Abstract: A reactor system may comprise a housing; and a condensation catalyst layer within the housing comprising a condensation catalyst comprised of at least one of a base-substituted zeolite, a stannous salt, or a phosphonitrile chloride. The condensation catalyst layer may be configured to catalyze a condensation reaction of a plurality of silane diols in water flowing through the housing into a plurality of siloxanes.

Abstract: A hydrosilylation iron catalyst prepared from a two-electron ligand (L) and a mononuclear, binuclear, or trinuclear complex of iron indicated by formula (1), Fe having bonds with carbon atoms included in X and the total number of Fe-carbon bonds being 2-10. As a result of using iron, the hydrosilylation iron catalyst is advantageous from a cost perspective as well as being easily synthesized. Hydrosilylation reactions can be promoted under mild conditions by using this catalyst. Fe(X)a??(1) (in the formula, each X independently indicates a C2-30 ligand that may include an unsaturated group excluding carbonyl groups (CO groups) and cyclopentadienyl groups, however at least one X includes an unsaturated group, a indicates an integer of 2-4 per Fe atom.

Abstract: The present invention relates to a production method for a liquid high-purity organosilicon compound, the method comprising the steps of: adding, to a mixture containing an organosilicon compound selected from a group consisting of organomodified silcones and organomodified silanes and impurities, an organic wax having affinity with the impurities and having a higher melting point than the organosilicon compound, melting and mixing while heating, and introducing the impurities into the melted organic wax; obtaining a solidified product of the organic wax by cooling the organic wax; and performing solid/liquid phase separation on the organosilicon compound and the solidified product of the organic wax. With the present invention, it is possible to provide a useful method for producing a high-purity organosilicon compound stably and on a commercial scale.

Abstract: The present invention discloses chiral siliceous composition comprising chiral or achiral silane moiety ‘A’, substituted in another moiety ‘B’ with tetrahedral metallo-silica or silica framework with mesoporous and microporous structure, useful as chiral heterogeneous catalyst and in enantioselective separations. The invention further discloses a method for introducing molecular level chirality in crystalline framework of silicate and metallosilicate with mesoporous or microporous structure thereof.

Abstract: Disclosed is a glass fiber-silsesquioxane composite molded article containing glass fibers and a cured material of a silsesquioxane polymer composited therewith, wherein the silsesquioxane has a polyhedral structure or a partially polyhedral structure. The glass fiber-silsesquioxane composite molded article is preferably obtained by impregnating glass fibers with a composition containing at least one of silsesquioxanes represented by formula (A-1) to (A-3) and at least one of a curing agent, a polymerization initiator, and a hydrosilylation catalyst, or the silsesquioxane polymer and allowing a curing reaction to proceed.

Abstract: An ordered structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

Abstract: The invention relates to a composition and a method for the production of the composition comprising block cocondensates of propylfunctional alkaline siliconates and silicates.

Abstract: A composition for forming a silicon-containing resist under layer film includes a silicon-containing compound which is obtained by hydrolysis, condensation or hydrolysis-condensation of a second silicon compound containing one or more compounds represented by the following general formula (1), wherein R represents an organic group having 1 to 6 carbon atoms, Ra, Rb and Rc each represents a substituted or unsubstituted monovalent organic group having 1 to 30 carbon atoms, w=0 or 1, x=0, 1, 2 or 3, y=0, 1 or 2, z=0, 1, 2 or 3; when w=0, 5?x+z?1, and the case where (x, z)=(1, 1), (3, 0) or (0, 3) are not included; and when w=1, 7?x+y+z?1, and the case where (x, y, z)=(1, 1, 1) is not included. The composition forms a resist under layer film with extremely less number of coating defects, and excellent adhesiveness in fine pattern and etching selectivity.

Abstract: The invention relates to a method for connecting substrates including depositing a plasma polymer layer on each of a first and a second substrate by means of atmospheric pressure plasma and bringing the plasma polymer layers in contact with each other. In a variant of the method, only the first substrate is provided with a plasma polymer layer and connected to a second substrate, the surface of which can react with the plasma polymer layer. The invention further relates to composite structures which can be obtained with such methods.

