Abstract: A method is described herein for the preparation of a resin that may be used as a component in formulations of hydrosilation cured vinyl disiloxanes to increase the hydrophilicity and thereby reduce the contact angle. The resin is a vinyl functionalized alkoxy-siloxylated polyether or polyester copolymer and the method involves reacting a hydride functionalized siloxane in the presence of a Lewis acid catalyst with (a) one or more of an alcohol, a polyether diol, a polyether polyol, a polyester diol or polyester polyol and (b) a hydride functionalized siloxane containing a terminal vinyl group directly bonded to a silicon atom. This resin can be used in the formulation of dental impression materials.

Abstract: Pt-catalyzed, addition-crosslinking silicone compositions which are self-adhesive at room temperature, develop adhesion rapidly on unpretreated substrates, and contain a functional alkoxy ?-silane as an adhesion promoter.

Abstract: Cardanol based dimers are provided. The cardanol dimers are formed by hydrosylylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided.

Abstract: Disclosed herein is an initiator integrated polydimethylsiloxane (iPDMS). The iPDMS is a polydimethylsiloxane undergoing a hydrosilylation reaction. The initiator 10-undecenyl 2-bromo-2-methyl propionate is integrated on the surface of iPDMS by covalent bond. At % is 0.01-1% confirmed by X-ray photoelectron spectroscopy. Disclosed herein is a method for making an initiator integrated polydimethylsiloxane. Prepolymer A, cross-linker B and vinyl-terminated initiator C were mixed below a ratio of 10:1:4-0.01 for 6-24 hours, then the elastomer was formed. And, disclosed herein is functional surface modification of initiator integrated polydimethylsiloxane and its applications for biocompatibility, organic solvent compatibility and heat-sensitive materials.

Abstract: A silsesquioxane resin comprised of the units (Ph(CH2)rSiO(3-x)/2(OR?)x)m, (HSiO(3-x)/2(OR?)x)n?(MeSiO(3-x)/2(OR?)x)o?(RSiO(3-x)/2(OR?)x)p, (R1SiO(3-x)/2(OR?)x)q where Ph is a phenyl group, Me is a methyl group; R? is hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms; R is selected from an aryl sulfonate ester group; and R1 is selected from substituted phenyl groups, ester groups, polyether groups; mercapto groups, and reactive or curable organic functional groups; and r has a value of 0, 1, 2, 3, or 4; x has a value of 0, 1 or 2; wherein in the resin m has a value of 0 to 0.95; n has a value of 0.05 to 0.95; o has a value of 0.05 to 0.95; p has a value of 0.05 to 0.5; q has a value of 0 to 0.5; and m+n+o+p+q=1.

Abstract: Provided is a liquid silicone rubber coating composition with a viscosity at 25° C. of 10,000 to 100,000 mPa·s, comprising: (A) (A-1) a substantially straight chain organopolysiloxane containing alkenyl groups only at both molecular chain terminals, and (A-2) a substantially straight chain organopolysiloxane containing an average of at least two alkenyl groups, only at non-terminal molecular chain positions, within each molecule, (B) an organohydrogenpolysiloxane containing an average of at least two hydrogen atoms bonded to silicon atoms within each molecule, (C) an addition reaction catalyst, and (D) an adhesion improver, as well as an air bag with a rubber coating layer comprising a cured product of such a composition. Also provided is an air bag with a rubber coating layer comprising a cured product of such a composition. The liquid silicone rubber coating composition can be used without dissolution in an organic solvent, and displays excellent adhesion to fiber and excellent rubber strength.

Abstract: The invention relates to an aqueous composition of bis-amino-functional silicon compounds which is essentially free of organic solvents and releases essentially no further alcohol in the course of crosslinking, and to processes for preparing it and to the use thereof, for example for hydrophobization of metal or glass surfaces.

Abstract: The present invention provides a polysiloxane composition maintaining high transparency over a wide wavelength region and a wide temperature region and being excellent in heat resistance, low-dielectric characteristics, workability, and the like. A polysiloxane composition includes (A) a polysiloxane which is composed of a polysiloxane compound having a polyhedral skeleton having 6 to 24 Si atoms in its molecule and which has at least one alkenyl group bonded directly or indirectly to a Si atom constituting the polyhedral skeleton, (B) a polysiloxane having a hydrosilyl group, and (C) a hydrosilylation catalyst.

