Dow Corning Corporation

Other

Unnikrishnan R Pillai

Jonathan David Wineland

Dimitris Katsoulis

Robert Thomas Larsen

Matthew J McLaughlin

Joseph Peter Kohane

Stephanie Berger

James L Huether

Daniel L Yee

Joseph Pete Kohane

A method of making a trihalosilane comprising contacting an organotrihalosilane according to the formula RS1X3 (I), wherein R is C-Chydrocarbyl and each X independently is halo, with hydrogen, wherein the mole ratio of the organotrihalosilane to hydrogen is from 0.009:1 to 1:2300, in the presence of a catalyst comprising a metal selected from (i) Re, (ii) a mixture comprising Re and at least one element selected from Pd, Ru, Mn, Cu, and Rh, (iii) a mixture comprising Ir and at least one element selected from Pd and Rh, (iv) Mn, (v) a mixture comprising Mn and Rh, (vi) Ag, (vii) Mg, and (viii) Rh at from 300 to 800&#xb0; C. to form a trihalosilane.

Method of making a trihalosilane

The invention pertains to a process for the preparation of organohalosilanes. The process comprises contacting a first finely-divided silicon comprising from 0.08 to 0.25% (w/w) of aluminum with an organohalide in a reactor at a temperature of from 250 to 350&#xb0; C. in the presence of a Direct Process catalyst comprising copper, and a promotor; and introducing a second finely-divided silicon into the reactor comprising from 0.001 to &#x3c;0.10% (w/w) of aluminum into the reactor as needed in an amount sufficient to maintain an aluminum concentration of from 0.08 to 0.2% (w/w), based on a weight of unreacted silicon and aluminum.

Method of making organohalosilanes

The invention pertains to a method of producing organohalohydrosilanes by treating a silicon metal with a halogen-containing compound, wherein the halogen-containing compound has a formula selected from RSiX(II) and RX (III), combining a catalyst and a promoter with the treated silicon metal, and contacting the combination with hydrogen gas and an organohalide. The invention also pertains to a method of producing organohalohydrosilanes by contacting an organohalide and hydrogen gas with a combination of silicon metal, a catalyst, a promoter and a hydrogen storage material. The invention also pertains to a method of producing organohalohydrosilanes by contacting an organohalide and hydrogen gas with a combination of a silicon metal, a catalyst, a promoter and a hydrogenation catalyst. The invention also pertains to a method of producing organohalohydrosilanes by contacting an organohalide and hydrogen gas with a reaction mass residue and optionally a hydrogenation catalyst.

Process for producing organohalohydrosilanes

A protocol for communication between devices connected via a bus having three handshake lines and at least one data line. A first device controls two of the three handshake lines, and a second device controls the third. The first device mixes toggling of the first and second handshake lines in a pattern which identifies a type of information packet. The second device polls the first and second handshake lines, and from the toggling pattern identifies the packet type. Once identified, the packet is transmitted according to a predefined format for the type. Typically, transmission of information is completed asynchronously using the handshake lines to carry request and acknowledge signals. In one embodiment, the protocol is implemented in a virtual reality system having a video game console as a first device and a head mounted display as the second device.

Communications protocol

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Union, KY, United States of America

Unnikrishnan R Pillai