Basf Se Corporation

Rohmax Additives Gmbh

Cognis IP Management Gmbh

Evonik Rohmax Additives Gmbh

Evonik Oil Additives Gmbh

Markus Scherer

Rene Koschabek

Boris Breitscheidel

Michael Mueller

Joseph M Bollinger

Jan Strittmatter

Ivette Garcia Castro

Wolfgang Grabarse

Alexander Dardin

Klaus Hedrich

Karolin Monz

Boris Eisenberg

Uwe Held

Frank Rittig

Martin Wendker

Philippe Rabbat

Karolin Geyer

Thomas Mausberg

Ronald Klagge

Thomas Schliwka

Wolfgang Tschepat

Muriel Ecormier

Matthias Fischer

Katharina Hömberg

Roland Schweder

Dirk Rettemeyer

Sebastian Roos

Stephan Massoth

Joan Marie Souchik

Thomas Weiss

Markus Hansch

Ludwig Schieferstein

Nawid Kashani-Shirazi

Torsten Stoehr

Stéphanie Merlet

Stefan Busch

Thomas Weiβ

Harald Frommelius

Bernard Kinker

Claudia Fischer

Dieter Janssen

Martin Alexander Bohn

Qinggao Ma

Henrik Heinemann

Nawid Kashani

Ronny Rinklieb

Peter Bene

Melanie Croessmann

Arjun K Goyal

Edda Bergmann

William Lamarca

Detlef Bloos

Sascha Oestreich

David J Cooper, Jr

Miriam Becherer

Michael Müller

Michael Alibert

Jean-Luc Herbeaux

Francois Acker

Bernd Amrhein

Valerie Dittgen

Alain Roos

Jean-Marc Beiner

Alexandra Pauker

Wolfang Tschepat

Robert Woodruff

Larry Stephen Tillery

Joan Souchik

Dardin Alexander

Arjun Goyal

Alexndra Pauker

Rudolf Iking

Vasu Bala

Jürgen RÖDER

Joseph Martin Bollinger

François Acker

Valérie Dittgen

A gear oil composition that has a kinematic viscosity at 40° C. in the range of ≥68 to ≤1000 csdt when measured in accordance with ASTM D445 can be made. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.

Gear oil composition

The presently claimed invention relates to a gear oil composition having a kinematic viscosity at 40° C. in the range of ≥68 to ≤1000 cSt when measured in accordance with ASTM D445. The gear oil composition is useful as a lubricant in a gear box, especially in a wind turbine gear box.

The invention relates to a lubricant comprising a diester of adipic acid with a tridecanol mixture which comprises 20 to 60% of at least triply branched tridecanols, 10 to 50% doubly branched tridecanols, and 5 to 30% singly branched and/or linear tridecanols, and where the percentages are determined by gas chromatography.

Lubricant comprising a diester of adipic acid with a tridecanol

Lubricants with a terpolymer made of diester, olefin and acrylate The invention relates to a lubricant comprising a terpolymer which comprises in polymerized forma diester selected from di(C-Calkyl)ester of maleic acid, fumaric acid, 2-methylmaleic acid, 2,3-dimethylmaleic acid, 2-methylfumaric acid, 2,3-dimethylfumaric acid, or mixtures thereof, an olefin selected from C-Calky-1-ene, and an acrylate selected from C-Calkyl (meth)acrylate. The invention further relates to the terpolymer, a process for preparing the terpolymer comprising the step of polymerizing the diester, the olefin, and the acrylate; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the terpolymer.

Lubricants with a terpolymer made of diester, olefin and acrylate

The present invention relates to a continuous high-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C-Calkyl (meth)acrylate, where a monomer feed comprising the ethylene and the acrylate is polymerized in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to the liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

High-pressure polymerization process for liquid ethylene copolymers

The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

Lubricant comprising a liquid ethylene copolymer

The presently claimed invention is directed to novel polyesters which are obtainable by reacting a mixture comprising at least one C8-C20 Guerbet alcohol, at least one aliphatic or cycloaliphatic dicarboxylic acid and at least one polyol with a hydroxyl functionality in the range of &#x2265;2 to &#x2264;6 and the use of these polyesters as a component of lubricating oil compositions.