Abstract: Cardanol based dimers are provided. The cardanol dimers are formed by hydrosilylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided.

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: An adhesive composition is provided comprising (A) a fluorinated amide compound containing at least two vinyl groups and having a polyfluoro structure, (B) a fluorinated organosilicon compound containing a fluorinated organic group, at least two SiH groups, and an alkyl, aryl or aralkyl group, and (C) a platinum catalyst, and (D) an organosiloxane containing a SiH group and an epoxy and/or trialkoxysilyl group. The composition is cured on brief heating into a product which achieves adhesion to various substrates and has solvent resistance, chemical resistance, heat resistance, low-temperature properties, low moisture permeability, electric insulation, and acid resistance.

Abstract: A silicone composition for sealing a light emitting element includes: (A) a vinyl group-containing organopolysiloxane having a three-dimensional network structure represented by an average unit formula: (SiO4/2)a(ViR2SiO1/2)b(R3SiO1/2)c (where Vi represents a vinyl group, R's are identical or different substituted or unsubstituted monovalent hydrocarbon groups other than alkenyl groups, and a, b, and c are positive numbers satisfying that a/(a+b+c) is 0.2 to 0.6 and b/(a+b+c) is 0.001 to 0.2); (B) an organohydrogenpolysiloxane which has at least two hydrogen atoms, each hydrogen atom being bonded to a silicon atom per molecule, the organohydrogenpolysiloxane being contained in such an amount that an amount of a hydrogen atom bonded to a silicon atom is 0.3 to 3.0 mol per 1 mol of a vinyl group bonded to a silicon atom in the component (A); and (C) a hydrosilylation catalyst (catalytic amount), wherein a coefficient of linear expansion of the composition after curing is 10×10?6 to 290×10?6/° C.

Abstract: Disclosed herein is a composition having a thermoset polymer and a plurality of hollow microsphere homogenously dispersed in the composition. The polymer is a cyanate ester thermoset, a phthalonitrile thermoset, a crosslinked acetylene thermoset, or a hydrosilation thermoset. Also disclosed herein is a method of: providing a thermosetting compound; adding microspheres to the thermosetting compound; and mixing the thermosetting compound while initiating crosslinking of the thermosetting compound.

Abstract: A polymer that is a polysiloxane polymer has fluoroquinolone antibiotic groups, or pharmaceutically acceptable salts thereof, attached via linkers. The linkers may be hydrolytically labile thereby providing a manner of releasing the fluoroquinolone antibiotic from the polymer.

Abstract: A coating composition contains a carbamate-functional film-forming material, a carbinol-functional, nonlinear siloxane resin, and an aminoplast crosslinking agent. The composition provides excellent high-bake repair adhesion of a repair-coating layer over the initial coating.

Abstract: Disclosed is a resin composition having an excellent balance between shortness of curing time and longness of pot life. The resin composition contains (A) an organopolysiloxane having an alkenyl group, (B) an organopolysiloxane having a silicon atom-bonded hydrogen atom, (C) a hydrosilylation catalyst, (D) a silane coupling agent and (E) an unsaturated dicarboxylic acid ester. The component (B) contains (B-1) an organopolysiloxane having a molecular weight of not less than 5,000 but not more than 50,000 and (B-2) an organopolysiloxane having a molecular weight of not less than 100 but not more than 5,000, and the ratio of (B-2) to (B-1) is preferably not less than 0.01% by mass but not more than 20% by mass.

Abstract: A subject-matter of the invention is an impression material with at least one compound with at least two alkenyl groups as component (a), at least one compound with at least one chelating group as component (b), at least one organohydropolysiloxane as component (c), at least one hydrosilylation catalyst as component (d) and at least one compound with a chelatable metal atom as component (e), the chelating group of the component (b) exhibiting no reactive groups which can react with the component (c) and/or the component (d). The invention achieves a long storage stability.

