Abstract: The cosmetic compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.

Abstract: Optoelectronic devices include polysiloxanes derived from hydrosilation of an organometallic compound of formula L2MZ, wherein L and Z are independently bidentate ligands; at least one of L and Z comprises alkenyl, alkenylaryl, alkenyloxy, alkenyloxyaryl, alkynyl, alkynylaryl, alkynyloxy, alkynyloxyaryl, substituted alkenyl, substituted alkenylaryl, substituted alkenyloxy, substituted alkenyloxyaryl, substituted alkynyl, substituted alkynylaryl, substituted alkynyloxy, substituted alkynyloxyaryl, acrylate, methacrylate, or a combination thereof; and M is Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Ga, Ge, In, Sn, Sb, Tl, Pd, Bi, Po, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu.

Abstract: The invention relates to a process for the preparation of branched siloxanes containing R—SiO3/2 units, where R=organic radical, wherein straight-chain polysiloxanes containing silane hydrogen in the polymer chain are reacted in the presence of ammonium or metal carboxylates as a catalyst in the absence of hydroxy-functional organic compounds, and to siloxanes thus prepared and the use thereof in the preparation of polyurethane foams and antifoam formulations.

Abstract: Provided is a silicone gel composition including (A) an organopolysiloxane containing at least one alkenyl group bonded to a silicon atom within each molecule, represented by an average composition formula: RaR1bSiO(4-a-b)/2 (wherein, each R group represents, independently, an alkenyl group, each R1 group represents, independently, an unsubstituted or substituted monovalent hydrocarbon group that contains no aliphatic unsaturated bonds, a represents a positive number from 0.0001 to 0.2, b represents a positive number from 1.7 to 2.2, and a+b represents a number within a range from 1.9 to 2.4), (B) an organohydrogenpolysiloxane containing at least two hydrogen atoms bonded to silicon atoms within each molecule, and (C) a platinum-based catalyst. Also provided is the silicone gel composition stated above, in which a penetration value of a cured product of this composition, as defined in JIS K2220, is within a range from 20 to 200.

Abstract: The present invention has an object to provide a polysiloxane which is a liquid substance having low viscosity, is excellent in curing workability, and has excellent heat resistance in an obtained cured material, and to a production method of a cured material using the polysiloxane. Specifically disclosed is a polysiloxane which is obtained by hydrolysis and polycondensation of a silicon compound having three hydrolyzable groups, a silicon compound having two hydrolyzable groups and a silicon compound having one hydrolyzable group, and is characterized by containing a hydrosilylatable carbon-carbon unsaturated group, a hydrosilyl group and an alkoxysilyl group, and having a number average molecular weight of 500 to 20,000.

Abstract: The invention relates to a process for the preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers having (AB) repeat units, via reaction of one or more polyetherdiols with a stoichiometric excess of ?,?-dihydropolydimethylsiloxanes and at least one tertiary amine as catalyst, which comprises, after completed reaction of the alcohol component, continuing the reaction in the presence of small amounts of water until no remaining ?Si(H) groups are detectable by a gas-volumetric method.

Abstract: A light filter or an array of filters can be either one or two dimensional. The filter or filters use multiple beam interference by varying an optical path length between semi-reflective surfaces. The optical path length between the semi-reflective surfaces is varied by changing a thickness of a polymer film in response to an electric field formed between two semi-transparent electrodes. The filter can be configured in either a transmissive or reflective mode.

Abstract: Siloxane resins containing both polyoxyalkylene M siloxy units and alkyl functional M and T siloxy units and aqueous compositions thereof are disclosed. The aqueous compositions contain dispersed particles stabilized by the siloxane resin, and are useful for the entrapment and delivery of various personal, household, and medical care actives.

Abstract: A glue for packaging a light emitting diode (LED) is described and includes a first set of compositions and a second set of compositions mixed based on a predetermined weight ratio. The first set of compositions is poly(dimethyl siloxane), and the second set of compositions includes a copolymer of dimethyl siloxane, methyl hydrogen siloxane, and vinyl siloxane. The copolymer in the second set of compositions has a weight percentage from about 94% to 99%, dimethyl siloxane in the copolymer has a weight percentage from about 84% to 90%, methyl hydrogen siloxane in the copolymer has a weight percentage from about 4% to 9%, and vinyl siloxane in the copolymer has a weight percentage from about 2% to 7%. A use of the glue for packaging a LED is also described.

