Abstract: A composition is disclosed, which comprises (I) an aryl component; (II) a methyl component; and (III) a hydrosilylation catalyst. The (I) aryl component comprises (A) an organopolysiloxane and (B) an organohydrogenpolysiloxane. Similarly, the (II) methyl component comprises (A) an organopolysiloxane and (B) an organohydrogenpolysiloxane. A method of preparing the composition is also disclosed. Further, a method of preparing an article, e.g. a light diffuser, and a lighting device comprising the light diffuser are disclosed. Finally, a method of diffusely transmitting light with the light diffuser is disclosed.

Abstract: The present invention relates to a perfluoropolyether group-containing silane compound represented by formula (1): Rf—X1—X2—NQkT2-k, (1), and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (2), and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (3), and a method for preparing the same. The perfluoropolyether group-containing silane compound of the present invention can be used for a surface treatment agent so that the substrates such as glass etc processed by the surface treatment agent are excellent in anti-fouling, anti-fingerprint, scrape resistant and abrasion resistant performances. Moreover, the preparation method of each of the compounds of the present invention is simple in process, easy to operate and implement.

Abstract: Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

Abstract: The present invention relates to a thermally conductive polysiloxane composition that provides a cured product having excellent tackiness and flexibility in which the composition contains (A) a thermally conductive filler, (B) a siloxane compound having an alkoxysilyl group and a linear siloxane structure, (C) a polyorganosiloxane having at least two alkenyl groups bonded to silicon atoms per molecule, (D1) a linear polyorganohydrogensiloxane represented by the general formula (4), (D2) a polyorganohydrogensiloxane having per molecule at least three units represented by the general formula (5), and (E) a platinum catalyst.

Abstract: Bisaminoalkoxysilanes of Formula I, and methods using same, are described herein: R1Si(NR2R3)(NR4R5)OR6??I where R1 is selected from hydrogen, a C1 to C10 linear alkyl group, a C3 to C10 branched alkyl group, a C3 to C10 cyclic alkyl group, a C3 to C10 alkenyl group, a C3 to C10 alkynyl group, a C4 to C10 aromatic hydrocarbon group; R2, R3, R4, and R5 are each independently selected from hydrogen, a C4 to C10 branched alkyl group, a C3 to C10 cyclic alkyl group, a C3 to C10 alkenyl group, a C3 to C10 alkynyl group, and a C4 to C10 aromatic hydrocarbon group; R6 is selected from a C1 to C10 linear alkyl group, a C3 to C10 branched alkyl group, a C3 to C10 cyclic alkyl group, a C3 to C10 alkenyl group, a C2 to C10 alkynyl group, and a C4 to C10 aromatic hydrocarbon group.

Abstract: Liquid chromatography systems and liquid chromatography components are disclosed. In an embodiment, a liquid chromatography system includes a liquid chromatography component. The liquid chromatography component includes a substrate and an amorphous coating on the substrate. The amorphous coating has a base layer and a surface layer. The base layer includes carboxysilane.

Abstract: The present invention relates to a method of producing a rubber, comprising (co)polymerizing at least one diene monomer and optionally at least one vinylaromatic monomer, and a vinyl-silicone compound, in the presence of a functionalizing lithium initiator, and modifying the obtained (co)polymer by a poly functional silicon-containing agent. The functionalizing lithium initiator is obtained by reacting an organolithium compound, a secondary amine and a diene-containing compound. In addition, the instant inventon relates to rubbers obtained by said method, rubber compositions and vulcanizates based thereon, semi-finished products and tires, comprising such a rubber. The present invention provides obtaining of rubber compositions and vulcanizates based thereon characterized by the improved complex of histeresis properties.

Abstract: The purpose of the present invention is to provide a curable resin composition which forms a cured product having excellent heat resistance, light resistance, and flexibility. The present invention provides a curable resin composition comprising the following components: (A): a polyorganosiloxane represented by the average unit formula: (SiO4/2)a1(R1SiO3/2)a2(R12SiO2/2)a3(R13SiO1/2)a4 wherein each R1 is alkyl, aryl, alkenyl, etc., a percentage of the alkyl is 50 to 98 mol %, a percentage of the aryl is 1 to 50 mol %, and a percentage of the alkenyl is 1 to 35 mol % based on the total amount of R1, and a1>0, a2>0, a3?0, a4>0, 0.01?a1/a2?10, and a1+a2+a3+a4=1; (B) a polyorganosiloxane represented by the average composition formula: R2mHnSiO[(4-m-n)/2] wherein R2 is alkyl or aryl, and 0.7?m?2.1, 0.001?n?1.5, and 0.8?m+n?3; (C): a zirconium compound; and (D): a hydrosilylation catalyst.

Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).

Abstract: Thermoplastic compositions include: (a) a thermoplastic polymer including a polycarbonate component; (b) a poly(carbonate-siloxane) copolymer; and (c) from 4 wt % to 25 wt % carbon black. The composition has a total siloxane content of from 2 wt % to 14 wt %. The thermoplastic compositions exhibit improved physical properties as compared to compositions that do not include the poly(carbonate-siloxane) copolymer, including volume resistivity, melt viscosity, impact strength, puncture impact energy and surface resistivity.