Abstract: An object of the invention is to provide a curing agent and a curable composition capable of forming a cured product, which is applicable for optical material and which has excellent heat and light transparency and crack resistance, and a cured product obtained by curing the same. Moreover, an object of the invention is to provide a method for producing with use of the components of the curing agent a cyclic polyorganosiloxane having a specific structure, in a selective manner and in high yield.

Abstract: An organosilicon compound which is obtained by subjecting a compound (A), a compound (B) and a compound (C) to hydrosilylation reaction: (A) silicone and/or silsesquioxane that has two or more Si—H groups per one molecule and has a molecular weight of 100 to 500,000; (B) silicone and/or silsesquioxane that has two or more alkenyl groups per one molecule and has a molecular weight of 100 to 500,000; and (C) a compound that has one or more epoxy or oxetanyl group and an alkenyl group having 2 to 18 carbon atoms per one molecule.

Abstract: Gel compositions are disclosed containing a silicone polyether elastomer from the reaction of an organohydrogensiloxane having at least two SiH containing cyclosiloxane rings in its molecule, a compound or mixture of compounds having at least two aliphatic unsaturated groups in its molecule, and a hydrosilylation catalyst. The silicone polyether elastomer reaction product may itself be a gelled composition, or optionally may be contained in a carrier fluid to form a gel. The gel compositions may further contain a personal or healthcare active.

Abstract: The invention is directed to a kaolin that has the surface modified by reaction with specific silicone compounds. The reaction of these materials result in a kaolin that is (a) less dusty when handled, (b) more flowable, (c) has better dispersibility in oils and in emulsion, resulting in less whitening when applied to skin and improved waterproofing when applied to skin, (d) has better stability in emulsions when dispersed in oils because of the durability of the surface treatment.

Abstract: Present invention provides a fluorine-containing organopolysiloxane composition comprising a fluorine-containing silicone polymer having a three-dimensional, cross-linked structure, prepared by addition polymerizing the following (A), (B) and (C) and containing 10 to 30 mass % of the fluorine atoms, relative to a total mass of (A) to (C), (A) a vinyl group-containing organopolysiloxane represented by the following formula (1): (B) an organohydrogenpolysiloxane represented by the following formula (2): and (C) an organopolysiloxane having a reactive group on one end alone and represented by the following formula (3), and further comprising (D) a low viscosity silicone oil with a dynamic viscosity of 50 mm2/s or less at 25 degrees C.

Abstract: An addition curable self-adhesive silicone rubber composition comprising (A) an organopolysiloxane containing at least two alkenyl groups, (B) an organohydrogenpolysiloxane containing at least three SiH groups, (C) another organohydrogenpolysiloxane containing no other reactive groups than SiH groups, and (F) an addition reaction catalyst, with a SiH/alkenyl molar ratio ranging from 0.8 to 5.0, is briefly moldable and cures to various metals and organic resins.

Abstract: The purpose of the present invention is to provide a surface treating agent which provides a surface where stain does not easily adhere, does not stand out and is easily wiped off. The present invention is a perfluoropolyether group-containing polyorganosiloxane represented by the following formula (1) and a surface treating agent comprising the same, Ak(R)nZ-Q-Rf-Q-Z(R)nAk??(1) wherein Rf is a divalent perfluoropolyether group; Q is a divalent group linking Rf with Z; Z is a polyorganosiloxane group having at least three siloxane bonds with its valency being trivalent to undecavalent; R is a monovalent organic group having 8 to 40 carbon atoms, n is an integer of from 1 to 8; A is a group represented by the following formula (2); and k is an integer of from 1 to 9, provided that a total of n+k=the valency of Z?1 wherein R? is an alkyl group having 1 to 4 carbon atoms or a phenyl group; X is a hydrolysable group, a is 2 or 3; and b is an integer of from 2 to 10.

Abstract: Cardanol based dimers are provided. The cardanol dimers are formed by hydrosylylation with silanes. Cardanol based dimers may be further reacted to form epoxy curing agents and epoxies which can be used as anti-fouling coatings on ship hulls and marine structures. The cardanol dimers may also be used to produce friction particles or phenolic resins. Methods of synthesizing the cardanol based dimers, the epoxy curing agents and the epoxies are also provided.

