Abstract: A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.

Abstract: The present invention provides a stretchable film that is excellent in stretch and strength and water repellency on the film surface, and a method for forming the stretchable film. The present invention was accomplished by a stretchable film including a resin having a branched siloxane bond having 3 to 11 silicon atoms on a side chain and having a urethane bond on a main chain.

Abstract: A composition is provided comprising (a) a polysilazane having a monovalent hydrocarbon group, (b) untreated metal oxide nanoparticles, metal oxide nanoparticles having a monovalent hydrocarbon group, or metal oxide nanoparticles having an alkylsilyl or alkoxysilyl group, and (c) an aprotic solvent. The composition has storage stability and is suitable for forming a film having water repellent, especially superhydrophobic properties.

Abstract: 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.

Abstract: 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.

Abstract: 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), R1 is alkyl, alkenyl, aryl or aralkyl, R2 is alkenyl, aryl or aralkyl, R3 and R4 each are a monovalent hydrocarbon group, and n is 0, 1 or 2.

Abstract: The present invention provides a stretchable film that is excellent in stretch and strength and water repellency on the film surface, and a method for forming the stretchable film. The present invention was accomplished by a stretchable film including a resin having a branched siloxane bond having 3 to 11 silicon atoms on a side chain and having a urethane bond on a main chain.

Abstract: A copolymer of triisopropylsilyl (meth)acrylate with a (meth)acrylic acid derivative having a Mn of 6,000-100,000 and a Mw/Mn of up to 2.0 is provided. A paint composition comprising the copolymer and a relatively small amount of an organic solvent has a low viscosity.

Abstract: 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.

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

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

Abstract: 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.

Abstract: 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), R1 is alkyl, alkenyl, aryl or aralkyl, R2 is alkenyl, aryl or aralkyl, R3 and R4 each are a monovalent hydrocarbon group, and n is 0, 1 or 2.

Abstract: A silazane compound useful as synthesis intermediates for paint additives, polymer modifiers, pharmaceuticals and agricultural chemicals is efficiently prepared by reaction of a halosilane compound with an amino-containing compound in a solvent which is the same silazane compound as the target product.

Abstract: A method for producing a cyclic aminoorganoxysilane compound is provided. The method comprises the step of conducting dehydrochlorination coupling of a chloroalkylalkoxysilane compound represented by the formula: wherein R1 is a straight or branched divalent C1-10 hydrocarbon group, R2 is hydrogen atom or an unsubstituted or substituted C1-10 monovalent hydrocarbon group, R3 and R4 are respectively a C1-10 monovalent hydrocarbon group, and n is 0, 1, or 2 and an aminoalcohol represented by the formula: wherein R5 is a straight or branched C2-10 divalent hydrocarbon group which may contain a heteroatom and R6 is hydrogen atom or a straight or branched C1-10 monovalent hydrocarbon group, and promoting intramolecular transesterification to thereby produce a cyclic aminoorganoxysilane compound represented by the formula: wherein R1 to R6 and n are as defined above.

Abstract: A method for producing a cyclic aminoorganoxysilane compound is provided. The method comprises the step of conducting dehydrochlorination coupling of a chloroalkylalkoxysilane compound represented by the formula: wherein R1 is a straight or branched divalent C1-10 hydrocarbon group, R2 is hydrogen atom or an unsubstituted or substituted C1-10 monovalent hydrocarbon group, R3 and R4 are respectively a C1-10 monovalent hydrocarbon group, and n is 0, 1, or 2 and an aminoalcohol represented by the formula: wherein R5 is a straight or branched C2-10 divalent hydrocarbon group which may contain a heteroatom and R6 is hydrogen atom or a straight or branched C1-10 monovalent hydrocarbon group, and promoting intramolecular transesterification to thereby produce a cyclic aminoorganoxysilane compound represented by the formula: wherein R1 to R6 and n are as defined above.

Abstract: Silyl-protected nitrogen-containing cyclic compounds having formula (1) are provided wherein R1, R2 and R3 each are a monovalent hydrocarbon group, R4 and R5 each are a divalent hydrocarbon group, R6, R7 and R8 each are H or a monovalent hydrocarbon group. A is —C(O)OR9 or —C?N, R9 is a monovalent hydrocarbon group, and a is 0 or 1. The compounds are added to polyurethane, polyester or polycarbonate resins to form one part type curable compositions for imparting stiffness, mechanical strength and transparency thereto.

Abstract: The present invention provides a method for obtaining high purity chlorosilanes from chlorosilanes containing boron impurities and phosphorus impurities. On the basis of the finding that solid by-product formation in the purification of chlorosilanes by adding an aromatic aldehyde results from a catalytic reaction by iron ions or rust-like iron, a Lewis base having a masking effect is added to chlorosilanes. Examples of the Lewis base include a divalent sulfur-containing compound and an alkoxysilane. The divalent sulfur-containing compound is preferably a compound represented by the formula: R—S—R? (wherein R is a hydrocarbon group or a carbonyl group; and the sum of the carbon atoms in R and R? is 7 or more), and the alkoxysilane is preferably a compound represented by the formula: RxSi(OR?)4-x (wherein R and R? are each an alkyl group having 1 to 20 carbon atoms).

Abstract: A silazane compound useful as synthesis intermediates for paint additives, polymer modifiers, pharmaceuticals and agricultural chemicals is efficiently prepared by reaction of a halosilane compound with an amino-containing compound in a solvent which is the same silazane compound as the target product.

Abstract: A [3-(2-norbornyl)-2-norbornyl]silane compound having formula (1) is novel, wherein R1 is a monovalent hydrocarbon radical, X is halogen or an organoxy OR2, R2 is a monovalent hydrocarbon radical, n is 1 or 2 when X is halogen, and n is 0, 1 or 2 when X is organoxy. It is a useful reactant for forming surface coatings on electronic parts.