Abstract: The invention relates to new alkoxyamines suitable for hydrosilylation reactions, to siloxane modified alkoxamines and to siloxane modified polymers as well as to their use. The alkoxamines are compounds of formula (I) or (II) wherein A is a group capable of forming a stable free nitroxyl radical A. which is bound via its oxygen atom to the carbon atom; R.sub.1 and R.sub.2 independently of one another are hydrogen, C.sub.1-C.sub.18-alkyl, C.sub.3-C.sub.8cycloalkyl or phenyl which are unsubstituted or substituted by NO.sub.2, halogen, amino, hydroxy, cyano, carboxy, C.sub.1-C.sub.4alkoxy, C.sub.1-C.sub.4alkylthio, C.sub.1-C.sub.4alkylamino or di(C.sub.1-C.sub.4alkyl)amino; R.sub.3, R.sub.4 and R.sub.5 independently of one another are hydrogen or C.sub.1-C.sub.18alkyl or phenyl; or R.sub.3 and R.sub.5 together with the linking group C.dbd.C form a 5 to 12 membered ring; R.sub.6 is X hydrogen or C.sub.1-C.sub.l8alkyl or phenyl; X is O, NH or NR.sub.7, wherein R.sub.7 is C.sub.1-C.sub.18alkyl, C.sub.3-C.sub.

Abstract: The invention provides a method of preparing hydrophobic silica particles comprising (a) providing an aqueous colloidal silica dispersion comprising about 5-70 wt. % of silica particles having an average overall particle size of about 10-1000 nm, wherein the silica particles comprise surface silanol groups, (b) combining the silica dispersion with about 3-75 ?mole/m2 (based on the BET surface area of the silica) of a silyl amine treating agent and optionally with other ingredients to provide a reaction mixture, wherein the reaction mixture has a pH of about 7 or more, and comprises no more than about 50 wt. % of an organic solvent, and (c) drying the dispersion to provide hydrophobic silica particles. The invention further provides a method of preparing a toner composition comprising combining the hydrophobic silica particles as recited above with toner particles to provide a toner composition.

Abstract: This invention relates to a novel class of Dimer Alkyl Silicone Polymers (DASP) and their use to reduce surface tension of lubrication oil. The improved lubricant composition based upon a very specific class of dimer alkyl silicone polymers (DASP) that despite their solubility in oil lower surface tension and improve lubrication when added at low concentrations to lubricating oils.

Abstract: A silicon polymer material, which has a silicon polymer backbone with chromophore groups attached directly to at least a part of the silicon atoms, the polymer further exhibiting carbosilane bonds. The film forming composition and resulting coating properties can be tailored to suit the specific exposure wavelength and device fabrication and design requirements. By using two different chromophores the refractive index and the absorption co-efficient can be efficiently tuned. By varying the proportion of carbosilane bonds, and a desired Si-content of the anti-reflective coating composition can be obtained.

Abstract: The invention provides a process for preparing branched SiH-functional siloxanes by converting a mixture of one or more low molecular weight SiH-functional siloxanes, one or more low molecular weight SiH-free siloxanes and one or more trialkoxysilanes with addition of water and in the presence of at least one Brønsted-acidic catalyst, which is characterized in that the reaction is performed in one process step.

Abstract: A novel organosilicon polymer, the main chain of which is composed of siloxane units and silalkylene units and to which are bonded organic groups with amide bonds linked to silicon atoms of the molecule.

Abstract: The invention provides a process for preparing an overvoltage protection material comprising: (i) preparing a mixture comprising a polymer binder precursor and a conductive material; and (ii) heating the mixture to cause reaction of the polymer binder precursor and generate a polymer matrix having conductive material dispersed therein, wherein the polymer binder precursor is chosen such that substantially no solvent is generated during the reaction.