Abstract: A compound having the formula below. Each R is methyl or phenyl; R2 comprises one or more of silane, siloxane, and aromatic groups; n is a nonnegative integer; and m is 1 or 2. The dashed bond is a single bond and the double dashed bond is a double bond, or the dashed bond is a double bond and the double dashed bond is a triple bond. A polymer made by a hydrosilation reaction of a polyhedral oligomeric silsesquioxane having pendant siloxane groups with an acetylene- and silicon-containing compound having at least two vinyl or ethynyl groups, and a crosslinked polymer thereof. The reaction occurs between the pendant siloxane groups and the vinyl or ethynyl groups.

Abstract: A curable organopolysiloxane composition comprising: (A) an novel organopolysiloxane represented by the following average structural formula: R1aSiO(4-a)/2 {wherein R1 represents a substituted or non-substituted monovalent hydrocarbon group, an alkoxy group, a hydroxyl group, or an organopolysiloxane residue of the following general formula: —X—(SiR2O)mSiR23 (wherein R2 are the same or different, substituted or unsubstituted monovalent hydrocarbon groups; X represents oxygen atoms or a bivalent hydrocarbon group; and ‘m’ is an integer equal to or greater than 1); however, at least one R1 in one molecule is the aforementioned organopolysiloxane residue, at least one R1 is a monovalent hydrocarbon group having aliphatic carbon-carbon double bonds, and ‘a’ is a positive number that satisfies the following condition: 0<a<2)}; (B) an organic silicon compound having in one molecule at least two silicon-bonded hydrogen atoms; and (C) a hydrosilylation catalyst; is capable of forming a cured product of high fle

Abstract: Cured products constituted with conventional epoxy compounds have been disadvantageous in heat-resistant and light-resistant transparency, and crack resistance. An object of the present invention is to provide: a modified polyorganosiloxane compound having an epoxy group and/or an oxetanyl group which provides a cured product that is excellent in heat-resistant and light-resistant transparency, and crack resistance; a curable composition thereof; and a cured product obtained by curing the same.

Abstract: Organosilicone fine particles of size in the range of 0.1-20 ?m, each having 20 or more faces with indefinite shapes and a network of convex parts that surround these faces with indefinite shapes on its surface, and being spherical as a whole respond to highly advanced requirements of recent years including improvements in optical characteristics of resin compounds, usability and feeling of cosmetics and maintainability of fluidity of development toners. The invention further provides methods of producing such organosilicone fine particles.

Abstract: A method of making a light emitting diode (LED) having an optical element is provided, comprising: providing a curable liquid polysiloxane/TiO2 composite, which exhibits a refractive index of >1.61 to 1.7 and which is a liquid at room temperature and atmospheric pressure; providing a semiconductor light emitting diode die having a face, wherein the semiconductor light emitting diode die emits light through the face; contacting the semiconductor light emitting diode die with the curable liquid polysiloxane/TiO2 composite; and, curing the curable liquid polysiloxane/TiO2 composite to form an optical element; wherein at least a portion of the optical element is adjacent to the face.

Abstract: The general field of the invention is that of airbags. The invention relates to a process for improving the tear strength and the combing strength of coated fabrics intended for uses in the field of inflatable bags using a silicone composition comprising an additive containing a polyorganosiloxane resin (V) and a calcium carbonate. After coating the composition onto the fabric supports and curing, the coated supports not only have optimum adhesion and crease resistance properties, but also have good properties in terms of combing strength and tear strength.

Abstract: Disclosed herein is an initiator integrated polydimethylsiloxane (iPDMS). The iPDMS is a polydimethylsiloxane undergoing a hydrosilylation reaction. The initiator 10-undecenyl 2-bromo-2-methyl propionate is integrated on the surface of iPDMS by covalent bond. At % is 0.01-1% confirmed by X-ray photoelectron spectroscopy. Disclosed herein is a method for making an initiator integrated polydimethylsiloxane. Prepolymer A, cross-linker B and vinyl-terminated initiator C were mixed below a ratio of 10:1:4-0.01 for 6-24 hours, then the elastomer was formed. And, disclosed herein is functional surface modification of initiator integrated polydimethylsiloxane and its applications for biocompatibility, organic solvent compatibility and heat-sensitive materials.

