Dow Corning Toray Company, Ltd.

Dow Corning Toray Silicone Company Limited

Dow Corning Corporation

Keiji Wakita

Yasushi Sugiura

Haruhiko Furukawa

Takuya Ogawa

Peter Cheshire Hupfield

Akihiko Shirahata

Kent R Larson

Kouichi Ozaki

Makoto Iwai

Eiji Kitaura

Yoshinori Taniguchi

Wataru Nishiumi

Hong Sub Kim

Masayuki Onishi

Hiroshi Fukui

Toyohiko Fujisawa

Takeaki Saiki

Paul Charles Dinh

Son Thanh Phan

The present invention provides a curable organopolysiloxane composition capable of producing a cured article that can be used as a transducer and provided with excellent mechanical characteristics and/or electrical characteristics. The present invention also relates to a novel curable organopolysiloxane composition for transducer use comprising a curable organopolysiloxane composition, dielectric inorganic fine particles having a specific dielectric constant of greater than or equal to 10, and fine particles having a specific dielectric constant of less than 10.

Curable organopolysiloxane composition for transducers and applications of such curable silicone composition for transducers

The present invention provides a curable organopolysiloxane composition capable of producing a cured article that can be used as a transducer and provided with excellent mechanical characteristics and/or electrical characteristics. The present invention also relates to a novel curable organopolysiloxane composition for transducer use comprising a curable organopolysiloxane composition and a compound having a highly dielectric functional group.

The present invention relates to a compound represented by the following general formula (I): wherein in which

4-hydroxyphenylalkylamine derivative

This invention involves a process for the preparation of haloalkylalkoxysilanes and haloalkylhalosilancs. The process comprises reacting an alkoxyhydridosilane or a halohydridosilanc silane with an alkenylhalide compound in the presence of a catalytic amount of an iridium containing catalyst. When a halohydridosilane is the silane reactant. The resulting haloalkylhalosilane may be alkoxylated by reaction with a C-C, alcohol. In another aspect of the invention, the reacting is conducted under a reduced oxygen atmosphere to improve the catalyst activity and the yield of the resulting haloalkylhalosilane or haloalkylalkox vsi lane.

Process for the preparation of haloalkylalkoxysilanes and haloalkylhalosilanes

A method of manufacturing an organic silicon compound that contains a methacryloxy group or an acryloxy group is characterized by the fact that manufacturing or conducting purification by distillation is carried out in the presence of a phenothiazine derivative having a molecular weight equal to or higher than 240. A stable composition comprises the organic silicon compound that contains a methacryloxy group or an acryloxy group and the phenothiazine derivative having a molecular weight equal to or higher than 240. The phenothiazine derivative is used in an amount sufficient to stabilize the organic silicon compound.

Method of manufacturing an organic silicon compound that contains a methacryloxy group or an acryloxy group

To provide an aminoaryl-containing organosilicon compound with high efficiency, after protecting amino groups of a haloaniline compound with a specific compound, to form a Grignard reagent and to deprotect the aforementioned groups by reacting the Grignard reagent with a silicon compound.

Method of manufacturing an aminoaryl-containing organosilicon compound and method of manufacturing an intermediate product of the aforementioned compound

A method for producing ketimine structure-containing alkoxysilane comprising reacting amino-functional alkoxysilane with a monocarbonyl compound by heating and azeotropically distilling off the produced water together with the monocarbonyl compound to yield ketimine structure-containing alkoxysilane, characterized by introducing additional monocarbonyl compound at the time of the azeotropic distillation of the produced water together with the monocarbonyl compound.

Method for producing ketimine structure-containing alkoxysilane

A method for making a silylalkoxymethyl halide at good yield represented by the formula:RRRSi&#x2014;R&#x2014;O&#x2014;CHXwherein R, R, and Rare an alkyl, cycloalkyl, aryl group, or a halogen atom, Ris a divalent hydrocarbyl group having 1 to 10 carbon atoms, and X is a halogen atom, by reacting:

Method of producing silylalkoxymethyl halide

To provide an aminoaryl containing organosilicon compound with high efficiency, after protecting amino groups of a haloaniline compound with a specific compound, to form a Grignard reagent and to deprotect the aforementioned groups by reacting the Grignard reagent with a silicon compound.

A curable organic resin composition comprising (A) 100 parts by weight of a curable organic resin and (B) 0.01 to 100 parts by weight of a thiocyanato-containing organohydrocarbonoxysilane or an isothiocyanato-containing organohydrocarbonoxysilane represented by the general formula: X&#x2014;R&#x2014;Si(OR)nR, wherein X is NCS&#x2014; or SCN&#x2014;, Ris an alkylene or alkyleneoxyalkylene group, Rand Rare monovalent hydrocarbon groups, and the subscript n is 1, 2, or 3. The curable organic resin composition possesses superior moldability and, when cured, exhibits superior adhesive properties on substrates such as metals.

Thermosetting resin and thiocyanato-containing organohydrocarbonoxysilane

A method for manufacturing metal salts of radical-polymerizable compounds with reduced amount of water in the below-mentioned component (A) by subjecting an aqueous solution of an alkali-metal salt, alkali earth-metal salt, or a zinc salt of the radical-polymerizable compound (A) to heating under a reduced pressure in the presence of an aqueous polymerization inhibitor for removal of aqueous components by distillation from aforementioned compounds (A).

Process for the production of metal salts of radical-polymerizable compounds

A process for the preparation of (D) thiocyanato-bearing organoalkoxysilanes represented by the general formula (3) NCS&#x2014;R&#x2014;Si(OR)Rwherein Ris a divalent hydrocarbon group having 1 to 6 carbon atoms, Rand Rare monovalent hydrocarbon groups, and the subscript n has a value of from 0 to 3, in which (A) a thiocyanic acid salt represented by the general formula (1) MSCN, wherein M is an alkali metal and (B) a halogenated alkylalkoxysilane represented by the general formula (2) XRSi(OR)Rwherein X is a halogen atom, and R, R, R, and the subscript n are the same as above, are reacted in the presence of (C) a phase transfer catalyst.

Process for preparation of thiocyanato-bearing organoalkoxysilanes

A method of preparing an organosilicon compound containing an acryloxy-functional group or a methacryloxy-functional group represented by general formula CH &boxH;CR &mdash;COO&mdash;R &mdash;Si(OR ) R , where R , R , R , R are as described below, comprising reacting (a) an alkali-metal salt of acrylic acid or an alkali-metal salt of methacrylic acid described by general formula CH &boxH;CR COOM , where R is a methyl group or a hydrogen atom and M is an alkali metal and (b) an organosilicon containing a halogen-substituted organic group described by general formula XR Si(OR ) R , where X is a halogen atom, R is an alkylenoxyalkylene group or an alkylene group comprising 1 to 6 carbon atoms, R3 is an alkyl group comprising 1 to 6 carbon atoms or an alkoxyalkyl group comprising 2 to 4 carbon atoms, R is a monovalent hydrocarbon group, and n is an integer of 1 to 3; in the presence of (c) a tertiary amine having a cyclic structure selected from the group consisting of 1,8-diazabicyclo&lsqb;5.4.0&rsqb;undec-7-ene, 1,4-diazabicyclo&lsqb;2.2.2&rsqb;octane, and 1,5-diazabicyclo&lsqb;4.3.0&rsqb;-non-5-ene.

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Midland, MI, United States of America

Keiji Wakita