Abstract: The present invention relates to a method for concentrating organic silicate polymer solution, and more precisely, a method for concentrating organic silicate polymer solution by distillation which is characterized by remarkably reduced distillation time realized by the short-term continuous distillation at low temperature under low pressure, minimized physical property changes attributed to the inhibition of the heat-induced reaction by making the solution pass through the thin film evaporator shortly, concentration without cake generation, and easy manipulation with high capacity, making the method highly economical.

Abstract: Described are compositions comprising a fluorine containing or fluorine and silicon containing polymer, with a reactive diluent, and optionally non-reactive oligomeric additives, crosslinkers, or inorganic particles, which upon curing provides coatings with a good balance of adhesion, mechanical properties, scratch resistance, low surface energy, repellency, and transparency. The compositions are useful as a topcoat, particularly in optical applications.

Abstract: A (thio)phenoxyphenyl phenyl silane composition is disclosed. A method of making the (thio)phenoxyphenyl phenyl silane composition is also disclosed, the method further including a step of purification. A high purity (thio)phenoxyphenyl phenyl silane composition suitable for use in the preparation of encapsulants for high brightness light emitting devices is further disclosed.

Abstract: The disclosure is directed to a sterilized medical device including a non-polymerized blend including a silicone matrix material and a radiation resistant component.

Abstract: The disclosure is directed to a method of treating a medical device. The method includes providing the medical device. The medical device has an opening defined by two contacting surfaces in a polyalkylsiloxane based portion of the medical device. The method further includes irradiating the medical device free of externally applied lubricant to sterilize the medical device.

Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.

Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.

Abstract: The present invention relates to an organopolysiloxane composition that can be vulcanized at room temperature into an elastomer that is crosslinked by polycondensation and that does not contain alkyltin-based catalysts and also to novel organopolysiloxane polycondensation catalysts.

Abstract: A curable liquid epoxy resin composition comprising: (I) a liquid epoxy resin; (II) an acid anhydride; (III) a diorganosiloxane represented by the following general formula: A-R2—(R12SiO)nR12Si—R2-A {where R1 designates identical or different, substituted or unsubstituted univalent hydrocarbon groups, which are free of aliphatic unsaturated bonds; R2 designates bivalent organic groups; “A” represents a siloxane residue radical expressed by the following average unit formula: (XR12SiO1/2)a(SiO4/2)b (where R1 is the same as defined above, X designates a single bond, a hydrogen atom, a group designated by R1, an epoxy-containing alkyl group, or an alkoxysilylalkyl group; however, in one molecule at least one X should be represented by a single bond, and at least two groups designated by X should be represented by epoxy-containing alkyl groups; “a” is a positive number; “b” is a positive number; and a/b is a number ranging from 0.

Abstract: The present invention relates to a method for concentrating organic silicate polymerite solution, and more precisely, a method for concentrating organic silicate polymerite solution by distillation which is characterized by remarkably reduced distillation time realized by the short-term continuous distillation at low temperature under low pressure, minimized physical property changes attributed to the inhibition of the heat-induced reaction by making the solution pass through the thin film evaporator shortly, concentration without cake generation, and easy manipulation with high capacity, making the method highly economical.

Abstract: The present invention relates to silicone rubber compositions and long-term-stress-resistant silicone elastomers obtained therefrom, which have excellent resistance to long-term dynamic mechanical stresses, and to their use.

Abstract: A two-component addition-crosslinking silicone comprises (a) 0.1-70% by weight polyorganosiloxanes containing at least two unsaturated groups in the molecule; (b) 0.1-15% by weight polyorganohydrogensiloxanes containing at least two SiH groups in the molecule; (c) 0.01-2.0% by weight noble metal catalyst; and (d) 0.1-5% by weight of a non-toxic antimicrobial additive or a combination of at least two non-toxic antimicrobial additives.