Abstract: The present invention relates to a polyimide resin produced by using silphenylene compound represented by the following formula (1) as a monomer: in which R1 to R4 each independently represents a hydrogen atom or a monovalent hydrocarbon group having 1 to 6 carbon atoms, and R5 and R6 each independently represents a divalent hydrocarbon group having 2 to 8 carbon atoms. The silphenylene compound of the present invention is useful as a flexible printed wiring board material, a passivation film for IC chips, and a panel material for liquid crystals.

Abstract: A polysilane?polysilazane copolymer contains a polysilane unit of formula (I), and a polysilazane unit of formula (II), where each R1 and each R2 are each independently selected from H, Si, and N atoms, R3 is selected from H, Si, or C atoms, a?1, b?1, and a quantity (a+b)?2. The polysilane?polysilazane copolymer may be formulated in a composition with a solvent. The polysilane-polysilazane copolymer may be used in PMD and STI applications for trench filling, where the trenches have widths of 100 nm or less and aspect ratios of at least (6). The polysilane?polysilazane copolymer can be prepared by amination of a perchloro polysilane having (2) or more silicon atoms per molecule with a primary amine.

Abstract: Provided is an addition reaction-curable silicone pressure-sensitive adhesive composition, including: (A) a specific diorganopolysiloxane consisting of (A1) a linear diorganopolysiloxane having two or more alkenyl groups, and (A2) a linear diorganopolysiloxane having SiOH groups at the terminals and containing no alkenyl groups, (B) a specific organopolysiloxane containing M units, Q units and SiOH group-containing siloxane units, (C) an organohydrogenpolysiloxane containing three or more SiH groups, (D) an addition reaction retarder, (E) a platinum group metal-based catalyst, and (F) a specific organopolysiloxane containing T units and D units. A cured product layer formed from a cured product of this composition can be peeled from a release film with minimal peeling force, and exhibits excellent adhesion to silicone rubbers.

Abstract: The present invention generally relates to amphiphilic grafts and co-networks made from at least one hydrophilic polymer and at least one hydrophobic polymer, and to processes for preparing such amphiphilic grafts and co-networks. In another embodiment, the present invention relates to amphiphilic co-networks formed from the combination of at least one polysiloxane and at least one polyacrylamide. In yet another embodiment, the present invention relates to amphiphilic co-networks formed from the combination of at least one polysiloxane, at least one polyacrylamide and at least one crosslinking agent.

Abstract: Doped polysilanes, inks containing the same, and methods for their preparation and use are disclosed. The doped polysilane generally has the formula H-[AaHb(DRx)m]q-[(AcHdR1e)n]p—H, where each instance of A is independently Si or Ge, and D is B, P, As or Sb. In preferred embodiments, R is H, -AfHf+1R2f, alkyl, aryl or substituted aryl, and R1 is independently H, halogen, aryl or substituted aryl. In one aspect, the method of making a doped poly(aryl)silane generally includes the steps of combining a doped silane of the formula AaHb+2(DRx)m (optionally further including a silane of the formula AcHd+2R1e) with a catalyst of the formula R4wR5yMXz (or an immobilized derivative thereof) to form a doped poly(aryl)silane, then removing the metal M. In another aspect, the method of making a doped polysilane includes the steps of halogenating a doped polyarylsilane, and reducing the doped halopolysilane with a metal hydride to form the doped polysilane.

