Abstract: A hydrosilylation reaction curable curable silicone composition comprising barium titanate microparticles or barium titanate microparticles having a surface which is partially or fully covered by a silica layer with a cumulant average particle size of at most 200 nm, wherein a refractive index after curing is at least 1.55, preferably a curable silicone composition in which the barium titanate microparticles are barium titanate microparticles surface-treated by an organosilicon compound having a silicon atom-containing hydrolyzable group etc. bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater) and having at least one structure in the molecule in which the silicon atoms are bonded to other siloxane units.

Abstract: A surface treatment agent comprising an organic silicon compound having: a functional group selected from a highly polar functional group, a hydroxyl group-containing group, a silicon atom-containing hydrolyzable group, or metal salt derivatives thereof bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater) and having at least one structure in the molecule in which the silicon atoms are bonded to any siloxane unit represented by R13SiO1/2, R12—SiO2/2, R1SiO3/2, and SiO4/2, wherein the refractive index at 25° C. is at least 1.45.

Abstract: A curable silicone composition comprising: an organopolysiloxane represented by the average unit formula: (R13—SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d (wherein the R1 moieties are alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; the R2 moieties are groups represented by R1, condensed polycyclic aromatic groups, or groups including a condensed polycyclic aromatic group, provided that at least one of the R1 and R2 moieties in the molecule is an alkenyl group or hydrogen atom and at least one R2 moiety in the molecule is a condensed polycyclic aromatic group or a group having a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying the relationship: 0.01?a?0.8, 0?b?0.5, 0.2?c?0.9, 0?d<0.2, and a+b+c+d=1); and metal oxide microparticles with an average particle size of at most 500 nm and a refractive index of at least 1.55.

Abstract: A surface treatment agent for an optical material comprising an organic silicon compound having a functional group selected from a highly polar functional group, a hydroxyl group-containing group, a silicon atom-containing hydrolyzable group, or metal salt derivatives thereof bonded to silicon atoms directly or via a functional group with a valency of (n+1) (n is a number equal to 1 or greater); and having at least one structure in the molecule in which the silicon atoms are bonded to any siloxane unit represented by R13SiO1/2, R12SiO2/2, R1SiO3/2, and SiO4/2.

Abstract: A methacryloxy group- or acryloxy group-containing polyorganosiloxane in which a methacryloxy group or acryloxy group is bonded to a silicon atom in the polyorganosiloxane across a long-chain alkylene group or poly(alkyleneoxy)-long chain-alkylene group having 11 to 20 carbon atoms. A method of producing this methacryloxy group- or acryloxy group-containing polyorganosiloxane, in which a silicon-bonded hydrogen atom-containing polyorganosiloxane is addition reacted in the presence of a hydrosilylation reaction catalyst with a 1-alkenyl methacrylate or a 1-alkenyl acrylate or a 1-alkenyloxypolyalkylene glycol methacrylate or a 1-alkenyloxypolyalkylene glycol acrylate.

Abstract: A substrate is surface treated using a composition for forming a film that comprises (A) an organoalkoxysilane, (B) an organopolysiloxane having a silicon-bonded hydrogen atom, and (C) a condensation reaction catalyst. This composition for forming a film can form a highly hydrophobic water repellent film provided with sufficient water shedding performance. It is possible to provide a highly hydrophobic substrate such as a heat dissipating body.

Abstract: An objective of the present invention is to provide a lignocellulose material exhibiting superior dimensional stability and having a reduced water-absorbing property, as well as provide a lignocellulose hybrid material, a paper product or a wood product, with superior dimensional stability and a reduced water-absorbing property. In the present invention, a lignocellulose material is treated with a treatment agent for use in a lignocellulose material containing: (A) a polyvalent carboxylic acid or a derivative thereof; and (B) a silicon compound containing a functional group binding to a silicon atom, and thereby, a lignocellulose hybrid material is obtained. In addition, a paper product or a wood product is obtained by using the aforementioned lignocellulose hybrid material.