Abstract: Provided is a liquid silicone rubber coating agent composition, including: (A) an organopolysiloxane containing at least one alkenyl group bonded to a silicon atom within each molecule, (B) a straight-chain organohydrogenpolysiloxane containing a single silicon atom-bonded hydrogen atom only at each molecular chain terminal, with a viscosity at 25° C. within a range from 0.001 to 1.0 Pa·s, (C) an organohydrogenpolysiloxane containing at least three silicon atom-bonded hydrogen atoms within each molecule, with a viscosity at 25° C. within a range from 0.001 to 10 Pa·s, (D) an addition reaction catalyst, (E) a finely powdered silica with a BET specific surface area of at least 50 m2/g, and (F) an adhesion imparting agent. Also provided is a curtain air bag with a rubber coating layer formed by curing this composition.

Abstract: A process for preparing a coating composition includes contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker, wherein the polyol, the silsesquioxane, the polyurethane dendrimer, and the crosslinker are dispersed within a solvent and forming a self-stratifying coating. Further, a coating composition includes a polyol, a silsesquioxane, a polyurethane dendrimer and a crosslinker forming a mixture dispersed within a solvent.

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 silicone resin composition comprising fine inorganic particles, wherein the silicone resin composition is obtained by a step comprising reacting (A) a bifunctional alkoxysilane and/or a dual end-disilanol, and (B) a compound having an alkoxysilyl group at an end of a molecule, in the presence of a dispersion of said fine inorganic particles. The silicone resin composition of the present invention can be suitably used for, for example, encapsulating materials, coating materials, molding materials, surface-protecting materials, adhesive agents, bonding agents, and the like.

Abstract: A two-part moisture-curing composition having as a first part water and an hydroxy-terminated diorganosiloxane; and a second part which includes a reactive silicone, at least one end-capping silane which includes one or more enoxy groups, at least one end-capping catalyst and at least one moisture cure catalyst. Enhanced and controlled cure speed is obtained by these compositions.

Abstract: Defoaming compositions employing organopolysiloxanes bearing aryl radicals exhibit surprising efficiency relative to their alkyl counterparts.

Abstract: A method for processing a crosslinkable elastomeric composition including at least one silica reinforcing filler and at least one sulfur-containing organosilane compound by using at least one processing apparatus having an internal metal surface, includes the following steps: (a) pretreating at least one portion of the internal metal surface of the at least one processing apparatus with at least one sulfur-free organosilane compound having at least one hydrolizable group; (b) feeding the crosslinkable elastomeric composition including silica to the at least one processing apparatus; and (c) processing the crosslinkable elastomeric composition.

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 relates to a composition, in particular a pulverulent master batch, comprising at least one nanoclay composed of a swellable inorganic layered material which has been modified by at least one siloxane component and by at least one non-anionic organic compound which has at least one aliphatic or cyclic radical having from 6 to 32 carbon atoms. The pulverulent master batch can result in a homogeneous mixture with a polymer powder and can be used as such. Also, a polymer master batch can be produced by compounding of the pulverulent master batch with a carrier polymer. The pulverulent master batch or the polymer master batch can be used as filler or in filler systems in various polymer compositions.

Abstract: The present invention provides a crosslinkable elastomer composition, in which generation of HF under high temperature conditions is reduced, the decrease in weight to both NF3 plasma treatment and O3 treatment in the semiconductor manufacturing process is small and generation of foreign substances (particles) in these treatments is suppressed significantly. Specifically, the present invention relates to a crosslinkable elastomer composition comprising a crosslinkable elastomer and a filler having a specific surface area of at least 0.5 m2/g and containing a synthetic polymer having a thermally and chemically stable aromatic ring in the main chain, a crosslinkable elastomer composition comprising a crosslinkable elastomer and nonoxide ceramics and a crosslinkable elastomer composition wherein the decrease in weight by NF3 plasma irradiation is at most 0.20%.

Abstract: High tear strength, low hardness silicone elastomer-forming composition is provided using a unique combination(s) of polyorganosiloxanes and organohydrogenpolysiloxanes, where the polyorganosiloxanes and the organohydrogenpolysiloxanes contain both straight-chain and resinous polyorganosiloxanes.