Abstract: A method for the adhesion of a layer of fluorosilicone rubber which is curable using a non-hydrosilylation curing process to a layer of silicone rubber which contains substantially no perfluoroalkyl groups and which is curable using a non-hydrosilylation curing processes described. The comprises the steps incorporating either a hydrosilylation catalyst or a siloxane containing at least two silicon bonded hydrogen groups into the fluorosilicone rubber composition prior to curing and incorporating the other of the hydrosilylation catalyst or the siloxane containing at least two silicon bonded hydrogen groups into the alternative silicone rubber composition prior to curing; forming the products of step (i) and step (ii) into required shapes; bringing the shaped products of step (iii) into contact with each other; and adhering the shaped products in contact with each other together by effecting a hydrosilylation reaction therebetween.

Abstract: A silicone-based pressure-sensitive adhesive comprising: (A) a mixture or a product of partial condensation of (a) a raw rubberlike organopolysiloxane having an average of at least one alkenyl group per molecule and (b) an organopolysiloxane resin consisting essentially of R13SiO1/2 units and SiO4/2 units; (B) an organopolysiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule; (C) a phenol-type oxidation inhibitor and/or a phenol-modified organosiloxane; (D) an aromatic amino-type oxidation inhibitor and/or aromatic amino-modified organosiloxane; and (E) a platinum-based catalyst, can form a pressure-sensitive adhesive layer that maintains good removability after being exposed to high temperatures.

Abstract: A silicon-containing curable composition, comprising: a prepolymer (A) containing two or more Si—H groups per molecule obtained by hydrosilylation reaction of one kind or more selected from each of components (?) and components (?) described below; a cyclic siloxane compound (B) containing per molecule two or more carbon-carbon double bonds that have reactivity to the Si—H groups; and a hydrosilylation catalyst (C); wherein the component (?) is a cyclic siloxane compound represented by formula (1) and contains two or more Si—H groups per molecule, wherein R1, R2 and R3 each are an alkyl group having 1 to 6 carbon atoms or a phenyl group, may be the same or different, a is any number of 2 to 10, b is any number of 0 to 8, and a+b?2, and wherein the component (?) is a compound containing per molecule two or more carbon-carbon double bonds that have reactivity to the Si—H groups.

Abstract: A method of preparing a reinforced silicone resin film, the method comprising the steps of impregnating a fiber reinforcement in a hydrosilylation-curable silicone composition comprising a silicone resin and a photoactivated hydrosilylation catalyst; and exposing the impregnated fiber reinforcement to radiation having a wavelength of from 150 to 800 nm at a dosage sufficient to cure the silicone resin; wherein the reinforced silicone resin film comprises from 10 to 99% (w/w) of the cured silicone resin and the film has a thickness of from 15 to 500 ?m; and a reinforced silicone resin film prepared according to the method.

Abstract: An organopolysiloxane represented by the following general formula (A), (B) or(C) SinR12n+2On?1??(A) SinR12nOn??(B) SinR12n+2R2kOn?k??(C) wherein R1 may be the same with or different from each other and is a hydrogen atom or a monovalent organic group, R2 is an alkylene group having 2 to 6 carbon atoms, n is an integer of from 2 to 40 and k is an integer of 1 to 3, characterized in that at least two R1's are represented by the following formula (i): wherein X is a hydrolyzable group, R3 is an alkyl group having 1 to 4 carbon atoms or a phenyl group, y is an integer of from 1 to 5 and a is 2 or 3; and one SiOSi bond is replaced with a bond represented by the following formula (iii): SiQRf2QSi??(iii) wherein Rf1 is a monovalent group containing a perfluoroether residue, Rf2 is a divalent group containing a perfluoroether residue, and Q is a divalent organic group.

