Momentive Performance Materials Gmbh

Princeton University

Union Carbide Corporation

Osi Specialties, Inc.

General Electric Company

Cornell University

Witco Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Ck Witco Corporation

Union Carbide Corporation and Plastics Company Inc.

Kenrick M Lewis

Paul J Chirik

Johannes G P Delis

Susan Adams Nye

Keith James Weller

Aroop Kumar Roy

Hua Yu

Anubhav Saxena

Chi-Lin O'Young

Julie Boyer

Abellard T Mereigh

Tianning Diao

Sabrina R Cromer

Regina Nelson Eng

Shreedhar Bhat

Aaron M Tondreau

Bernard Kanner

Thomas E Childress

Frank Dominic Mendicino

John D Neely

Renyuan Yu

Rudolph A Cameron

Senthilkumar Umapathy

Eric Raymond Pohl

Yi-Feng Wang

Kendall L Guyer

Andrea Trotto

Rudolph Cameron

Crisita Carmen Hojilla Atienza

Richard W Cruse

Hua Wang

John S Razzano

Jitendra Singh Rathore

Norbert Auner

James S Ritscher

Anne Dussaud

Ching-Feng Chang

Monjit Phukan

Paul E Austin

Sandeep Naik

Alok Sarkar

Nan S Chu

Wen Liao

Vivek Khare

Thorsten Felder

Abirami Srikanth

David Jenkins

Alexander G Sturm

William E Crane

Umapathy Senthilkumar

Tobias Santowski

Bhavna Rana

Ronald Wagner

Yanjun Zhu

Srinivas Komati

Sebastiano Magri

Regina N Eng

Jeffrey M Larnerd

Eugene C Ward

Cristia Carmen Hojilla Atienza

Sarah Kathleen Russell

Sentihilkumar Umapathy

Crista Carmen H Atienza

Juergen Koller

Giuseppe D'Agostino

Crisita Carmen H Atienza

Weihong Lang

Umpathy Senthilkumar

Christopher Schuster

Karen Ritscher, Legal Representative

Chin-Lin O'Young

Sandeep Shashikant Naik

Wen P Lio

Sue Nye

Johannes GP Delis

Alok Sakar

Rudy A Cameron

The present invention relates to an integrated process for the manufacture of methylchlorohydridomonosilanes in particular, from products of the M&#xfc;ller-Rochow Direct Process.

Integrated process for the manufacture of methylchlorohydridomonosilanes

Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.

Non-precious metal-based hyrdosilylation catalysts exhibiting improved selectivity

A process for producing a silylated product comprises reacting a mixture comprising (a) an unsaturated compound containing at least one unsaturated functional group, (b) a silyl hydride containing at least one silylhydride functional group, and (c) a catalyst, optionally in the presence of a solvent, to produce a dehydrogenative silylated product, a hydrosilylated product, or a combination of a dehydrogenative silylated product and a hydrosilylated product, wherein the catalyst is chosen from a pyridine diimine cobalt dicarboxylate complex or a cobalt carboxylate compound, and the process is conducted without pre-activating the catalyst via a reducing agent and/or without an initiator or promoter compound. The present catalysts have been found to be active in the presence of the silyl hydride employed in the silylation reaction.

Dehydrogenative silylation, hydrosilylation and crosslinking using pyridinediimine cobalt carboxylate catalysts

A hair fiber strengthening composition includes an aqueous vehicle containing as a hair strengthening additive a source of metal cations having a valence of 2 or 3 and anions derived from an oxidized carbohydrate, an inorganic acid and/or an organic acid, the composition having a pH of from about 6 to about 11.

Composition and method for strengthening hair fiber

There is provided novel mono-acrylate functionalized siloxane monomer containing carbosiloxane linkage for improved hydrolysis resistance. This invention also provides copolymers produced using these monomers and their use in various applications.

Organomodified carbosiloxane monomers containing compositions and uses thereof

A water soluble silicone macromer comprising a siloxane backbone having grafted thereto a suitable number of hydrophilic groups to render the macromer water soluble, the macromer comprising a polymerizable functional group grafted to the siloxane backbone. In one aspect, the present invention provides a water soluble silicone macromer having a structure of Formula (1): where M is a hydrophilic group or segment; L is a hydrophilic or hydrophobic linkage; N is a hydrophilic or hydrophobic group or segment. Q is a polymerizable functional group; x is zero or an integer greater than zero; y is zero or an integer greater than zero; v is zero or an integer greater than zero; and z is greater than zero, with the proviso that both y and v are not zero.