Abstract: The present invention relates to curable mold release compositions containing a non-volatile organic (non-VOC), or low-volatile organic (low-VOC), component employed as a carrier for a curable component. When applied as a coating the mold release compositions cure to a finish having a high durability that is sustained throughout multiple releases.

Abstract: A high polymeric organosiloxane cationic emulsion composition comprising (A) a polydiorganosiloxane of formula: HO—[R2SiO]n—H wherein R is an organic group and n is a number to give a viscosity of at least 300 Pa-s at 25° C., (B) a cationic surfactant of formula: Q3(CH3)N+·X?wherein Q is an organic group and X is halogen or carboxyl, and (C) water is fully stable. It is prepared by dispersing a corresponding organosiloxane and the cationic surfactant in water to form an emulsion, polymerizing in the presence of an alkali catalyst at 0-90° C. for 10-150 hours, and neutralizing with an acidic compound.

Abstract: Disclosed herein is a composition for forming a low dielectric thin film, which includes silane monomers having only any one of stereoisomer, or a siloxane polymer produced by polymerizing the monomers, and a method of producing the low dielectric thin film using the same. When using the composition, mechanical properties are excellent because tacticity of a matrix is improved, and formation of pores is increased due to a molecular free volume, thus it is possible to produce a low dielectric thin film having low dielectricity.

Abstract: A composition is for use with fabricating a ceramic composite stiffening member that defines a T-section. The stiffening member includes a web portion, at least one flange portion, a radius region disposed between the web portion and the at least one flange portion, and a skin member that is secured to the at least one flange portion and the radius region. The composition is a pliable mixture of refractory particles, plasticizers, silica-yielding polymers, and solvents that is applied along the radius region.

Abstract: A silicone rubber coating composition which cures into a silicone rubber having a tear strength of 25-50 kN/m and a peeling bond strength of 30-60 N/cm is suited for coating of hollow weave type air bags. A hollow weave type air bag coated with the coating composition can be instantaneously inflated while the bag prevents the silicone rubber film from being peeled from the base fabric, eliminates inflating gas leakage, and retains an acceptable inflation time.

Abstract: A polyorganosiloxane emulsion composition characterized by comprising (A) a polyorganosiloxane, (B) an N-acylalkyl taurine and/or a salt thereof, and (C) water, the content of cyclic organosiloxane oligomers in said component (A) being within 3.5 wt. %, and a cosmetic raw material characterized by consisting of said polyorganosiloxane emulsion composition. The emulsion composition is characterized by superior cosmetic functionality in terms of moisture and smoothness.

Abstract: An aqueous suspension of cross-linked silicone particles comprising (A) cross-linked silicone particles having an average diameter of 0.1 to 500 ?m, (B) polyoxyethylene sorbitan monolaurate, and (C) water. And, in a second embodiment, an aqueous emulsion of cross-linked silicone particles comprising (A) cross-linked silicone particles having an average diameter of 0.1 to 500 ?m, (B) polyoxyethylene sorbitan monolaurate, (C) water, and (D) oil.

Abstract: Methods for making homogenized cosmetic formulations comprising a silicone gel.

Abstract: The present invention relates to curable alkenyl based silicone release coating compositions having improved adhesion to paper and polymeric substrates. Furthermore the present invention relates to the process for making a silicone release coating with improved adhesion to paper and polymeric substrates.

Abstract: Disclosed is a compound of one of the formulae wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each, independently of the others, is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, R11 and R12 each, independently of the others, is an alkylene group, an arylene group, an arylalkylene group, or an alkylarylene group, G is a cationic moiety, A is an anionic moiety, n is an integer representing the number of repeat —OSi(R7)(R8)— monomer units, a is an integer representing the number of repeat —OSi(R10)(R12-lightfastness moiety)- monomer units, and c is an integer representing the number of repeat —OSi(R9)(R11-hydrophilic moiety)- monomer units.

Abstract: A silicone rubber coating composition which cures into a silicone rubber having a tear strength of 25–50 kN/m and a peeling bond strength of 30–60 N/cm is suited for coating of hollow weave type air bags. A hollow weave type air bag coated with the coating composition can be instantaneously inflated while the bag prevents the silicone rubber film from being peeled from the base fabric, eliminates inflating gas leakage, and retains an acceptable inflation time.