Abstract: Silicone pressure sensitive adhesive (PSA) compositions and methods for their preparation are provided. In one embodiment, PSAs are formed from a silicone polymer mixture by condensation polymerization of low viscosity polyorganosiloxanes in inert solvents and/or silicone fluids, and optionally adding a silicone resin (MQ) during polymerization. The silicone polymer mixture formed may also be mixed with a silicone resin (MQ) and bodying catalyst, and bodying is allowed to continue until the desired reaction product is formed.

Abstract: One object of the present invention is to provide a method for preparing a polyorganosiloxane without using any catalyst having corrosivity and toxicity such as an alkaline earth metal catalyst in a condensation reaction of at least one organic silicon compound having a silanol group and/or an alkoxy silyl group. The present invention is a method for preparing a polyorganosiloxane, wherein the method includes a step of condensation reacting at least one organic silicon compound having at least one —OX group bonding to a silicon atom in the molecule, wherein X is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an alkoxyalkyl group having 2 to 10 carbon atoms, in the presence of a catalyst, wherein the catalyst is at least one selected from the group having hydroxides or oxides of elements in Groups 3-15 of the periodic table.

Abstract: Methods of using inhibitor compounds are described. In particular, methods of using inhibitor compounds to inhibit the curing of a silicone composition that is a precursor of a silicone elastomer produced by a hydrosilylation reaction are described.

Abstract: A polycarbonate resin composition includes a polycarbonate resin; an inorganic filler, wherein the inorganic filler includes talc; and a novel silane compound represented by Formula 1: wherein R1 is C6 to C30 alkyl, R2 is a C6 to C30 hydrocarbon group, R3 is hydrogen or C1 to C5 alkyl, and n has an average value from about 0.1 to about 3. The polycarbonate resin composition can have excellent impact resistance with minimal or no reduction in molecular weight of the polycarbonate resin.

Abstract: A method of reacting compounds is described. The method can include flowing a first liquid comprising a first compound into an inlet of a conduit and through a fiber bundle comprising a plurality of fibers extending lengthwise in the conduit, and flowing, while flowing the first liquid, a second liquid comprising a second compound having at least one silicon atom into the inlet of the conduit and through the fiber bundle. The method can further include reacting the first compound and the second compound within the fiber bundle to produce a third compound having at least one silicon atom different from the first and second compounds, and flowing the third compound out an outlet of the conduit.

Abstract: A composition for forming a silicon-containing resist under layer film includes a silicon-containing compound which is obtained by hydrolysis, condensation or hydrolysis-condensation of a second silicon compound containing one or more compounds represented by the following general formula (1), wherein R represents an organic group having 1 to 6 carbon atoms, Ra, Rb and Rc each represents a substituted or unsubstituted monovalent organic group having 1 to 30 carbon atoms, w=0 or 1, x=0, 1, 2 or 3, y=0, 1 or 2, z=0, 1, 2 or 3; when w=0, 5?x+z?1, and the case where (x, z)=(1, 1), (3, 0) or (0, 3) are not included; and when w=1, 7?x+y+z?1, and the case where (x, y, z)=(1, 1, 1) is not included. The composition forms a resist under layer film with extremely less number of coating defects, and excellent adhesiveness in fine pattern and etching selectivity.

Abstract: Improved utilization of organosilicon compounds in hydrophobicizing finely divided particulate solids is accomplished by metering a partial amount of unreacted solids with organosilicon containing offgases derived from admixing and reacting a major portion of solids with organosilicon compounds and admixing the offgas-treated solids with the major portion of solids to be treated.

Abstract: Use of an atmospheric plasma for the surface treatment of inorganic particles selected from the group consisting of particles of metal oxides, particles of metal carbonates, particles of metal sulfates, particles of metal phosphates, acicular particles, platy particles and fibrous particles,with a fluorine-containing precursor.

