Abstract: An image display sealant dam composition including (A) a polyorganosiloxane having a mercaptoalkyl bonded to a silicon; (B) an aliphatic unsaturated group-containing polyorganosiloxane including an aliphatic unsaturated group-containing linear polyorganosiloxane (B1), and a branched polyorganosiloxane (B2) having SiO4/2 units, R?3SiO1/2 units and R?2SiO2/2 units, and optionally having R?SiO3/2 units, at least three R? groups per molecule of the branched polyorganosiloxane (B2) are aliphatic unsaturated groups, the proportion of the number of the aliphatic unsaturated groups in (B2) to the total number of the aliphatic unsaturated groups in (B) is more than 50% and not more than 95%; (C) a photoreaction initiator; (D) a silane compound; and (E) an MQ resin having a weight average molecular weight of 2,000 to 2,500,000 and/or an MDQ resin having a weight average molecular weight of 2,000 to 1,000,000.

Abstract: There are provided a composition for silicone rubber foam, a manufacturing method of a silicone rubber foam, and a silicone rubber foam in which it is possible to control the foaming states. The composition for silicone rubber foam contains: (A) 100 parts by mass of polyorganosiloxane having a degree of polymerization of 4,000 to 10,000 and having two or more alkenyl groups at a content of 0.001 mmol/g or more and less than 0.3 mmol/g; an amount of polyorganohydrogensiloxane having an average of two or more Si-atom-bonded hydrogen atoms so that a molar ratio of the hydrogen atoms to the alkenyl groups in the (A) component is 0.001 to 5; 0.1 to 10 parts by mass of an organic foaming agent with a decomposition temperature of 50 to 250° C.; 5 to 200 parts by mass of silica powder; and a catalyst amount of a platinum-based metal catalyst activated with ultraviolet rays.

Abstract: The invention concerns polysiloxane compounds as W/O-emulsifiers, in textile softeners, antifoams, foam stabilizers and agriculture chemicals, in particular as W/O-emulsifiers for cosmetic uses.

Abstract: Provided is a resin composition with high dielectric insulation properties that has a dielectric constant of at least 20, a dielectric tangent of 0.1 or less, outstanding insulation properties (at least 1012 ?·cm), and for use in electrical power, communication devices, and the like. A resin composition with high dielectric insulation properties comprises a constituent (A), which is 100 parts by mass of a polymer material that acts as a dispersion medium for constituent (B), and a constituent (B), which is 100-3000 parts by mass of a perovskite complex oxide powder comprising secondary particles formed by the mutual bonding of primary particles through sintering and represented by the formula: ABO3.

Abstract: There is provided herein a polysiloxane having the general structural formula (I): as described herein. In addition there is provided a copolymer including the polysiloxane, a composition including such a copolymer and another polymer, a method of making the same and articles therefrom.

Abstract: The present invention relates to a process for preparing silylated polyurethane polymers which have increased stability under ambient condition or storage toward atmospheric moisture, in the presence of at least one of titanium-containing catalyst or zirconium-containing catalyst and to silylated polyurethane polymer compositions comprising these catalysts.

Abstract: The present invention relates to functionalized polyorganosiloxanes or silanes for the treatment of lignocellulosic materials.

Abstract: A process for the preparation of alkoxysilyl group-containing isocyanate compounds which includes the step of reacting carbonyl chloride ClC(?O)Cl with an alkoxysilyl group-containing amine in the presence of a high boiling point base, and optionally in the presence of an inert organic solvent, in order to minimize by product production and to simplify product purification, is disclosed.

Abstract: A method of preparing a curable polyorganosiloxane composition including kneading a uniform mixture of an alkenyl group-containing polyorganosiloxane, a polyorganohydrogensiloxane, and a platinum group metal compound, and defoaming the kneaded mixture under reduced pressure, the alkenyl group-containing polyorganosiloxane includes a linear polyorganosiloxane of the formula (I): R is R1 or R2, and at least two Rs are R1; R1 is C2-C6 alkenyl; R2 is C1-C6 alkyl; and n is a value that yields a viscosity at 23° C. of 10 to 10,000 cPs, a branched polyorganosiloxane containing SiO4/2 and R?3SiO1/2 units, optionally a R?2SiO and/or a R?SiO3/2, R? represents a monovalent aliphatic or alicyclic, and at least three R? groups per molecule are alkenyls, the alkenyl group-containing polyorganosiloxane having a weight ratio of the branched to linear polyorganosiloxane of 1 to 5; and a number of hydrogens bonded to a silicon atom of the polyorganohydrogensiloxane exceeds 2.

