Evonik Operations Gmbh

Yvonne Groß-Onnebrink

Jürgen Herwig

Miriam Ammer

Kai-Steffen Krannig

Andreas Berlineanu

Margit Bukohl

Kirsten Luce

Philip Kemper

Siegfried Jittenmeier

Alexander Pschantka

Gudula Beuers

Stefan Maier

Stefan Hilf

Holger Pletsch

Sebastian Babik

Emily Clare SCHWEIßINGER

Katja Nothdurft

Dieter Janßen

Denise Kleinschmidt

Stefan Karl Maier

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

The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.

Polybutadiene, production and use thereof

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Raesfeld, Germany

Yvonne Groß-Onnebrink