Abstract: The invention relates generally to transition metal salts, more specifically to iron, nickel, cobalt, manganese and ruthenium salts, activated with silylhydrides, and their use as efficient hydrosilylation catalysts.

Abstract: Provided is an organopolysiloxane and its use. The organopolysiloxane may exhibit excellent processibility and workability. In addition, when the organopolysiloxane is used as an encapsulant, it exhibits excellent light extraction efficiency, crack resistance, hardness, thermal and shock resistance and an adhesive property.

Abstract: A light-emitting device including: a substrate; a light-emitting diode; and an optical resonance layer to resonate light emitted from the light-emitting diode. The optical resonance layer includes a first layer, including a polysilsesquioxane-based copolymer. A linking group connecting two different silicon (Si) atoms of the polysilsesquioxane-based copolymer can be —O—, or a substituted or unsubstituted C1-C30 alkylene group.

Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic monomer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.

Abstract: Embodiments of the invention are directed to the preparation of a discrete cyclosiloxane or a discrete mixture of cyclosiloxanes where a dihydroxysilane or dihydroxysiloxane condenses with a dihydrosilane or dihydroxysiloxane in the presence of a Lewis acid catalyst in a reaction phase including a solvent. The introduction of the dihydroxysilane or dihydroxysiloxane and dihydrosilane or dihydroxysiloxane is controlled such that the cyclocondensation occurs in a reaction phase that is dilute in the SiH and SiOH functionality permitting the isolation of the monocyclocondensation adduct in high yield with little higher molecular weight condensation products. In one embodiment of the invention 1,1-diphenyl-3,3,5,5-tetramethylcyclotrisiloxane is prepared in very high yield.

Abstract: A polymerizable dimethicone copolyol macromer composition is synthesized by reacting itaconic anhydride with a dimethicone copolyol. During the reaction itaconic anhydride spontaneously isomerizes to citraconic anhydride which in turn is esterified by the dimethicone copolyol. The obtained macromers are copolymerizable with olefinically unsaturated monomers. Polymers containing the macromer repeating units are useful in a variety of applications including personal care, textile and industrial formulations to deliver softness, lubricity, fixative, water repellency, gloss, surface modification, and surfactant properties.

Abstract: The present invention provides a fluorescent dye-silane hybrid resin manufactured by polycondensing an alkoxysilane bonded with a fluorescent dye with an organo-silane. More particularly, the present invention provides a fluorescent dye-siloxane hybrid resin that is manufactured by reacting a fluorescent dye having one or more functional groups with an alkoxysilane having an organic functional group to form an alkoxysilane bonded with the fluorescent dye and then polycondensing the alkoxysilane bonded with a fluorescent dye with an organo-silanediol and an organo-alkoxysilane having a thermocurable or ultraviolet-curable functional group without water. The fluorescent dye-silane hybrid resin has excellent thermostability, photostability, fluorescence characteristics, and processibility.

Abstract: A method of preparing a trihalosilane comprising the separate and consecutive steps of (i) contacting a copper catalyst with hydrogen gas and a silicon tetrahalide at a temperature of from 500 to 1400° C. to form a silicon-containing copper catalyst comprising at least 0.1% (w/w) of silicon, wherein the copper catalyst comprises a metal selected from copper and a mixture comprising copper and at least one element selected from gold, magnesium, and platinum; and (ii) contacting the silicon-containing copper catalyst with a hydrogen halide at a temperature of from 100 to 600° C. to form a trihalosilane.

Abstract: The invention provides an organopolysiloxane shown by the following formula (1); such that each R1 independently represents a group selected from an alkyl group having 1 to 30 carbon atoms and optionally substituted with a fluorine atom, an aryl group having 6 to 30 carbon atoms, and an aralkyl group having 7 to 30 carbon atoms; each R2 independently represents a divalent organic group having 2 to 15 carbon atoms and optionally intervened with an oxygen atom; and each R3 independently represents a group selected from a polyoxyalkylene group shown by the following formula (2), —(C2H4O)a(C3H6O)b(C4H8O)c(C5H10O)dR4??(2) a hydrogen atom, and a group shown by the following formula (3), wherein at least one of R3 in one molecule is the polyoxyalkylene group shown by the formula (2) with “m” representing an integer of 0 to 300 and “n” representing an integer of 1 to 10.