Abstract: A hydrosilylation curable silicone composition that forms a cured product with a high refractive index, high transparency, excellent heat resistance, and excellent flexibility, the hydrosilylation curable silicone composition comprising, as a main component, an organopolysiloxane represented by the following average unit formula: (R13SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d wherein, R1 are alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; R2 is a group recited for R1, a condensed polycyclic aromatic group, or a group containing a condensed polycyclic aromatic group, provided that at least one of R1 or R2 in a molecule is an alkenyl group or hydrogen atom, and at least one R2 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c, and d are numbers satisfying: 0.01?a?0.8, 0?b?0.5, 0.2?c?0.9, 0?d<0.2, and a+b+c+d=1.

Abstract: An organopolysiloxane which forms a cured product having a high refractive index, high transparency, and excellent heat resistance when subjected to a hydrosilylation reaction and which is represented by the following average unit formula: (R13SiO1/2)a(R12SiO2/2)b(R2SiO3/2)c(SiO4/2)d wherein, R1 are alkyl groups, alkenyl groups, phenyl groups, or hydrogen atoms; R2 is a group represented by R1 or a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group, but at least one of R1 or R2 in a molecule is an alkenyl group or a hydrogen atom, at least one R2 in a molecule is a condensed polycyclic aromatic group or a group containing a condensed polycyclic aromatic group; and a, b, c and d are numbers that satisfy: 0.01?a?0.8, 0?b?0.5, 0.2?c?0.9, 0?d<0.2 and a+b+c+d=1.

Abstract: The present invention provides a novel modified-polysiloxane, method for producing the same, and a cosmetic containing the same. The aforementioned modified-polysiloxane exhibits a reduced viscosity and superior operationability as compared with conventional polyoxyalkylene-modified polysiloxanes and polyglycerol-modified polysiloxanes. In addition, since the modified-polysiloxane is hardly oxidized in air, hardly produce allergenic compounds such as formates, and aldehydes such as formaldehyde, during storage over time, an increased environmental compatibility can be exhibited. In addition, the modified-polysiloxane of the present invention exhibits a reduced hydrolysis property and is stable. In the modified-polysiloxane of the present invention, the terminal hydroxyl groups of a polyglycerol-modified polysiloxane are partially blocked with hydrocarbon groups.

Abstract: A substrate is surface treated using a composition for forming a film that comprises (A) an organoalkoxysilane, (B) an organopolysiloxane having a silicon-bonded hydrogen atom, and (C) a condensation reaction catalyst. This composition for forming a film can form a highly hydrophobic water repellent film provided with sufficient water shedding performance. It is possible to provide a highly hydrophobic substrate such as a heat dissipating body.

Abstract: The present invention provides a novel amino-functional organopolysiloxane which is difficult to be colored over time or by heating, and provides a method for producing a novel amino-functional organopolysiloxane which is difficult to be colored over time or by heating, in which production of cyclic by-products can be prevented, and the aforementioned amino-functional organopolysiloxane can be easily synthesized without using complicated and/or troublesome operations. A polysiloxane-hydrocarbylene aminohydrocarbylene multiblock copolymer is obtained by subjecting a polysiloxane in which both terminals are capped with SiH groups and an amine or silylamine having two aliphatic unsaturated bonds in one molecule to an addition reaction.

Abstract: The present invention provides a novel and stable organopolysiloxane, which has both hydrophobic properties and hydrophilic properties and exhibits reduced hydrolysis properties, and provides a preparation method capable of easily synthesizing the aforementioned organopolysiloxane without using complicated and/or troublesome operations. A polysiloxane-N,N-dihydrocarbylene sugar-modified multiblock copolymer is obtained by reacting a polysiloxane-hydrocarbylene aminohydrocarbylene multiblock copolymer having a secondary amino group with a sugar acid or an intramolecular dehydration cyclic product thereof.

Abstract: The present invention provides a cleanser which is excellent in both of the foaming property and the cleansing capability. The cleanser comprises an organosiloxane derivative salt represented by the following formula (1) or (3) and one or more anionic surfactants selected from a group consisting of carboxylate salt with an alkyl group having 10 to 20 carbon atoms, sulfate salt with an alkyl group having 10 to 20 carbon atoms, sulfonate salt with an alkyl group having 10 to 20 carbon atoms, and phosphate salt with an alkyl group having 10 to 20 carbon atoms.

