Dow Corning Corporation

Terrence K Hilty

Howard M Bank

Anthony Revis

Gary Michael Wieber

Russell Keith King

Kenneth Christopher Fey

Eugene D Groenhof

Tina Leaym

David P Jones

Glenn Frederick Viaplana Gordon

John C Saam

Loren D Durfee

Lori Ann Stark-Kasley

William Henry Campbell

Nedeljko V Gvozdic

Carl Allen Fairbank

Sean P Davern

Wayne J Chatterton

Traction fluids

Traction fluids suitable for operations under widely varying temperature environments, particularly having excellent low temperature properties are described. The tractions fluids comprise blends of organic oils and siloxane compositions. The siloxane compositions may include MTQ, MT, MQ, MDT, MDM, or D units in varying molar percents.

Tractions fluids having excellent low temperature properties

The present invention is novel chlorine end-terminated organosiloxanes and a hydrosilylation process for their preparation. The process comprises contacting a chlorine end-terminated (organohydrogen)siloxane and an .alpha.-olefin in the presence of a platinum catalyst, at a temperature of 50.degree. C. to 200.degree. C. The products of this process are chlorine end-terminated organosiloxanes.

Hydrosilylation process for preparation of novel chlorine end-terminated

A cycloalkoxysilane, having utility as an electron donor in the Ziegler-Natta polymerization of olefinic monomers, of the structure

Cycloalkoxysilanes

Novel silicone acrylate polymers and a method for their preparation is disclosed. These polymers are formed from silicone acrylates, silicone diacrylates, or mixtures with organic acrylates. The copolymer formed from the reaction mixture of silicone acrylates and organic acrylates is useful in enhancing glass reinforced polyesters.

Silicone polymers, copolymers and block copolymers and a method for

The present invention is a process for the disproportionation of arylsilanes using a phenylborane as a catalyst. The process uses sodium borohydride to activate the phenylborane catalyst, thereby reducing the induction time associated with the use of the phenylborane catalyst. The present process is especially useful for the disproportionation of phenyldichlorosilane to diphenyldichlorosilane and dichlorosilane.

Sodium borohydride as activator for phenylborane catalyzed

Thermo-oxidatively stable polysiloxanes are prepared by adding certain zirconium compounds to the fluid. These zirconium compounds are of the organozirconium or siloxyzirconium types. Two methods for preparation of the fluids is discussed. The fluids of this invention are useful as heat transfer fluids, lubricants, or damping fluids. They have particular usefulness in applications that have a low surface area to volume ratio.

Method to prepare thermo-oxidatively stable phenylmethylsiloxane fluids

A process for the chlorodephenylation of a phenyl-containing disilane to produce alkylhalodisilanes is described. The process comprises (A) adding an aluminum halide, AlX.sub.3, to a phenyl-containing disilane, having the formula,

Process for the chlorodephenylation of phenyldisilanes

Polydiorganosiloxane gum, of the type produced by the alkaline metal catalyzed polymerization of organocyclosiloxanes can be reduced in hydroxyl content by mixing the gum with an acid or acid producing phosphoric component and a silylamine component, allowing the mixture to react until the hydroxyl groups are lowered to the desired extent, then devolatilizing the gum. The hydroxyl content can be lowered without causing any significant change in the molecular weight of the gum. The hydroxyl content can be lowered to essentially zero.

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Midland, MI, United States of America

Terrence K Hilty