Abstract: The invention relates to a method for printing a fluid material using a continuous jet printing technique, wherein the material is passed under pressure from a reservoir through a channel to at least one outflow opening of the channel, after which the material is passed through the outflow opening, whereby the pressure in at least a part of the channel upstream of the outflow opening is in the interval of 15-600 bars [?15·105 to 600·105 Pa], and whereby the fluid material comprises a curable composition which comprises: a) a component A in an amount in the range of from 1-15 wt % which component A has a dielectric constant larger than 15 (at 0° C.); b) an ionically dissolved lipophilic salt in an amount in the range of from 1-15 wt %, c) optionally (a) coating additive(s) in an amount of at most 10 wt %, and d) for the remaining part a liquid component B which comprises a curable monomer and/or a curable oligomer, which liquid component B has a low shear viscosity (at 22° C.

Abstract: The present invention relates to a series of crosslinked silicone polymers that by virtue of the nature of the dimol alcohol undecylenic acid ester based crosslinker, have unique solubility and properties. These include improved tolerance for oily materials and improved skin feel. These polymers find use in personal care applications like pigmented products. In the personal care arena, solid products that do not experience syneresis are important. Syneresis is a condition that exists in a solid product that causes a liquid that is incompatible to ooze out, which is cosmetically unacceptable.

Abstract: A photo-curable resin composition comprising a silphenylene-bearing polymer having a Mw of 3,000-500,000 can be processed to form patterned films having a widely varying thickness from submicron to more than 20 ?m. The cured films have good adhesion to substrates, heat resistance, electrical insulation and chemical resistance.

Abstract: The present invention relates to substances, crosslinkable by attachment of an Si-bonded hydrogen atom to an aliphatic multiple bond, which comprise at least one compound of the formula R3P(O) (OH)2??(III) and/or the derivatives thereof, R3 being an optionally substituted hydrocarbon radical which can be interrupted by heteroatoms.

Abstract: A light-shielding paste which contains a thermoplastic resin and an inorganic member as essential components or which contains a thermosetting resin and an inorganic member as essential components is provided. A curable composition and light-shielding paste comprising the composition are provided which contains, as essential components, (A) an organic compound comprising an organic main chain containing at least two carbon-carbon double bonds reactive with a SiH group in each molecule, (B) a silicon compound having at least two SiH groups in each molecule, (C) a hydrosilylation catalyst, (D) a silane coupling agent and/or an epoxy group-containing compound, (E) a silanol condensation catalyst, and (F) an inorganic member. The curable composition can further contain (G) silica. Also provided is a method of forming a light-shielding resin layer on a LED package having an aperture comprising a bottom and sidewalls. The curable composition is excellent in light-shielding ability.

Abstract: The present invention is directed to a group of silicone polyesters and a process for making them by reacting a specific carboxy silicone and a hydroxy silicone to make a surprisingly organic soluble, more biodegradable film forming resin. Additionally, the invention discloses a process for applying pigment to a substrate including skin, metal or glass, which comprises contacting the skin with a dispersion of pigment, a volatile solvent, and the resin disclosed.

Abstract: A silicone rubber powder obtained by curing a condensation-curable silicone rubber composition in a dispersed state in water, having an epoxy equivalent measured by a titration method equal to or lower than 3,000 and an average particle size in the range of 0.1 to 100 ?m; and a method of manufacturing a silicone rubber powder comprising the steps of dispersing in water a silicone rubber composition comprising at least components (A) through (C) listed below; adding component (D); and curing the mixture: (A) a diorganopolysiloxane capped at both molecular terminals with silanol groups and having in one molecule 30 or less silicon atoms; (B) an organopolysiloxane having in one molecule at least two silicon-bonded hydrogen atoms; (C) an epoxy-containing alkoxysilane; and (D) a condensation-reaction catalyst. The silicone rubber powder has low epoxy equivalent and possesses excellent dispersibility in organic resins, and the method is efficient in manufacturing of the aforementioned powder.

Abstract: Silicone based liquid crystal and vesicles are prepared by first reacting (A) an ?Si—H containing polysiloxane, (B) a mono-alkenyl polyether, in the presence of a platinum catalyst until an ?Si—H containing polysiloxane with polyether groups (C) is formed. The ?Si—H containing polysiloxane with polyether groups (C) is then reacted with (D) an unsaturated hydrocarbon such as an ?,?-dienes, and (E) water, in the presence of a platinum catalyst until the silicone based liquid crystal or vesicle is formed. The silicone based liquid crystal or vesicle can also be heated until a hard liquid crystal gel or vesicle paste are formed.

