Shin-etsu Chemical Co., Ltd.

Takayuki Honma

Tohru Kubota

Ayumu Kiyomori

Yoichi Tonomura

Shuji Tanaka

Takanobu Tsudera

Hiromi Nishiwaki

Masaki Takeuchi

Daijitsu Harada

Hiroyuki Yamazaki

Daisuke Iwai

Masato Kawakami

Yasufumi Kubota

Naoki Yamauchi

Polycyclic aminosilane compounds of specific structure are fully effective for use as silane coupling agents, surface treating agents, resin additives, paint additives, and adhesives and evolve little or no low-boiling alcohols during service.

Polycyclic aminosilane compounds and making method

An amino-containing organosilicon compound having formula (1) is used for surface treatment of an inorganic filler for thereby rendering the filler more compatible with and adhesive to a polymer material. In formula (1), Ris alkyl, alkenyl, aryl or aralkyl, Ris alkenyl, aryl or aralkyl, Rand Reach are a monovalent hydrocarbon group, and n is 0, 1 or 2. 

Amino-containing organosilicon compound and making method

A composition consisting essentially of 90-99 parts by weight of a nitrogen-containing organoxysilane compound and 1-10 parts by weight of an isomer affords an appropriate cure behavior and is useful as paint additive, adhesive, silane coupling agent, textile treating agent, and surface treating agent.

Composition containing nitrogen-containing organoxysilane compound and method for making the same

An organosilicon compound having diphenylethyl and methoxysilyl groups is more readily hydrolyzable than ethoxysilyl-containing organosilicon compounds and generates no hydrogen chloride on use.

Organosilicon compound having diphenylethyl and methoxysilyl and making method

Novel amino acid-modified silane compounds having a weakly acidic amino group and a weakly basic carboxyl group are useful as a surface treating agent or textile treating agent.

Amino acid-modified silane compounds and making method

A nanoimprint-mold release agent including an alkoxysilane compound represented by general formula (1) is provided wherein Rand R' are each independently a fluoroalkyl group of 1 to 10 carbon atoms; Ris a hydrogen atom or an aliphatic monovalent hydrocarbon group of 1 to 6 carbon atoms; Rand Rare each independently methyl group or ethyl group; X and Y are each independently an ether linkage or an ester linkage; a and b are each 0 or 1; m, n, and p are each an integer of 0 to 6; q is an integer of 1 to 6 and r is an integer of 0 to 2.

Nanoimprint-mold release agent, surface treatment method, and nanoimprint mold

Disclosed are silazane compounds having two fluoroalkyl groups, represented by the following general formula (1): wherein Rand R' are each a fluoroalkyl group, Ris a hydrogen atoms or an aliphatic monovalent hydrocarbon group, Rand Rare each an aliphatic monovalent hydrocarbon group, Ris a hydrogen atom or an aliphatic monovalent hydrocarbon group, a and b are each 0 or 1, m, n and p are each an integer of 0 to 6, q is an integer of 1 to 6, and r is 1 or 2. By treating an inorganic material with the silazane compound having two fluoroalkyl groups, high water and oil repellency and high sliding properties can be imparted to the inorganic material in good balance.

Silazane compounds having fluoroalkyl group and method of preparing the same

When an organoxysilyl or siloxy-containing ethylnorbornene compound is prepared by hydrosilylation of 5-vinyl-2-norbornene with a hydrogen organoxysilane or siloxy compound in the presence of a platinum catalyst, hydrosilylation is conducted in the co-presence of an ammonium salt. The organoxysilyl or siloxy-containing ethylnorbornene compound is effectively prepared at high reactivity and selectivity.

Preparation of organoxysilyl or siloxy-containing ethylnorbornene compound

Disclosed are alkoxysilane compounds having two fluoroalkyl groups and represented by the following general formula (1): wherein Rand R' are each a fluoroalkyl group of 1 to 10 carbon atoms, Ris a hydrogen atom or an aliphatic monovalent hydrocarbon group of 1 to 6 carbon atoms, Rand Rare each methyl group or ethyl group, X and Y are each an ether linkage or an ester linkage, a and b are each 0 or 1, m, n and p are each an integer of 0 to 6, q is an integer of 1 to 6, and r is an integer of 0 to 2. By treating an inorganic material with the alkoxysilane compound having ether linkage and two fluoroalkyl groups, high water and oil repellency and high sliding properties can be imparted to the inorganic material. The alkoxysilane compounds can be easily purified, owing to enhancement of volatility by the branched structure.

Alkoxysilane compounds having fluoroalkyl group and method of preparing the same

An organosilicon compound having an amino group is provided. This compound is represented by the following general formula (1): wherein Rand Rrespectively represent an unsubstituted or substituted aliphatic monovalent hydrocarbon group containing 1 to 10 carbon atoms with the proviso that the Rand Rmay together form a ring with the nitrogen atom to which they are bonded, and that Rand Rmay contain a heteroatom; Rand Rindependently represent an unsubstituted or substituted monovalent hydrocarbon group containing 1 to 10 carbon atoms; and n represents an integer of 0 to 2. Use of this compound enables production of a polymer product having excellent mechanical properties, high heat resistance, and high transparency. The solution of this compound is stable, and can be stored for a long time, and when used for a polymer modifying agent, it facilitates introduction of amino group and hydroxy group.

Organosilicon compound having amino group and its production method

A novel monofunctional monomer having a cage oligosiloxane structure is represented by formula (1) wherein X is a polymerizable oxygen-containing C-Cgroup, Ris a C-Csaturated hydrocarbon group, C-Caromatic hydrocarbon group, C-Corganoxy group or halogen atom, and R is a non-polymerizable monovalent C-Chydrocarbon group which is optionally halogenated. The monomer has improved compatibility with various solvents and polymerizable monomers. A method for preparing the same is also provided. 

Monofunctional monomer having cage oligosiloxane structure and method of making

High-purity trimethylaluminum has the following impurity contents: organosilicon components&#x2266;0.5 ppm, chlorine components&#x2266;20 ppm, hydrocarbon components&#x2266;1,000 ppm, Ca&#x2266;0.05 ppm, Fe&#x2266;0.05 ppm, Mg&#x2266;0.05 ppm, Na&#x2266;0.05 ppm, Si (Si components other than the organosilicon components)&#x2266;0.07 ppm, Zn&#x2266;0.05 ppm, and S&#x2266;0.05 ppm. The high-purity trimethylaluminum can be obtained by removing impurities from crude trimethylaluminum through distillation and evaporation.

High-purity trimethylaluminum and purification method of crude trimethylaluminum

A method of purifying an organometallic compound comprising

Purification method for organometallic compounds and organometallic compounds obtained therefrom

A contaminated Group III metal hydrocarbon is purified by providing an adduct of Group III metal hydrocarbon with a Lewis base in a solvent having a boiling point which is up to 200&#xb0; C., but at least 30&#xb0; C. higher than the boiling point of the Group III metal hydrocarbon, separating the solvent from the adduct, and heating the adduct for thermal dissociation, thereby releasing the Group III metal hydrocarbon in high purity form.

Purification of metal hydrocarbon

Trialkylgallium is prepared by reacting a gallium halide or alkyl gallium with trialkylaluminum in a solvent having a boiling point which is at least 10&#xb0; C. higher than the boiling point of the trialkylgallium, such as mesitylene or o-dichlorobenzene. High purity alkyl gallium is obtained in high yields.

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Joetsu, Japan

Takayuki Honma