Abstract: [Subject] The object of the present invention is to provide a method for producing siloxane oligomers which contain a small amount of ring form and have a high molecular weight. [Solving Means] An embodiment of the present invention is a method for producing siloxane oligomers which includes using a 2-hydroxycarboxylic acid compound represented by a predetermined formula as a catalyst and subjecting an alkoxysilane to hydrolysis and condensation. According to the production method of the present invention, it is possible to synthesize siloxane oligomers with a low content of siloxanes having cyclic structures and a high molecular weight.

Abstract: The present invention is directed to a series of silicone containing polymeric glyceryl esters that have two different molecular weight ester chains, one solid and one liquid, which when combined into a single molecule make a polymer that is solid, but has very unique flow properties. These materials find applications as additives to formulations in personal care products where there is a desire to have a structured film (provided by the solid fatty group) and flow properties, (provided by the liquid fatty group). These compounds by virtue of their unique structure provide outstanding skin feel.

Abstract: The invention relates to emulsifiers comprising glycerin-modified organopolysiloxanes and to their use for the preparation of extraordinarily stable emulsions and dispersions.

Abstract: The invention relates to a process for producing siloxanes comprising reacting at least two siloxanes in the presence of an ion exchange resin catalyst comprising from 6 to 19 weight %, based upon the dry weight of the ion exchange resin catalyst, water, at a temperature from ambient to 110° C. The invention also relates to a process for reusing the ion exchange resin catalyst after the reacting of the at least two siloxanes in the presence of the ion exchange resin catalysts comprising adding water to the ion exchange resin catalyst to readjust the water content to from 6 to 19 weight % water, based on the dry weight of the catalyst, and then reacting at least two siloxanes in the presence of the readjusted water content ion exchange resin catalyst.

Abstract: The present disclosure describes compounds of Formula (I) wherein m is 1 to 6, n is 6 to 10 and R1 is a straight or branch chain siloxane, their use in methods to modify the surface of hydrophobic substrates to render the substrates superhydrophilic and surface-modified substrates.

Abstract: Silicon dioxide powder in the form of aggregated primary particles has a specific pore length L of 2.5×105 to 4×105 m/?g, where L is defined as the quotient formed from the square of the BET surface area and the cumulative 2-50 nm pore volume determined using the BJH method, as per the formula L=(BET×BET)/BJH volume. A silanized silicon dioxide powder in the form of aggregated primary particles has a specific pore length L of 2.5×105 to 3.5×105 m/?g, and in it the surface area of the aggregates or parts thereof is occupied by chemically bound silyl groups. A thermal insulant comprises the silicon dioxide powder and/or the silanized silicon dioxide powder.

Abstract: The present application relates to organosilicones and compositions such as consumer products comprising such organosilicones, as well as processes for making and using such organosilicones and such compositions. Such compositions comprising such organosilicones are easier to formulate, and provide more economical and superior care benefits when compared to current silicone containing compositions.

Abstract: A method of forming a coating comprising the steps of dissolving an silsesquioxane (e.g., one that is primarily a cage compound with 8, 10, 12, 14 or related complete cages or with partially condensed cages containing primarily Si(O)4 units in the cage) in a solvent to form an silsesquioxane solution; introducing (e.g., dissolving) an additive in the solution (e.g., the additive being selected from a rare earth compound, an acid, an organic moiety, a precious metal or compound thereof, a transition metal compound, or any combination thereof, or any of their ionic constituents); and optionally mixing a diluent with the solution to form a coating that is applied to a substrate, wherein the resulting coating forms crosslinks between resulting pendant Si(OH)x groups and a substrate surface. The present invention also contemplates coatings and coated articles consistent with the present teachings.

