Symyx Technologies, Inc.

Rhodia Chimie

Symyx Solutions, Inc.

Oliver Brümmer

Gary Michael Diamond

Anne Marie Lapointe

Margarete K Leclerc

James A W Shoemaker

Christopher Goh

Thomas R Boussie

James M Longmire

Eric D Carlson

Sébastien Sterin

Yves Giraud

Xiaohong Bei

Pu Sun

Thomas Crevier

Cynthia Lee Micklatcher

Margaret K Leclerc

Anne M Lapointe

Anne-Marie La Pointe

James A Shoemaker

New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom

This invention relates to silicone compositions which can be crosslinked, preferably into elastomers, by hydrosilylation of at least one PolyOrganoSiloxane -A- carrying unsaturated bonds, using at least one polyorganohydrosiloxane &#x2014;B&#x2014; in the presence of a carbene-based metal catalyst &#x2014;C&#x2014; as defined in the description and which optionally comprises at least one inhibitor -D- of the hydrosilylation reaction.

Silicone composition which can be crosslinked into an elastomer by hydrosilylation in the presence of carbene-based metal catalysts, and catalysts of this type

Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

Bridged bi-aromatic catalysts, complexes, and methods of using the same

Metal-ligand complexes that are useful as precursors to catalysts for the polymerization of olefins are provided. Certain of the catalysts are particularly effective at polymerizing ethylene and styrene into copolymers having novel properties, including a low molecular weight and close comparison between vinyl and methyl end groups.

Styrene polymers and phenol-triazole type complexes, catalysts, and processes for polymerizing

Ethylene-styrene copolymers and phenol-triazole type complexes, catalysts, and processes for polymerizing

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Berlin, Germany

Oliver Brümmer