radicals and different alkyl (meth)acrylates having linear C1- to C11-alkyl radicals and/or branched C4- to C60-alkyl radicals and/or cyclic C5- to C20-alkyl radicals. The use of such polymeric compositions as pour point depressants for crude oils, mineral oils or mineral oil products.