Abstract: A composition comprising a carbocyclic group and a hydrophilic moiety attached thereto an alpha, beta-unsaturated organosilicon compound. Such compounds are useful in developing water absorbing silicone-hydrogel films. Silicone-hydrogel films provide increased oxygen to pass through a lens or other treated materials.

Abstract: Diol derived blocked mercaptofunctional silane compositions in which the silanes comprise cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and processes for their preparation are provided. Also provided are rubber compositions comprising the cyclic diol-derived blocked mercaptofunctional silanes, processes for their preparation and articles of manufacture comprising the rubber compositions, in particular, automotive tires and components thereof.

Abstract: A method to form quartz glass ingots of ultra low contamination and defect levels by firing a high-purity quartz form as the feedstock, wherein the quartz glass ingot is free-formed on a platen rotating concentrically with the feedstock quartz article.

Abstract: A method for growing a crystalline composition, the first crystalline composition may include gallium and nitrogen. The crystalline composition may have an infrared absorption peak at about 3175 cm?1, with an absorbance per unit thickness of greater than about 0.01 cm?1. In one embodiment, the composition may have an amount of oxygen present in a concentration of less than about 3×1018 per cubic centimeter, and may be free of two-dimensional planar boundary defects in a determined volume of the first crystalline composition.

Abstract: Disclosed herein are epoxy-based compositions that include a polysiloxane flexibilizer and amino-functional alkoxysilane, which provides flexibility, hardness and gloss to such compositions and that are useful as coatings, adhesives, sealants and composites. Also disclosed are cured compositions and substrates coated with such epoxy-based compositions.

Abstract: An expandable polyurethane composition contains (A) a polyisocyanate, (B) an active hydrogen containing compound containing (B1) a polyol and (B2) water, and (C) a cross-linking agent composition. The cross-linking agent composition (C) contains a cross-linking agent (C1) and a carboxylic acid (C2). The cross-linking agent (C1) can be selected from an alkanolamine (a) represented by an expression: HxR1yN((R2O)nH)3-x-y, and an aminosilane (b) represented by an expression: (R3O)qR43-qSi—R5—(NHCH2CH2)pNR6R7. A content of the cross-linking agent composition (C) is 0.1 parts by mass to 20 parts by mass relative to 100 parts by mass of the active hydrogen containing compound (B), and the containing number of moles of the cross-linking agent (C1) is larger than that of the carboxylic acid (C2).

Abstract: There is provided new mono-(meth)acrylate functionalized hydrophilic silicone monomers containing a polyether with branched linking group, useful in making water absorbing silicone-hydrogel films for contact lens applications. This invention also provides homo-polymers and copolymers made from the mono-(meth)acrylate functionalized hydrophilic silicone monomers described herein. Also provided is a process for producing the monomers and polymers described herein and contact lenses produced from the same.

Abstract: The present invention is directed to a method of making metal oxide and mixed metal oxide particles. The method includes treating a mixture formed from a metal source, such as metal alkoxide, a surfactant, and a first alcohol in an aqueous media at a very high metal oxide yield. The mixture is reacted using a catalyst to form metal oxide particles having a desired particle size in said mixture. By washing the particles with an aprotic solvent, the residual carbon content of the particles can be significantly reduced. The method is particularly suitable for forming silica particles. The metal oxide particles can then be heat treated to form synthetic fused metal oxides such as, for example, synthetic fused silica.

Abstract: The present invention is directed to a process for the synthesis of organohalosilane monomers, comprising the steps of (1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with an organohalide of the formula R1X in the presence of an additive for a time and at a temperature sufficient to produce organohalosilane monomers having the formulae R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2; wherein R1 is a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers.

Abstract: There is provided herein a composition comprising the non-covalent bonded reaction product of a hydrophilic polymer containing an acid functional group and a hydrophobic polymer which contains an amine group bound directly to the hydrophobic polymer backbone; and, optionally a diluent, as well as a process of making such a composition.

Abstract: The present invention relates to stable, zero or low VOC epoxy-containing polysiloxane oligomer compositions that provide for a high degree of chemical resistance to compositions containing organic resins, while at the same time, maintaining or improving the flexibility of these organic resin-containing compositions, to processes for preparing epoxy-containing polysiloxane oligomer compositions, and to uses in coatings, sealants, adhesives, and composites containing the same.