Polyester and use of polyester in lubricants

The presently claimed invention is directed to the novel use of polyester obtainable by reacting a mixture comprising adipic acid and an alcohol mixture comprising 1-nonanol, monomethyloctanols, dimethylheptanols and monoethylheptanols as lubricants and a lubricant composition comprising these polyesters.

Use of polyesters as lubricants

Lubricating oil compositions comprise one or more polytetrahydrofuranes that are prepared by alkoxylating polytetrahydrofurane with at least one C8-C30 epoxy alkane.

Use of polytetrahydrofuranes in lubricating oil compositions

A method for reducing the friction coefficient of a lubricating oil composition in the lubrication of a mechanical device comprises formulating said lubricating oil composition with a carboxylic acid ester obtainable by reacting a mixture comprising at least on dicarboxylic acid and at least one branched Calcohol.

Lubricating oil composition with enhanced energy efficiency

The presently claimed invention is directed to the use of carboxylic acid esters which are obtained by reacting aliphatic dicarboxylic acids and a mixture of structurally different monoalcohols having 10 carbon atoms as lubricants and a process for their preparation.

Use of carboxylic acid esters as lubricants

The invention relates to esters, the acid component of which is a monocarboxylic acid having 8 to 12 C atoms and the alcohol component of which is selected from the group of the pentanols, wherein said esters are excellently suited as coalescing agents.

Use of esters as coalescing agents

The invention relates to the use of graft polymers obtained by polymerization in two stages. In a first stage, at least one graft basis is produced by radically polymerizing a monomer composition A) containing 0 to 40 percent by weight of one or several ethylenically unsaturated ester compounds of formula (I), wherein R represents hydrogen or methyl, Rrepresents a linear or branched alkyl radical comprising 1 to 5 carbon atoms, Rand Rindependently represent hydrogen or a group of formula &#x2014;COOR', wherein R&#x2032; represents hydrogen or an alkyl group comprising 1 to 5 carbon atoms, 60 to 100 percent by weight of one or several ethylenically unsaturated ester compounds of formula (II), wherein R represents hydrogen or methyl, Rrepresents a linear or branched alkyl radical comprising 6 to 40 carbon atoms, Rand Rindependently represent hydrogen or a group of formula &#x2014;COOR&#x2032;, wherein R&#x2032; represents hydrogen or an alkyl group comprising 6 to 40 carbon atoms, and 0 to 40 percent by weight of comonomers, the percentages being relative to the weight of monomer composition A). In a second stage, a monomer composition B) containing 20 to 100 percent by weight of at least one monomer that comprises at least one nitrogen-containing group is grafted onto the graft basis in order to reduce wear in lubricant oil compositions. Said graft polymer comprises a maximum of 200 ppm of sulfur while the weight ratio between monomer composition A) and monomer composition B) ranges between 99.7:0.3 and 80:20.

Use of graft polymers

Suggested is a method for enhancing energy efficiency of engines by applying to said engines a lubricant composition containing (A) carboxylic esters derived from the reaction of mono-, di- and/or poly alcohols with mono- and/or dicarboxylic acids, together with an additive blend (B) comprising at least two different additives (a) and (b) together, whereby compound (a) is selected from dithiophosphates, and compound (b) is selected from alkylated phosphorothionates, on condition that the total amount of the additive blend (B) is below 0.1 wt %, calculated on the weight of the whole composition.

Lubricant compositions

A process for improving the oxidation stability of lubricants including providing one or more esters containing branched alkyl groups which are reaction products of branched alcohols with a) one or more aliphatic dicarboxylic acids corresponding to general formula (II): HOOC&#x2014;R&#x2014;COOH in which Ris a branched or unbranched, saturated alkyl group containing 0 to 34 carbon atoms, or b) one or more saturated branched monocarboxylic acids corresponding to general formula (III): R&#x2014;COOH in which Ris a branched alkyl group of 3 to 39 carbon atoms, or c) one or more saturated monocarboxylic acids corresponding to general formula (III) in which Ris a linear alkyl group of 3 to 29 carbon atoms, or d) a mixture thereof, as lubricants, with the proviso that the esters have an oxidation stability of 1000 hours or more, as determined by the Turbine Oil Stability Test (TOST test) to DIN EN ISO 4263-3.

Esters comprising branched alkyl groups as lubricants

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Cologne, Germany

Markus Scherer