Evonik Degussa Gmbh

Evonik Oil Additives Gmbh

Evonik Rohmax Additives Gmbh

Evonik Operations Gmbh

Rene Koschabek

Gabriele Brenner

Thorsten Brand

Markus Weber

Burkhard Standke

Sven Balk

Torsten Stoehr

Emmanouil Spyrou

Martin Bartmann

Roland Edelmann

Cornelia Borgmann

Brian J Hess

Gerd Loehden

Christian Wassmer

Frank-Olaf Maehling

Frank-Olaf Mähling

Wolfgang Tschepat

Christoph Wincierz

Ronny Sondjaja

Thorsten Bartels

Robert Cybert

Jane Benito

Andre Unglert

Sandra Kuenzel

Georg Becker

Jian Mike Liu

Torsten Stöhr

Marie A Malitsky

Sandra KÜNZEL

The present invention describes a composition comprising at least one polyalkyl(meth)acrylate polymer having a number average molecular weight Mn of from 1000 to 10000 g/mol and a polydispersity Mw/Mn of from 1 to 8 and at least one ethylene vinyl acetate copolymer comprising units being derived from at least one alkyl (meth)acrylate having 1 to 30 carbon atoms in the alkyl residue. The composition is useful as cold flow improver in fossil fuel oil and or biodiesel fuel oil.

Composition to improve cold flow properties of fuel oils

The present invention relates to a lubricant composition for a process for reducing the paraffin content of mineral oil compositions, by providing a mineral oil composition with a dewaxing aid, cooling to form a paraffin precipitate and at least partly removing the paraffin precipitate formed. The dewaxing aid used is a copolymer mixture comprising at least three copolymers, the copolymers differing in the composition of the repeat units.

Method for dewaxing mineral oil compositions

The invention relates to a (meth)acrylate polymer for improving the viscosity index, which comprises a) from 5 to 60 wt % of repeating units that are derived from (meth)acrylates of formula (I), where R represents hydrogen or methyl and R1 is an alkyl radical having from 1 to 6 carbon atoms, b) from 5 to 80 wt % of repeating units that are derived from (meth)acrylates of formula (II), where R is hydrogen or methyl and R2 is an alkyl radical having from 7 to 30 carbon atoms, and c) from 15 to 90 wt % of repeating units that are derived from (meth)acrylates of formula (III), where R is hydrogen or methyl, n is an integer in the range of 2 to 500 and A is C2-C4 alkylene and R3 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms. The invention further relates to novel lubricating oil compositions, to a method for producing the above-mentioned (meth)acrylate polymers and to the use thereof for improving the viscosity index of lubricating oil compositions that comprise at least one polar base oil.

(Meth)acrylate polymers for improving the viscosity index

The present invention relates to a process for preparing poly(meth)acrylate-graft-polylactone polyols.

Process for preparing poly(meth)acrylate-graft-polylactone polymers

The present invention relates to the use of oligomeric siloxane components in radiation-curable formulations which in the cured state offer a particular degree of corrosion control for metallic substrates.

Radiation-curable formulations

The present invention relates to the use of mixtures comprising polymer types A, B and AB as or in adhesives, polymer type A being a copolyester prepared with cocondensation of unsaturated aliphatic dicarboxylic acids, polymer type B being a (meth)acrylate homopolymer and/or copolymer, and polymer type AB being a graft copolymer of polymer type A and polymer type B.

Adhesives based on polyester-graft-poly(meth)acrylate copolymers

The present invention relates to a preparation comprising at least one specific oligomeric siloxane component and at least one polymer component, to processes for producing it and to its use in formulations, more particularly metal coating formulations.

Inorganically modified polyester binder preparation, process for production and use thereof

A description is given of the preparation of high molecular mass, crystalline copolyesters with high solubility in non-halogenated and non-aromatic solvents, and of their use in adhesives.

Crystalline copolymers having high solubility in non-halogenated solvents, and their use

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Weinheim, Germany

Rene Koschabek