Basf Aktiengesellschaft

Basf Se Corporation

Anke Oswald

Birgit Potthoff-Karl

Pia Baum

Christine Mueller

Ivette Garcia Castro

Dieter Faul

Irene Troetsch-Schaller

Uwe Rebholz

Michael Schroers

The present invention relates to a copolymer obtainable by copolymerization of (A) at least one unsaturated dicarboxylic acid or derivatives thereof, (B) at least one &#x3b1;-olefin having from at least 6 up to and including 20 carbon atoms, (C) optionally at least one C- to C-alkyl ester of acrylic acid or methacrylic acid or a mixture of such alkyl esters and (D) optionally one or more further copolymerizable monomers other than monomers (A), (B) and (C), with a molar incorporation ratio of (A):(B):(C):(D) of 1:0.5 to 2.0:0 to less than 0.5:0 to 0.1 followed by the reaction with at least one dialkylamine (E), where the two alkyl radicals in the at least one dialkylamine (E) are independently alkyl radicals having at least 17 up to 30 carbon atoms.

Copolymer and use thereof for reducing crystallization of paraffin crystals in fuels

Graft polymers comprising side chains containing cyclic N-vinylamides

Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.

Graft polymer with sidechains comprising nitrogen heterocycles

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Boehl-Iggelheim, Germany

Anke Oswald