Abstract: The invention relates to water-repellant liquid silicone compositions intended for impregnating porous building materials, such as mineral or (ligno)cellulosic materials And comprising epoxy functionalized polyorganosiloxanes as main active material in these water-repellant liquid silicone compositions. The invention also relates to a process for making said porous building materials, water-repellant with the aid of the above said liquid silicone composition, and a process for preparing this composition is also targeted by the invention.

Abstract: Resinous composition comprising: (A) 100 weight parts of (R2SiO2/2)w(RSiO3/2)x(SiO4/2)y(O1/2R1)z wherein R is selected from the group consisting of monovalent hydrocarbon groups having 1 to 10 carbon atoms, R1 is selected from the group consisting of the hydrogen atom and saturated hydrocarbon groups having from 1 to 6 carbon atoms, w is a number from 0 to 0.2, x is a number from 0.4 to 0.9, y is a number from 0.1 to 0.6, z is a number from 0.1 to 0.5, and (w+x+y)=1; (B) 20 to 150 weight parts of an alcohol-based solvent; (C) 100 to 1000 weight parts of a solvent selected from the group consisting of hydrocarbon-based solvents and polydimethylsiloxanes described by the formula Me3SiO(Me2SiO)nSiMe3, wherein Me is the methyl group and n has a value of 0 or 1; (D) 1 to 100 weight parts of a coupling agent selected from the group consisting of alkoxysilanes and silane coupling agents; (E) 0.1 to 20 weight parts of a condensation catalyst, and (F) 0.

Abstract: Polydiorganosiloxanes of the general formula R1—(OSiR2)nOH??(I) are prepared by reacting hexaorganocyclotrisiloxanes of the formula (R2SiO)3??(II) with alcohols of the formula R1—OH??(III) where each R is the same or different and is a monovalent, optionally substituted hydrocarbon radical, R1 is a monovalent, optionally substituted hydrocarbon radical and n is an integer of at least 3, in the presence of a carbonate salt as a catalyst.

Abstract: A curable composition comprising: (A) a branched polyfluorodialkenyl compound represented by a general formula (1): CH2?CH—(X)a-Rf1-(X?)a—CH?CH2??(1) wherein, X and X? are bivalent groups such as —CH2— and —CH2O—, a represents, independently, either 0 or 1, and Rf1 is a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2): Rf2-(X?)a—CH?CH2??(2) wherein, X? and a are as defined above, and Rf2 is a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.

Abstract: Molding or coating materials, in particular coating substances for producing self-cleaning moldings or coatings, for example on facades and other building elements, which if they are exposed to rain or moving water from time to time, clean themselves and prevent permanent settlement of dirt particles and pollutants. In accordance with the invention that object is attained with molding or coating materials having the features set forth in the opening part of this specification, which are characterized in that the filler contained has an at least bimodal particle size distribution, wherein the one particle size range (A) has a mean particle diameter of at least 5 ?m and the other particle size range (B) has a mean particle diameter of at most 3 ?m and the weight ratio of the particles of the former particle size range (A) to the particles of the latter particle size range (B) is between 0.

Abstract: An anti-reflection film, having a low-refractive-index layer formed by hardening a composition, the composition containing a polysiloxane compound having a reactive organic functional group represented by formula 1, and a perfluoroolefin copolymer: wherein R1, R2, R3 and R4 each are a substituent having 1 to 20 carbon atoms; R1s, R2s, R3s or R4s each are the same or different; at least one of R1, R3 and R4 is the reactive organic functional group; x is an integer of 1?x?4; y is an integer of 10?y?500; z is an integer of 0?z?500; and the polysiloxane compound may be a random or block copolymer.

Abstract: A silicone rubber composition comprising an organopolysiloxane component composed of (A) an organopolysiloxane gum having an alkenyl content of 0.001-2 mol % and (B) an organopolysiloxane gum having an alkenyl content of more than 2 mol % to 20 mol %, (C) microparticulate silica, (D) platinum or a platinum compound, (E) an organosilicon compound containing a nitrogenous organic group and an unsaturated hydrocarbon group and/or a benzotriazole, and (F) a curing agent cures into electrically insulating silicone rubber having a minimized tensile permanent set, improved mechanical strength, and tracking resistance.

