Dow Corning Corporation

Other

Shizhong Zhang

William James Schulz, Jr

Russell Keith King

Kyuha Chung

Bianxiao Zhong

Zuchen Lin

Lenin J Petroff

Donald Anthony Kadlec

Qian Jane Feng

Diane Elizabeth Swarthout

Myron T Maxson

Michael Raymond Strong

Janet Mary Smith

Michael Stephen Starch

Mark David Fisher

Ann Walstrom Norris

Khristopher Edward Alvarez

Beth Ann Witucki

David Randall Meinhardt

Roger Allen Frazer

A thermally conductive grease includes (A) a polyorganosiloxane having a viscosity less than 50 cSt (mm/s) at 25&#xb0; C. and (B) a thermally conductive filler. The thermally conductive grease is useful as a thermal interface material for electronic devices.

Thermally conductive grease and methods and devices in which said grease is used

A phase change composition comprises: a matrix comprising an organofunctional silicone wax, and a thermally conductive filler. The composition can be used as a thermal interface material in electronic devices. The composition is formulated to have any desired phase change temperature.

Thermally conductive phase change materials

This invention is directed to an elastomer composition produced by crosslinking a high molecular weight &equiv;Si&mdash;H containing polysiloxane and a diene, diyne or ene-yne compound in the presence of a diluent. The elastomer composition is suitable for use in forming personal care compositions.

Silicone elastomers compositions

Nanoporous silicone resins having low dielectric constants

Silicone resin compositions having good solution solubility and stability

Nanoporous silicone resins having low dielectric constants and method for preparation

Soluble silicone resin compositions having good solution stability

Polyorganosiloxane gels are prepared using compositions curable by a platinum catalyzed hydrosilation reaction that are characterized by the presence of a non-functional silicone fluid. The gel may contain additional components and may also be formulated into a multi-part system.

Routes to dielectric gel for protection of electronic modules

A method of thickening solvents involves reacting (A) an .ident.Si--H containing polysiloxane with (B) an alkene such as an alpha, omega-diene; conducting the reaction in the presence of a platinum catalyst and (C) a solvent; continuing the reaction until a gel is formed by crosslinking and addition of .ident.Si--H across double bonds in the alpha, omega-diene; adding additional solvent and a post cure terminating agent to the gel; and subjecting the solvent, the post cure terminating agent, and the gel to shear force until a paste is formed. The post cure terminating agent is an amino acid ester, preferably a sulfur containing amino acid ester, such as methionine methyl ester, methionine ethyl ester, cysteine methyl ester, cysteine ethyl ester, and cystine dimethyl ester.

Terminating post cure with amino acid esters

Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by crosslinking reactions of .tbd.Si--H containing siloxanes and an unsaturated hydrocarbon such as an alpha, omega-diene, in the presence of a low molecular weight siloxane fluid. The .tbd.SiH siloxane is first partially reacted with either a monoacrylate functionalized polyether or a monomethacrylate functionalized polyether. It is then crosslinked by the alpha, omega-diene in the presence of the low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer gel can be swollen with the low molecular weight siloxane fluid under shear force to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique Theological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion without using a surfactant to allow normally immiscible materials to become intimately mixed.

Thickening of low molecular weight siloxanes with acrylate/methacrylate

A multiple emulsion of the type W.sub.1 /O/W.sub.2 is made by first preparing a primary emulsion W.sub.1 /O using a silicone fluid as the oil phase (O), and an elastomeric silicone polyether as an emulsifier, for dispersing water phase W.sub.1 into oil phase (O). The primary emulsion W.sub.1 /O is then added and dispersed into a final continuous water phase W.sub.2 to form a multiple emulsion W.sub.1 /O/W.sub.2. The multiple emulsions are useful for treating the hair, the skin, or the underarm areas of the human body. Vitamins or drugs can be included in the oil phase (O) or in either aqueous phase W.sub.1 or W.sub.2 to enhance the benefits of the multiple emulsions in personal care applications.

Water-in-oil-in water emulsion

A method of thickening solvents involves reacting (A) an .tbd.Si--H containing polysiloxane with (B) an alpha, omegadiene; conducting the reaction in the presence of a platinum catalyst and (C) a solvent; continuing the reaction until a gel is formed by crosslinking and addition of .tbd.Si--H across double bonds in the alpha, omega-diene; adding additional solvent and a post cure quenching agent to the gel; and subjecting the solvent, the post cure quenching agent, and the gel to shear force until a paste is formed.

Quenching post cure

Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by combining in one pot an .tbd.Si--H containing siloxane, a mono-alkenyl polyether, an alpha, omega-diene, and a low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer can be swollen with the low molecular weight siloxane fluid under shear force, to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique rheological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion, without using a surfactant to allow normally immiscible materials to become intimately mixed.

Thickening solvents with elastomeric silicone polyethers

Silicone gels are made by reacting an .tbd.Si--H containing polysiloxane with an alpha-olefin and an alpha, omega-diene. The reaction is conducted in the presence of a platinum catalyst and in the presence of a low molecular weight silicone oil. First, an .tbd.Si--H containing polysiloxane is grafted by long chain alkyl groups from the alpha-olefin onto the .tbd.Si--H containing polysiloxane, and then crosslinked with double bonds in the alpha, omega-diene, in the presence of the low molecular weight silicone oil. The formed silicone gel can then be crumbled into a silicone powder using mechanical force. When additional amounts of the low molecular weight silicone oil are added to the gel, and the silicone oil and the gel are subjected to shear force, a silicone paste can be formed.

Growing community of inventors

Midland, MI, United States of America

Shizhong Zhang