Abstract: A microcontact printing stamp is formed by curing a silicone rubber composition on a master. An addition reaction cure silicone rubber composition is used comprising (A) an organopolysiloxane containing at least two aliphatic unsaturated monovalent hydrocarbon groups, (B) an organohydrogenpolysiloxane containing at least two SiH groups, (C) an addition reaction catalyst, and (D) a reinforcing resin. The cured composition has a nonfunctional low-molecular-weight siloxane D3-D20 content of up to 200 ppm.

Abstract: The present disclosure relates to a method of preparing polysilazane and a polysilazane solution which can minimize substitution of an Si—H bond of a starting compound by ammonia. Particularly, a method of synthesizing polysilazane using a solution which undergoes phase separation and a method of preparing a polysilazane solution for a wafer are disclosed. The method of preparing polysilazane using halosilane and liquid anhydrous ammonia includes adding liquid anhydrous ammonia to a solvent in a weight ratio of 0.5:1 to 10:1, followed by stirring to prepare a mixture solution, and allowing pseudo-ammonolysis to be carried out by adding halosilane to the mixture solution separated into two phases.

Abstract: The outer surface of a wide-gap semiconductor device is coated with a synthetic polymer compound containing one or more silicon-containing polymer having a bridged structure formed by a siloxane (Si—O—Si bond structure). The synthetic polymer compound may include, for example, a silicon-containing polymer which has one or more reactive groups (A?) selected from Si—R1, Si—O—R2 and Si—R3—OCOC(R4)?CH2, has a bridged structure formed by an Si—O—Si bond in one or more locations, and contains components having weight average molecular weights of not more than 1000 in an amount of 20% or less by weight.

Abstract: There is provided silicone gel-forming composition comprising a unique combination of polyorganosiloxane and organohydrogenpolysiloxane, which can produce silicone gel with improved hysteresis.

Abstract: The present invention is to provide a polymerizable compound which can be a raw material for a resin having high transparency, good heat resistance and mechanical strength required for optical components such as plastic lenses and the like, while attaining a high refractive index (nd) exceeding 1.7, and an optical component composed of such a resin. Disclosed is a compound represented by the general formula (3), wherein, in the formula, M represents a metal atom; X1 and X2 each independently represent a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or more; p represents an integer of from 1 to n; q represents an integer of from 1 to (n-p); n represents a valence of a metal atom M; Yq each independently represent an inorganic or organic residue; and when q is 2 or more, Yq may be bonded to one another for forming a ring structure with the intermediary of a metal atom M.

Abstract: The object of the present invention is to provide a method for producing an organic polymer having a terminal trimethoxy silyl group. In the method, the exchange reaction into a methoxy group can proceed within a short time even with a small amount of a catalyst, and viscosity increase caused by a side reaction during the methoxy exchange reaction can be reduced. Obtained polymer has an excellent stability, and viscosity increase during the storage of the polymer after the exchange into a trimethoxysilyl group can be reduced.

Abstract: A curable organopolysiloxane composition capable of forming cured products of superior optical transmittance exhibiting little heat-induced yellowing over time. A semiconductor device having semiconductor elements encapsulated in a cured product of the composition. The composition includes (A) an organopolysiloxane having at least two silicon-bonded alkenyl groups per molecule and bearing silicon-bonded aryl groups, whose content relative to all silicon-bonded organic groups is not less than 40 mol %, (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (C) an organosiloxane oligomer complex of platinum, where the oligomer has not more than eight silicon atoms per molecule and bears silicon-bonded alkenyl groups and silicon-bonded aryl groups.

Abstract: A silicone emulsion composition for wood treatment is prepared by emulsifying and dispersing (A) an organopolysiloxane having at least two SiH groups, (B) a surfactant, and (C) a curing catalyst in water to form a silicone emulsion, and adding (D) a boron compound to the silicone emulsion.