Abstract: This invention pertains to silsesquioxane resins useful in antireflective coatings wherein the silsesquioxane resin is comprised of the units (Ph(CH2)rSiO(3?x)/2(OR?)x)m (HSiO(3?x)/2(OR?)x)n (MeSiO(3?x)/2(OR?)x)o (RSiO(3?x)/2(OR?)x)p (R1SiO(3?x)/2(OR?)x)q where Ph is a phenyl group, Me is a methyl group; R? is hydrogen atom or a hydrocarbon group having from 1 to 4 carbon atoms; R is selected from a hydroxyl producing group; and R1 is selected from substituted phenyl groups, ester groups, polyether groups; mercapto groups, and reactive or curable organic functional groups; and r has a value of 0, 1, 2, 3, or 4; x has a value of 0, 1 or 2; wherein in the resin m has a value of 0 to 0.95; n has a value of 0.05 to 0.95; o has a value of 0.05 to 0.95; p has a value of 0.05 to 0.5; q has a value of 0 to 0.5; and m+n+o+p+q?1.

Abstract: Disclosed herein are manganese, iron, cobalt, or nickel complexes containing terdentate pyridine diimine ligands and their use as efficient and selective hydrosilylation catalysts.

Abstract: Polysilanes, inks containing the same, and methods for their preparation are disclosed. The polysilane generally has the formula H-[(AHR)n(c-AmHpm-2)q]—H, where each instance of A is independently Si or Ge; R is H, -AaHa+1Ra, halogen, aryl or substituted aryl; (n+a)?10 if q=0, q?3 if n=0, and (n+q)?6 if both n and q?0; p is 1 or 2; and m is from 3 to 12. In one aspect, the method generally includes the steps of combining a silane compound of the formula AHaR14-a, the formula AkHgR1?h and/or the formula c-AmHpmR1rm with a catalyst of the formula R4xR5yMXz (or an immobilized derivative thereof) to form a poly(aryl)silane; then washing the poly(aryl)silane with an aqueous washing composition and contacting the poly(aryl)silane with an adsorbent to remove the metal M. In another aspect, the method includes the steps of halogenating a polyarylsilane to form a halopolysilane; and reducing the halopolysilane with a metal hydride to form the polysilane.

Abstract: The invention relates to an aqueous silicone emulsion comprising polyorganosiloxanes (POS) with Si-vinyl units and POS with SiH units, cross-linkable by polyaddition in the presence of a platinum catalyst. The emulsion also contains an agent (e.g., buffer) for setting and maintaining pH between 5 and 9 in an amount sufficient to eliminate or significantly reduce foam or gel formation; an emulsifying agent; optionally a polyaddition inhibitor and other additives such as a filler, biocide, antifoam, anti-freeze, coloring agent, synthetic latex. The emulsions can comprise three different families of dispersed silicone phase droplets (e.g., polyorganosiloxane (A), polyorganosiloxane (B) and catalyst). Such emulsions can be used in the preparation of anti-adherent coating on fibrous or non fibrous supports. The invention also concerns a method for preparing said emulsions and methods for coating supports, for example paper, using said emulsion.

Abstract: A silicone rubber sponge emulsion composition comprising (A) (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule, or a paste-like mixture of (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule and (d) a reinforcing filler, (b) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (c) a platinum catalyst, (B) an aqueous solution of a water-soluble polymer, and (C) an emulsifying agent; its production; and production of silicone rubber sponge, wherein silicone rubber sponge is obtained by curing the composition into a molding and heating the molding.

Abstract: Gel compositions are disclosed comprising a silicone elastomer from the reaction of an SiH containing organopolysiloxane resin and an organic compound having at least two aliphatic unsaturated groups in its molecule.

Abstract: A composition includes a siloxane of the formula: (RMe2SiO1/2)a(MeRSiO2/2)b(RSiO3/2)c(SiO4/2)d wherein a is at least 2, b is from 3 to 20, c is from 0 to 10, d is from 0 to 10, and each R is independently of the formula —CR?2—CR?2—Y—Z or CR?2—CR?2—Z, wherein each R? is independently a hydrogen atom or a C1 to C10 hydrocarbyl free of aliphatic unsaturation so long as at least one R? is a hydrogen atom, Y is a divalent organic group, and Z is a polycyclic group containing at least one aromatic ring. A method of making the siloxane includes charging (HMe2SiO1/2)a(MeHSiO2/2)b(HSiO3/2)c(SiO4/2)d, a platinum catalyst, and an alkene of the formula CR?2?CR?—Y—Z or CR?2?CR?—Z into a reactor to form the siloxane. The siloxane is useful as a component in holographic storage media for photopolymer-based holographic data storage applications. The siloxane exhibits excellent compatibility when mixed with a polymerizable component before the polymerizable component is cured.