Water soluble silicone material

A composition, suitable for use in producing hydrogel polymer films from which biomedical devices such as contact lenses can be made, comprising at least one hydrophilic silicone macromer. In one aspect, a hydrophilic silicone macromer is of the Formula 1:X&#x2014;Si(R)(R)O&#x2014;(Si(R)(R)O)&#x2014;Si(R)(R)&#x2014;Y&#x2003;&#x2003;(1)wherein R, R, RR, Rand Rare independently selected from a monovalent linear, branched, or cyclic radical with 1 to 50 carbon atoms, that can optionally contain a heteroatom or I; I is R&#x2014;R; Y is a free radical polymerization-effective hydrophilic group with the general structure: R&#x2014;R&#x2014;Z; Ris a linking residue from a non-isomerizable hydrosilylation effective terminal olefin comprising the general structure &#x2014;CH&#x2014;C(RR)&#x2014;(CRR), the subscript n is selected from integers from 1 to 10; R, R, and Rcan be selected from hydrogen and a mono-valent hydrocarbon radical with 1 to 10 carbon atoms that optionally contain a heteroatom; Ris selected from a monovalent hydrocarbon radical with 1 to 6 carbon atoms; Ris a spacer group comprising a diavelant hydrophilic organic radical with 0 to 100 carbon atoms and optionally contains heteroatoms, and X is a free radical polymerizable group. The said composition can be polymers and films suitable for use in making contact lenses.

Hydrophilic macromers and hydrogels comprising the same

A heterogeneous catalyst comprising a metal-containing polymer matrix covalently bonded to a support material and a method of making and using such catalysts. The metal-containing polymer matrix comprises metal nano-particles encapsulated in a polymer matrix, e.g., a siloxane. In one aspect, the metal-containing polymer matrix can be bonded to the support material via a hydrophobic group attached to the support material. The catalyst can be recovered after being used in a metal catalyzed reaction and exhibit excellent catalytic activity upon reuse in subsequent reactions.

High activity catalyst for hydrosilylation reactions and methods of making the same

This invention is directed to a process for producing a haloorganoalkoxysilane product comprising reacting an olefinic halide, an alkoxysilane, a catalytically effective amount of ruthenium-containing catalyst; and a reaction-promoting effective amount of a peroxy compound, optionally in the presence of an electron-deficient aromatic compound.

Hydrosilylation synthesis of haloalkylorganosilanes using peroxide promoters

The present invention relates to a fast curing compositions comprising a (meth)acrylamide functionalized hydrophilic silicone monomers having a polyether moiety containing a branched linking group. In one embodiment, such compositions are useful for preparing water-absorbing silicone-hydrogel films for contact lens applications. In one embodiment, the (meth)acrylamide monomers disclosed here have a branched linking group on the polyether moiety which makes it possible to produce hydrophilic polyether modified silicone copolymers without the need to separate various by-products including, but not limited to, unreacted, isomerized polyether and associated high molecular weight by-products.

Hydrophilic silicone monomers, process for preparation thereof and thin films containing the same

There is provided a fast curing composition comprising an alpha, beta-unsaturated amido-containing organosilicon compound, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for hydrogels made from the alpha, beta-unsaturated amido-containing organosilicon compound described herein.

Polymerizable amido-containing organosilicon compounds, silicon-containing polymers and biomedical devices therefrom

Disclosed herein are cobalt complexes containing terdentate pyridine di-imine ligands and their use as efficient, reusable, and selective dehydrogenative silylation, crosslinking, and tandem dehydrogenative silylation-hydrogenation catalysts.

Reusable homogeneous cobalt pyridine diimine catalysts for dehydrogenative silylation and tandem dehydrogenative-silylation-hydrogenation

A process for the hydrosilylation of an unsaturated compound comprising reacting (a) a silyl hydride with (b) an unsaturated compound in the presence of (c) a platinum compound and (d) a cyclodiene, with the provisos that (i) when the unsaturated compound is a terminal alkyne, the silyl hydride is other than a halosilane, and (ii) when the platinum compound is a Pt(II)-based compound, the ratio of total moles of cyclodiene to moles of platinum is less than 3:1.

Platinum catalyzed hydrosilylation reactions utilizing cyclodiene additives

Disclosed herein are cobalt complexes containing pyridine di-imine ligands and chelating alkenyl-modified silyl ligands, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation.

Cobalt catalysts and their use for hydrosilylation and dehydrogenative silylation

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Rego Park, NY, United States of America

Kenrick M Lewis