Abstract: Branched polysiloxanes of formula (I) Ma1MHa2MVia3Db1DHb2DVib3Tc1THc2TVic3Qd??(I) wherein M=[R2R12SiO1/2], MH=[R12HSiO1/2], MVi=[R3R12SiO1/2], D=[R12SiO2/2], DH=[R1HSiO2/2], DVi=[R1R3SiO2/2], T=[R4SiO3/2], TH=[HSiO3/2], TVi=[R3SiO3/2], Q=[SiO4/2], R1 is mutually independently identical or different, linear or branched, saturated or unsaturated hydrocarbon moieties, R2 is mutually independently the same as R1, an alkoxy moiety or a hydroxy group, R3 is mutually independently identical or different, linear or branched, olefinically unsaturated hydrocarbon moieties, R4 is mutually independently R1 or identical or different linear, branched and/or cyclic, saturated or unsaturated hydrocarbon moieties comprising heteroatoms, a1=from 0 to 50, a2=from 1 to 50, a3=from 1 to 50, b1=from 10 to 5000, b2=from 0 to 30, b3=from 0 to 30, c1=from 0 to 50, c2=from 0 to 50 c3=from 0 to 50, d=from 0 to 50, with the proviso that the sum c1+c2+c3+d is greater than or equal to 1, are provided.

Abstract: The present invention has the objects to provide a novel material for forming Si-containing film, especially a material containing a cyclic siloxane compound suitable to a PECVD equipment for low dielectric constant insulating film, and to provide an Si-containing film using the same, and a semiconductor device containing those films. The present invention relates to a material for forming Si-containing film, containing a cyclic siloxane compound represented by the following general formula (1) (In the formula, A represents a group containing at least one selected from the group consisting of an oxygen atom, a boron atom and a nitrogen atom, n is 1 or 2, and x is an integer of from 2 to 10.), and its use.

Abstract: The moisture and gas barrier properties of an organopolysiloxane having at least two substituents which are able to undergo crosslinking reactions per molecule shall be improved. This is achieved by providing an organopolysiloxane wherein at least 10 mol % of all substituents are represented by formula (1) wherein q is an integer from 0 to 5 and R1, R2, R3 each independently are methyl or ethyl groups. Furthermore, the invention is directed to a composition based on the aforementioned organopolysiloxane and to the use of the organopolysiloxane and of the composition.

Abstract: Disclosed in a mold release composition comprising a fluorosilicone compound of the formula (I): (I) wherein R1, R2, R4, R5, R6, R7, R8 and R9 each is, the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, R3 and R10 each is; the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or Rf—X—, or Z—Y— in which X and Y each is; the same or different, a divalent organic group, Rf is a C1-6 fluoroalkyl group, Z is a silyl group containing a hydrolyzable site, m is 1-100, n is 1-50, and o is 0-200. The mold release composition can give excellent mold releasability and durability of mold releasability (repeated mold releasability).

Abstract: A method of lipid assay characterized by assaying the lipids contained in a blood component in the presence of an organic silicon compound. The method can cause specific conditions for direct methods while satisfying requirements such as no influence on precision of assay, no burden on assay apparatus, and easy availability.

Abstract: A method of preparing a trihalosilane comprising the separate and consecutive steps of (i) contacting a copper catalyst with hydrogen gas and a silicon tetrahalide at a temperature of from 500 to 1400° C. to form a silicon-containing copper catalyst comprising at least 0.1% (w/w) of silicon, wherein the copper catalyst comprises a metal selected from copper and a mixture comprising copper and at least one element selected from gold, magnesium, and platinum; and (ii) contacting the silicon-containing copper catalyst with a hydrogen halide at a temperature of from 100 to 600° C. to form a trihalosilane.

Abstract: Disclosed herein is the use of manganese, iron, cobalt, or nickel complexes containing tridentate pyridine di-imine ligands as hydrosilylation catalysts. These complexes are effective for efficiently catalyzing hydrosilylation reactions, as well as offering improved selectivity and yield over existing catalyst systems.