Abstract: The present invention provides a process for producing a polysilsesquioxane graft polymer (1) which includes applying ionizing radiation or heat to a mixture including a polysilsesquioxane compound (2) and a vinyl compound (3), a polysilsesquioxane compound including an iniferter group, and a pressure-sensitive adhesive and a pressure-sensitive adhesive sheet using the polymer. According to the present invention, a process for producing a polysilsesquioxane graft polymer which may be used as a pressure-sensitive adhesive exhibiting excellent heat resistance and cohesive force, and the like are provided. In the formula, A represents a linking group, R1 represents a hydrocarbon group which may have a substituent, R2 represents a hydrogen atom or the like, R3 represents a polar group or the like, R4 represents a hydrogen atom or the like, k1 to k3 represent arbitrary positive integers, 1 to n represent zero or an arbitrary positive integer (excluding the case where “m=n=0”), and Q represents an iniferter group.

Abstract: The object of the present invention is to provide antifoams which have a good antifoam effect in aqueous dispersions of polymeric organic substances, cause no wetting defects when these dispersions are applied to a surface and at the same time retain their antifoam activity even after prolonged storage at temperatures down to the freezing point.

Abstract: A silicon-containing compound of formula (1), and a curing composition containing a silicon-containing compound of formula (1) wherein Z is hydrogen, a silicon-containing compound of formula (1) wherein Z is C2-C4 alkenyl or alkynyl and a hydrosilylation catalyst. The composition has excellent handling and curing properties and provides a cured product with excellent heat resistance and flexibility. In formula (1), Ra—Rg=C1-C12 saturated aliphatic hydrocarbon group or C6-C12 aromatic hydrocarbon group. Re and Rf do not simultaneously represent C1-C12 saturated aliphatic hydrocarbon group; Y?C2-C4 alkylene; Z=hydrogen or C2-C4 alkenyl or alkynyl; K is 2-7; T is 1-7; P is 0-3; and M and N are numbers selected such that N:M=1:1 to 1:100, that all M's and N's total at least 15, and that the mass average molecular weight of the compound of formula (1) is 3,000 to 1,000,000.

Abstract: Process for preparing catalyst assemblies by mixing a metal catalyst capable of catalyzing a hydrosilylation reaction and an organophosphorus inhibitor of the formula (I) or of formula (VIII) P(OR)3, either by mixing the inhibitor into a solution of catalyst in an unsaturated silane or siloxane or by mixing the inhibitor into a gum or oil at a temperature greater than the melting temperature or softening temperature of the organophosphorus compound, then mixing the catalyst. Catalyst assemblies, process for preparing one-component silicone compositions, and resultant compositions.

Abstract: A polymer for gap-filling in a semiconductor device, the polymer being prepared by polycondensation of hydrolysates of the compound represented by Formula 1, the compound represented by Formula 2, and one or more compounds represented by Formulae 3 and 4: [RO]3Si—[CH2]n—Si[OR]3??(1) wherein n is from 0 to 2 and each R is independently a C1-C6 alkyl group; [RO]3Si—[CH2]nX??(2) wherein X is a C6-C12 aryl group, n is from 0 to 2, and R is a C1-C6 alkyl group; [RO]3Si—R???(3) wherein R and R? are independently a C1-C6 alkyl group; and [RO]3Si—H??(4) wherein R is a C1-C6 alkyl group.

Abstract: A curable organopolysiloxane composition is provided, which includes (A) an organopolysiloxane containing at least one silicon atom-bonded alkenyl group within each molecule, (B) an organohydrogenpolysiloxane, which contains, within each molecule, at least one silicon atom-bonded hydrogen atom at a molecular chain terminal, and at least two silicon atom-bonded hydrogen atoms at non-terminal positions within the molecular chain, and which satisfies the formula shown below: 0<?/?0.25 (wherein, ? represents the number of silicon atom-bonded hydrogen atoms at non-terminal positions within the molecular chain, and ? represents the total number of silicon atoms within the component (B)), in sufficient quantity to provide from 0.1 to 5 silicon atom-bonded hydrogen atoms per silicon atom-bonded alkenyl group within the component (A), and (C) a platinum-based catalyst.