Abstract: The present invention relates to an amino acid-modified organopolysiloxane emulsion obtainable by reacting (a) a carboxy-unprotected amino acid, and (b) organopolysiloxane having an epoxy group in the molecule in an aqueous medium in the presence of a surfactant, is incorporated in a cosmetic product. The present invention also relates to the simple and highly efficient production of emulsions of amino acid-modified polysiloxane, as well as the use of the emulsions as beautifying components.

Abstract: An objective of the present invention is to provide a lignocellulose material exhibiting superior dimensional stability and having a reduced water-absorbing property, as well as provide a lignocellulose hybrid material, a paper product or a wood product, with superior dimensional stability and a reduced water-absorbing property. In the present invention, a lignocellulose material is treated with a treatment agent for use in a lignocellulose material containing: (A) a polyvalent carboxylic acid or a derivative thereof; and (B) a silicon compound containing a functional group binding to a silicon atom, and thereby, a lignocellulose hybrid material is obtained. In addition, a paper product or a wood product is obtained by using the aforementioned lignocellulose hybrid material.

Abstract: The present invention relates to a process for producing an aramid silicone polymer. The present invention is characterized by reacting (A) a both-terminal amino-modified diorganopolysiloxane having a group represented by the following formula: —B—NH2 wherein B represents a divalent hydrocarbon group, at both terminals of a molecular chain, (B) an aromatic diamine, and (C) an aromatic dicarboxylic acid dihalide, in the presence of (D) an inorganic base, in (S1) water and (S2) an aprotic organic solvent, at a temperature of 10° C. or more. The present invention does not have to be carried out at a low temperature, and by-products can be easily treated. Furthermore, the present invention does not require a large amount of a reprecipitation solvent, and therefore it can be suitably used in mass production of an aramid silicone polymer.

Abstract: This invention relates to a cosmetics characterized in that it contains a gelling agent comprising an organopolysiloxane having a silicon-bonded organic group represented by general formula: R1—X—CO—NH—[X—N(—CO—X—R1)]p—X— (1) (wherein R1 designates a group containing metal salt of a carboxylic acid represented by formula —COO? (Mn+)1/n (where M is a metal that has a valence of 1 or higher); X's designate the same or different C2 to C14 bivalent hydrocarbon groups; and p designates an integer from 0 to 10.). Preferably, the organosiloxane has an optionally substituted C9 or more univalent hydrocarbon group. Adding the gelling agent makes it possible to provide a cosmetic possessing superior temporal stability, water retention properties, sensory feel, gloss, curl retention, and cleansing power.

Abstract: The present invention has objectives to provide an emulsion suitable as a cosmetic raw material and to easily obtain the aforementioned emulsion of organopolysiloxane exhibiting superior storage stability. The present invention provides an emulsion comprising (A) an organopolysiloxane, (B) a methyl polyglycerol-modified silicone-based surfactant having a specified structure, and (C) an aqueous medium, and provides a method for producing an emulsion characterized by obtaining an emulsion by emulsifying a mixture of (A) a organopolysiloxane and (B) a silicone-based surfactant, which is obtained by synthesizing the silicone-based surfactant of component (B) in the component (A).

Abstract: The present invention provides a novel fluorine-containing rubber composite material having both of excellent fuel impermeability and excellent cold resistance, a fuel impermeable sealing material comprising the composite material and a process for preparing the composite material. The fluorine-containing rubber composite material comprises crosslinked particles of fluorine-containing silicone rubber dispersed in a fluorine-containing rubber. It is preferable that the fluorine-containing rubber comprises a vinylidene fluoride/tetrafluoroethylene/perfluoro vinyl ether copolymer, and the composite material has cold resistance of not more than ?35° C. and fuel permeability of not more than 500 g·mm/m2·day. The fuel impermeable sealing material comprises the composite material. The process for preparing the composite material comprises a step for co-coagulation of a fluorine-containing rubber emulsion and an emulsion of crosslinked fluorine-containing silicone rubber.