Abstract: A silicone composition includes a multiphase mixture of a low-refractive silicone having a refractive index n25D589 less than 1.45 and a high-refractive silicone having a refractive index n25D589 greater than 1.50, wherein a proportion of high-refractive silicone is 0.1 to 5.0 mass percent in relation to a total mass of high-refractive and low-refractive silicone, and the high-refractive silicone forms inclusions within the low-refractive silicone.

Abstract: A polysiloxane-polyalkylene glycol block copolymer is obtained by reacting a polysiloxane (A) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, an epoxy group, a carboxyl group, and an amino group with a polyalkylene glycol (B) having any functional group selected from a carboxylic anhydride group, a hydroxyl group, a carboxyl group, an amino group, an epoxy group, a thiol group, and an isocyanate group, wherein a content of a structure derived from the polysiloxane (A) is 20% by mass or more and 90% by mass or less with respect to 100% by mass of the polysiloxane-polyalkylene glycol block copolymer.

Abstract: A composition comprising: (A) an organopolysiloxane, (B) a filler and (C) a filler treatment agent, comprising a mixture of two organopolysiloxanes having the general formulas (I) and (II), R1R2R3Si—[(CH2)n1(Me2SiO)m1]r—[O-(Me2SiO)m3]p-(Me2Si)o(CH2)n2(Me2SiO)m2—(CH2)n3—Si(OR43)3 (I), wherein ‘Me’ is methyl group, R1, R2 and R3 are independently selected from an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms or —(OSiR7R8R9), in which R7, R8 and R9 are independently selected from an alkyl group having 1 to 4 carbon atoms, R4 is an alkyl group having 1 to 4 carbon atoms, n1, n2, m1, m3 and o are integers from 1 to 200, m2, n3, r and p are integers from 0 to 200, r and p are not 0 at the same time, (R5O)3Si—[(CH2)n1(Me2SiO)m1]r—(CH2)n4—[O-(Me2SiO)m3]p-(Me2Si)o-(CH2)n2-(Me02SiO)m2—(CH2)n3—Si(OR6)3 (II), wherein R5 and R6 are an alkyl group having 1 to 4 carbon atoms, n1, m1, m3, o and n2 are integers from 1 to 200, n3, n4, m2, r and

Abstract: Organoamino-functionalized cyclic oligosiloxanes, which have at least two silicon and two oxygen atoms as well as an organoamino group and methods for making the organoamino-functionalized cyclic oligosiloxanes are disclosed. Methods for depositing silicon and oxygen containing films using the organoamino-functionalized cyclic oligosiloxanes are also disclosed.

Abstract: A metal aprotic organosilanoxide compound of formula (I): {R1—Si(R2)(R3)—[O—Si(R4)(R5)]m—O}n-M1(?L)o(X1)p (I), wherein M1 is a metal atom Al, Ce, Fe, or V, a composition or formulation containing or prepared from it, and methods of making and using them. Each molecule of the metal aprotic organosilanoxide compound is composed of at least one metal atom and at least one aprotic organosilanoxide ligand. The metal aprotic organosilanoxide compound may be used as such or as a constituent in a variety of silicone formulations for adhesives, coatings, elastomers, encapsulants, pottants, and sealants.

Abstract: A wet gel granule of aerogel is prepared by the following steps: mixing step: mixing with an organic mixed solvent to form a mixed solution; hydrolysis step: adding an acid catalyst to the mixed solution for carrying out a hydrolysis reaction, and adding a dispersion solvent during the condensation reaction, and agitating to gel the mixed solution during agitation and produce multiple hydrophilic or hydrophobic wet gel granules of aerogel. The overall preparation speed can be shortened quickly and at the same time the hydrophilic or hydrophobic wet gel granules of aerogel wet glue particles are prepared to increase the production efficiency of the wet gel granules of aerogel.

Abstract: Disclosed is a liquid silicone composition for transfer- or injection-molding optical parts. The liquid silicone composition comprises: (A) a linear organopolysiloxane having in a molecule at least two silicon-bonded C2-10 alkenyl groups and at least one silicon-bonded C6-20 aryl group; (B) an organopolysiloxane resin represented by a specific average unit formula; (C) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; and (E) a hydrosilylation reaction inhibitor.

Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).

Abstract: The present invention relates to gels and processes for making ceramic nanostructures, ceramic nanostructures made by such processes, and methods of using such ceramic nanostructures. Such process is templated via block copolymer self-assembly but does not require any post processing thermal and/or solvent annealing steps. As a result, such process is significantly more efficient and scalable than other processes that are templated via block copolymer self-assembly and yields a ceramic having a pore structure/shape that provides the ceramic with a higher ductility than traditional ceramics.

Abstract: A curable composition comprises (A) a first siloxane oligomer being free from a siloxane unit represented by the following formula (I) and containing an alkoxy-group-containing siloxane unit, (B) a second siloxane oligomer containing a siloxane unit represented by the formula (I) and an alkoxy-group-containing siloxane unit, (C) a silicone oil having a kinetic viscosity at 25° C. of not less than 100 mm2/s, (D) at least one curing catalyst selected from the group consisting of a metal alkoxide, a metal chelate compound, and a metal carboxylate, and (E) a solvent containing an organic solvent having a vapor pressure at 20° C. of not less than 1 kPa.