Abstract: A heat conductive silicone composition is provided, which includes (A) an organopolysiloxane having the formula (1): {(CH2?CH)R12SiO1/2}L(R1SiO3/2)m(R12SiO)n{O1/2SiR12—R2—SiR1(3-a)(OR3)a}o??(1) wherein R1 represents monovalent hydrocarbon groups, R2 represents an oxygen atom or a bivalent hydrocarbon group, R3 represents an alkyl group, alkoxyalkyl group, alkenyl group, or acyl group, L and o represent numbers from 1 to 10, m represents a number from 0 to 10, n represents a number from 5 to 100, a represents an integer from 1 to 3, and when m=0, L+o=2 and R2 is a bivalent hydrocarbon group, (B) a heat conductive filler, and (C) an organopolysiloxane other than the component (A). Even upon high-level packing with the heat conductive filler to obtain a highly heat conductivity, the composition still exhibits favorable handling and moldability properties.

Abstract: A colorless transparent silicone lens produced by thermally curing a silicone resin composition comprising (A) an organopolysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3aR4bSiO(4-a-b)/2 unit wherein R1, R2, and R3 are independently methyl group, ethyl group, propyl group, cyclohexyl group, or phenyl group, R4 is vinyl group or allyl group, a is 0, 1, or 2, b is 1 or 2, and a+b is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, (B) an organohydrogen polysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3cHdSiO(4-c-d)/2 unit wherein c is 0, 1, or 2, d is 1 or 2, and c+d is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, the component, and (C) a platinum group catalyst. A silicone lens having excellent flexibility, transparency, and moldability as well as reduced surface tackiness is provided.

Abstract: A process is provided for producing curable polyorganosiloxanes where noble metal oxides are used as hydrosilylation catalysts. The noble metals can be used in solid granular form or as part of a fixed bed, and do not form part of the final curable composition or cured product. The cured polyorganosiloxanes have increased stability and can be used as encapsulation resins at a temperature far lower than 300° C., have excellent light transmission properties (colorless transparency) in a wavelength region of from ultraviolet light to visible light, light resistance, heat resistance, resistance to moist heat and UV resistance, and do not generate cracks and peeling even in use over a long period of time.

Abstract: A green product for use in fabricating a ceramic article comprises a ceramic powder immobilized within a silicone matrix, wherein the silicone matrix comprises one or more cross linked or polymerized silicone monomers and/or oligomers, wherein the one or more cross linked or polymerized silicone monomers and/or oligomers have a alkenyl reactive functional group and a hydride reactive functional group. Processes for forming a green product and a ceramic core with the silicone monomers and/or oligomers are also disclosed.

Abstract: Compositions which comprise aminofunctional polyorganosiloxanes and additionally polyorganosiloxanes are described which can be prepared by reacting polysiloxanes with Si—H bonds (H-siloxanes) and specific compounds with carbon—carbon multiple bonds. The last-mentioned compounds comprise acrylate units. The compositions are suitable for the treatment of fabrics, to which advantageous properties are hereby imparted.

Abstract: A silicone rubber emulsion composition comprising (A) 100 parts diorganopolysiloxane having at least two silicon-bonded alkenyl groups, (E) 0 to 60 parts reinforcing silica filler, (B) 10 to 250 parts water containing a smectite clay, (C) 0.1 to 15 parts emulsifier, and (D) a cross-linking agent (e.g., an organohydrogenpolysiloxane) in an amount sufficient for cross-linking component (A) and a catalyst (e.g., a platinum-type catalyst). A method for preparing the aforementioned emulsion composition comprising mixing components (A) and (E) with other components in a high-speed stirrer-equipped mixer. A method of manufacturing a silicone rubber comprising either heating and dehydrating the aforementioned emulsion composition.

Abstract: A method for producing a polymer for semiconductor optoelectronics, comprising the steps of providing a monomer is produced having the formula: wherein: R1 is a hydrolysable group R2 is hydrogen, and R3 is a bridging linear or branched bivalent hydrocarbyl group, said monomer being produced by hydrosilylation of the corresponding starting materials, and homo- or copolymerizing the monomer to produce a polymer.