Evonik Operations Gmbh

Clariant International Ltd

Evonik Oil Additives Gmbh

Stefan Maier

Stefan Hilf

Frank-Olaf Mähling

Katrin Schöller

Klaus Schimossek

Fabian Ziegler

Sarah Lippert

Jens Elsner

Christiane Zatocil

Peter Altenbuchner

Emily Clare SCHWEIßINGER

Sofia Sirak

Michael Neusius

Gabriela Fedor

Holger Pletsch

Sebastian Babik

Yvonne Groß-Onnebrink

Sebastian Werner

Thomas Schimmel

Jennifer Holtzinger

Qi Xiao

Rene Eckert

Maria Stimeier

Emily Clare Schweiβinger

Katja Nothdurft

Denise Kleinschmidt

Dieter Janßen

Stephan J Reitmeier

Ebbe Juul Diekmann

Michael Alibert

Jürgen Gebhardt

Ronny Sondjaja

Robert Kolb

Frank Lauterwasser

Frank-Olaf Mahling

A method for the preparation of homo- and copolymers of alkyl (meth)acrylates having a low residual monomer content involves preparing a reaction mixture containing monomers, charging the reaction mixture, heating the reaction mixture, adding an additional monomer after initial monomer conversion, and optional further processing of the reaction mixture. The homo- and copolymers of alkyl (meth)acrylates obtained by this method as useful in lubricant applications.

Process for preparing homo- and copolymers of alkyl (meth)acrylates with low residual monomer content

Disclosed is a process whereby completed catalysts can be produced from the iron oxides, and these catalysts can be activated and employed directly after activation for ammonia synthesis from synthesis gas, comprising for example a mixture of nitrogen and hydrogen. A process is also disclosed to produce pre-reduced catalyst precursors, which are first reduced under controlled conditions and subsequently passivated in an oxidizing atmosphere, before they are used in ammonia synthesis as catalysts. These pre-reduced catalysts can be activated significantly more quickly and under milder conditions than the iron oxides.

Process for producing catalysts for ammonia synthesis by reducing iron oxides

A polyester is useful as a high viscosity base fluid. A method for its preparation involves isomerizing an alpha-olefin, epoxidizing an internal olefin, reacting an internal epoxide, and isolating the polyester. Lubricant compositions can contain such polyesters and the compositions are useful as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or as hydraulic oils.

High viscosity base fluids based on oil compatible polyesters

A polyester is useful as a high viscosity base fluid. A method for its preparation involves epoxidizing an alpha-olefin, reacting the alpha-epoxide or diol with a saturated linear aliphatic dicarboxylic acid, and isolating the polyester. Lubricant compositions can contain such polyesters and the compositions are useful as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or as hydraulic oils.

High viscosity base fluids based on oil compatible polyesters prepared from long-chain epoxides

Acrylate-olefin copolymers and a method for the preparation of these copolymers are provided. Lubricant compositions can contain the aforementioned copolymers. The copolymers are useful as a lubricant additive or a synthetic base fluid in a lubricating oil composition, preferably in a gear oil composition, a transmission oil composition, a hydraulic oil composition, an engine oil composition, a marine oil composition, an industrial lubricating oil composition or in grease.

Acrylate-olefin copolymers as high viscosity base fluids

Low molecular weight polyalkyl acrylate polymers can be used as high viscosity base fluids. A corresponding method can be used for their preparation. Lubricant compositions may contain such low molecular weight polyalkyl acrylate polymers and the compositions may be used as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or hydraulic oils.

High viscosity polyacrylate base fluids

A dismountable and dismantlable loading system for loading a reactor with bulk material, is described. The dismantlable rail system with a multiplicity of rail segments can be connected to one another to form a self-contained rail system, wherein the individual rail segments have the ability to connect the rail segments to one another. Also provided is at least one rail vehicle for operation on the rail system, having a holding device for containers for receiving the bulk material, and at least one filling station for receiving the bulk material, having a hose present in the floor of the filling station for transporting the bulk material into various areas of the reactor.

Loading system for loading a reactor with bulk material, which system can be disassembled and dismantled

A comb polymer can be used for reducing a Noack evaporation loss of a lubricant composition, especially of an engine oil composition. Application of the comb polymer to the lubricant composition can bring about the desired reduction. The comb polymer can include specified amounts of macromonomer and alkyl acrylates. Resulting lubricant compositions can include the comb polymer.

Comb polymers for improving Noack evaporation loss of engine oil formulations

Polyalkyl(meth)acrylate (PAMA) polymers comprising a certain amount of hydroxyl-functionalized alkyl (meth)acrylates can be used for improving the demulsibility performance of high VI lubricating oil compositions. The lubricating oil compositions can be those which are based on apolar base oils, especially hydraulic fluid compositions. The polymers can be comprised in certain lubricating oil compositions.

Functional polyalkyl (meth)acrylates with enhanced demulsibility performance

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Mainz, Germany

Stefan Maier