Abstract: (A) Siloxane-based antifoams and (B) silicone polyethers prepared by reacting organopolysiloxanes (1) containing 0.05% to 1.6% by weight of Si-bonded hydrogen atoms with unsaturated polyethers (3) of the formulae: CH2?CR1—(CH2)aO(C2H4O)bR1??(Ia) CH2?CR1—(CH2)aO(C2H4O)b(C3H6O)cR1??(Ib) CH2?CR1—(CH2)aO(C3H6O)cR1??(Ic), where R1 is a hydrogen or a C1-6 hydrocarbon radical, a is 0 to 16, b is 1 to 50, and c is 1 to 50, wherein the sum b+c is ?10 and at least two different polyethers (Ia), (Ib) and (Ic) are used, and optionally further reacting the reaction product with organopolysiloxanes (2) containing from 0.01% to 0.5% by weight of Si-bonded hydrogen atoms, wherein the first and second step reactions take place with a hydrosilylation catalyst, and the weight ratio of Si-bonded hydrogen in organopolysiloxane (1) to Si-bonded hydrogen in organopolysiloxane (2) is at least 1.5.

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: A resin for an encapsulation material includes a first polysiloxane including hydrogen bound to silicon (Si—H) at its terminal end, and a second polysiloxane including an alkenyl group bound to silicon (Si-Vi) at its terminal end, wherein a ratio (Si—H/Si-Vi) of hydrogen bound to silicon (Si—H) in the first polysiloxane to the alkenyl group bound to silicon (Si-Vi) in the second polysiloxane is about 1 to about 1.

Abstract: A method of manufacturing an inorganic substrate coated with a thin silica type glass layer of 2H to 9H pencil hardness, said method comprising the steps of: coating an inorganic substrate with a cyclic dihydrogenpolysiloxane and/or a hydrogenpolysiloxane represented by a specific unit formula, and curing it; an inorganic substrate coated with a thin silica type glass layer; a coating agent for an inorganic substrate that is composed of a cyclic dihydrogenpolysiloxane and/or a hydrogenpolysiloxane represented by a specific unit formula; and a semiconductor device having an inorganic substrate coated with a thin silica type glass layer.

Abstract: A surface modifier comprising an organosilicone compound represented by General Formula (A) and/or General Formula (B): F—(CF2)q—(OC3F6)m—(OC2F4)n—(OCF2)o(CH2)pX(CH2)rSi(X?)3-a(R1)a (A) and F—(CF2)q—(OC3F6)m—(OC2F4)n—(OCF2)o(CH2)pX(CH2)r(X?)2-a(R1)aSiO(F—(CF2)q—(OC3F6)m—(OC2F4)n—(OCF2)o(CH2)pX(CH2)r(X?)1-a(R1)aSiO)zF—(CF2)q—(OC3F6)m—(OC2F4)n—(OCF2)o(CH2)pX(CH2)r(X?)2-a(R1)aSi (B) wherein q is an integer from 1 to 3; m, n, and o are independently integers from 0 to 200; p is 1 or 2; X is O or a bivalent organic group; r is an integer from 2 to 20; R1 is a C1-22 linear or branched hydrocarbon group; a is an integer from 0 to 2; X? is hydrolysable group; and z is an integer from 0 to 10 when a is 0 or 1.

Abstract: A compound having the formula. Each R is methyl or phenyl; R2 comprises one or more of silane, siloxane, and aromatic groups; n is a nonnegative integer; and m is 1 or 2. The dashed bond is a single bond and the double dashed bond is a double bond, or the dashed bond is a double bond and the double dashed bond is a triple bond. A polymer made by a hydrosilation reaction of a polyhedral oligomeric silsesquioxane having pendant siloxane groups with an acetylene- and silicon-containing compound having at least two vinyl or ethynyl groups, and a crosslinked polymer thereof. The reaction occurs between the pendant siloxane groups and the vinyl or ethynyl groups.