Abstract: The invention relates to a method for preparing silica modified by a silane coupling agent. The method comprises the following steps: preparing a kind of coupling agent sol solution by mixing the solvent, water, catalyst and coupling agent; uniformly dispersing silica into the sol solution by means of ultrasonic dispersion or shear dispersion to achieve a turbid solution with uniform dispersion and ideal particle size; and then stirring the turbid solution at a constant speed to make the coupling agent sol reacting with silica to prepare highly hydrophobic silica modified by the coupling agent through controlling the temperature and reaction time. The coupling agent sol solution is obtained by a sol-gel process and silica is uniformly dispersed in the coupling agent sol solution through combined action of various dynamic means to ensure the sufficient reaction between silica and coupling agent, thus to obtain silica modified by the coupling agent.

Abstract: Disclosed herein are the compounds shown below. Each R is an organic group, Cb is a carborane group, and —C6H4— is phenylene. The value of each m is a nonnegative integer, q is 0 or 1, with the proviso that if q is 0 then m is 0 or 1, p is a positive integer, r is a positive integer, and n is an integer greater than or equal to 10. Also disclosed are methods of making and crosslinking the compounds.

Abstract: Organosilicon compounds are prepared by the addition reaction of a gaseous unsaturated hydrocarbon with a silane or siloxane containing at least one silicon-bonded hydrogen atom in the presence of a hydrosilylation catalyst in a liquid reaction medium. In this process the unsaturated hydrocarbon and optionally the silane or siloxane is dispersed into the liquid reaction medium by a jet eductor (also known as a venturi pump) device and the resultant gas-in-liquid dispersion is introduced into a bubble reactor.

Abstract: The invention provides structurally modified, pyrogenically prepared silicas obtained by reaction of pyrogenic silicas with cyclic polysiloxanes of the type —[O—Si(R2)]n—, where R is a C1 to C6 alkyl group and n is 3 to 9, and subsequent structural modification of the silanized silicas obtained. The invention further provides an adhesive comprising the structurally modified, pyrogenically prepared silicas.

Abstract: An asymmetric organomodified disiloxane surfactant having the formula: MM? wherein M comprises branched hydrocarbon substituents and M? comprises a cationic, anionic or zwitterionic substituent and a polyether substituent that may be combined as one moiety, wherein the disiloxane surfactant has an enhanced resistance to hydrolysis between a pH of about 3 to about 12.

Abstract: Siloxane-based coatings for providing writable-erasable surfaces are provided. The coatings have many desirable characteristics and advantages over known coatings for writable-erasable surfaces. For example, the coatings cure rapidly under ambient conditions, have low VOC emissions upon curing, and have reduced tendency to form ghost images, even after prolonged normal use.

Abstract: To provide a phenyl-containing organopolysiloxane composition that has a high index of refraction of the entire composition and compounding stability in cosmetic formulation, excellent handling performance, and possibility of adjusting viscosity. Another objective is to provide a cosmetic raw material comprising the composition, and a cosmetic material. The invention is a phenyl-containing organopolysiloxane composition that has an index of refraction of the entire composition that is equal to or greater than 1.50 and that has a viscosity of the entire composition at 25° C. in the range of 200 to 500,000 mPa·s.

Abstract: Organosilicon compounds bearing silicon-bonded organyloxy groups are prepared by mixing and reacting silanol-functional organosilicon compounds with organosilicon compounds containing at least two organyloxy groups in a mixer with an energy input of at least 0.2 kW/Kg of mixture. At this level of energy input, reaction to form the organyloxy-functional product is rapid, and can be achieved without supplying external heat, and also without catalysts, if desired.

Abstract: A method for manufacturing a disordered porous silicon dioxide material including applying a fatty alcohol polyoxyethylene ether as an additive. The fatty alcohol polyoxyethylene ether has a formula of RO—(CH2CH2O)n—H, R is C8-24H17-49, and n=9-30.