Abstract: The present invention relates to a thermoconducting silicone composition having a viscosity at 25° C. before curing of 10-1,000 Pa·s, a method of installing the composition, and a heat dissipating structure comprising the silicone composition.

Abstract: Organopolysiloxane gel products having a variety of physical forms and which produce a silky feel when applied to the skin are prepared by reacting an unsaturated organopolysiloxane resin, an Si—H functional organosiloxane crosslinker bearing pendant hydrido functionality, a C4 or higher unsaturated hydrocarbon, and optionally, an unsaturated hydrophile component. Products ranging from viscous liquids, creamy gels, pastes, and soft powders may be obtained. The products are highly useful in formulating cosmetic and pharmaceutical products.

Abstract: In a process for the preparation of an emulsion of a silicone organic block copolymer in water, a polydiorganosiloxane having terminal reactive groups (A), an organic material having terminal groups (B) which are reactive with the groups (A) and a catalyst are emulsified in water with a surfactant and the resulting emulsion is subjected to conditions under which the reaction between groups (A) and (B) proceeds in the presence of the catalyst, thereby forming a copolymer chain containing polysiloxane blocks and blocks of organic material. Preferred emulsions comprise a copolymer comprising polydiorganosiloxane blocks and organic blocks, having a viscosity in the range 10 to 1000000 Pa.s and a mean particle size of 0.3 to 1000 micrometers.

Abstract: Disclosed is a compound of one of the formulae wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 each, independently of the others, is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, R11 and R12 each, independently of the others, is an alkylene group, an arylene group, an arylalkylene group, or an alkylarylene group, G is a cationic moiety, A is an anionic moiety, n is an integer representing the number of repeat —OSi(R7)(R8)— monomer units, a is an integer representing the number of repeat —OSi(R10)(R12-lightfastness moiety)— monomer units, and c is an integer representing the number of repeat —OSi(R9)(R11-hydrophilic moiety)— monomer units.

Abstract: A curable composition comprising a liquid base polymer, a silicone elastomer powder, and a crosslinking agent is in putty form prior to curing, tack-free to the hand, easy to work, and adherent.

Abstract: A cross-linkable and cross-linked organosilicon polymer which is prepared from a mixture of a reactive polysiloxane resin having both reactive carbon-carbon double bonds and silicone-hydrogen groups, characterized by alternating structures of polycyclic polyene residue and cyclic (or tetrahedral) polysiloxane residue, and either vinyl terminated fluorine-containing polysiloxane or vinyl terminated phenyl-substituted siloxane. In an alternative embodiment, the polymer comprises a mixture of vinyl terminated phenyl-substituted polysiloxane and vinyl functional fluorosilicone elastomer with the cross-linkable and cross linked organosilicon polymer.

Abstract: The present invention relates to curable elastomer compositions and deformable thermoplastic compositions which are reshapable subsequent to cure or solidification. In particular, the present invention relates to compositions and articles of manufacture which are prepared from curable elastomeric or deformable thermoplastic matrices having distributed therein polymeric powders which have a melting point below the degradation of the matrix and which are present in shape-holding amounts to permit reshaping subsequent to elastomer cure.

Abstract: The thermal barrier composition of the present invention provides a glassy matrix comprising an alkoxy-functionalized siloxane and a functionally-terminated silane or siloxane, polymethylsilsesquioxane dissolved in a crosslinking agent, and optionally a filler and/or hollow glass microspheres.

Abstract: A silicone composition is provided which comprises at least one polysiloxane or siloxane oligomer functionalized with at least one amino group and at least three functional groups capable of cross-linking wherein the polysiloxane or siloxane oligomer imparts flame retardancy on a cellulose-containing substrate. Further embodiments of the present invention include a method for making and a cellulose-substrate comprising the aforementioned silicone composition.