Lanxess Deutschland Gmbh

Arlanxeo Deutschland Gmbh

University of Toronto

Lanxess Corporation

Arlanxeo De Gmbh

Christopher Ong

Werner Obrecht

Oskar Nuyken

Sharon X Guo

Clinton Lund

Douglas Wade Stephan

Stephen D Pask

Martin Mezger

Dirk Achten

Hui Li

Thomas König

Julia Maria Jeschko

Julia Maria Mueller

Michael Sgro

Hans Magg

Sven Brandau

Michael Klimpel

Claus Wrana

Franz-Josef Mersmann

Matthias Soddemann

Julia Maria Müller

Lan Lu

Victor Nasreddine

Hans-Rafael Winkelbach

Adam McKinty

Dirk Schaefer

Jürgen Ismeier

Michael Boone

Franz Mersmann

Fatme Dahcheh

Renan Cariou

Kevin Kulbaba

Stephen Pask

Adam Mckinty

Sharon Guo

The present invention relates to novel Ruthenium-based complex compounds which represent viable catalysts, in particular for all sorts of metathesis reactions. Such complex compounds can be prepared by a novel, very favorable and cost efficient method which includes the introduction of an alkylidene ligand into the complex by using vinyl sulfides or vinyl ethers.

Ruthenium-based complexes, their preparation and use as catalysts

The present invention provides novel Ruthenium-based transition metal complex catalysts comprising specific ligands, their preparation and their use in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, and olefin selective.

Ruthenium-based complex catalysts

Novel transition metal complexes are provided which represent viable catalysts for a broad variety of reactions such as hydrogenation reactions and metathesis reactions. Novel preparation processes are made available via unprecedented routes inter alia not involving structures according to Grubbs I or Grubbs II catalysts.

Transition metal complexes, their preparation and use

A process of degrading nitrile rubbers comprises subjecting them to a metathesis reaction in the presence of specific catalysts with increased activity.

Process for degrading nitrile rubbers in the presence of catalysts having an increased activity

Pursuant to the invention a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the is provided wherein the process is carried out in the presence of hydrogen and optionally at least one co-(olefin). The present invention further relates to the use of specific metal compounds in a process for the production of a hydrogenated nitrile rubber by simultaneous hydrogenation and metathesis of a nitrile rubber.

Process for the preparation of low molecular weight hydrogenated nitrile rubber

The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art, wherein the process is carried out in the presence of hydrogen and optionally at least one co-olefin. The present invention further relates to the use of specific metal compounds in a process for the production of a hydrogenated nitrile rubber by simultaneous hydrogenation and metathesis of a nitrile rubber.

Process for the preparation of hydrogenated nitrile rubber

A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent and a particular crosslinking accelerator. Furtheron polymer vulcanizates on the basis of such polymer compositions as well as method for preparing such polymer vulcanizate is provided, in particular in the form of mouldings or shaped parts.

Vulcanizable polymer compositions

The present invention provides a vulcanizable composition containing a specific hydrogenated nitrile rubber, at least one cross-linking agent and carbon nanotubes, a process for preparing such composition and the use thereof for preparing vulcanizates. Said vulcanizates exhibit excellent heat performance, oil resistance and mechanical strength.

Carbon nanotube containing rubber compositions

A novel process for the metathetic degradation of nitrile rubbers is provided which uses specific transition metal complex catalysts showing an increased activity.

Metathesis of nitrile rubbers in the presence of transition metal complex catalysts

Novel optionally hydrogenated nitrile rubbers distinguised by a very low ruthenium content are provided as well as a process for the removal of ruthenium-containing catalyst residues from a solution of optionally hydrogenated nitrile rubber by using specific functionalized ion-exchange resins.

Process for removing ruthenium-containing catalyst residues from optionally hydrogenated nitrile rubber

The present invention provides a novel process for preparing hydrogenated nitrile rubbers comprising subjecting nitrile rubbers in a spinning disk reactor to hydrogenation. The present process is less demanding with regard to its reaction conditions, like e.g. the hydrogen pressure to be applied, compared to known processes and significantly reduces the cost of the hydrogenation process and in particular the equipment cost.

Process for preparing hydrogenated nitrile rubbers

The present invention relates to thermoplastic vulcanizates (TPVs) based on low Mooney, optionally hydrogenated nitrile butadiene rubber and polyamides. The present invention also relates to TPVs based on low Mooney, optionally, hydrogenated nitrile terpolymers and polyamides. TPVs prepared according to the present invention have improved morphology, smaller rubber particle size, and improved processability compared to TPVs containing non-low Mooney, optionally hydrogenated nitrile butadiene rubber.

Low mooney nitrile rubber thermoplastic elastomer composition with improved processability

Novel crosslinkable compositions based on elastomers, at least one of which has carboxyl and/or carboxylate groups, are provided, these crosslinkable compositions containing special unsaturated organic salts of metal ions and a crosslinking system which acts as a free radical donor. Crosslinked elastomers which have excellent physical properties are obtainable therefrom. The novel crosslinkable compositions have a wide range of uses.

Crosslinkable compositions, processes for the preparation thereof and the use thereof

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Orange, TX, United States of America

Christopher Ong