Abstract: Provided is a coating composition excellent in antifouling properties, transparency and hydrophilicity, wherein the coating composition contains (A) a metal oxide particle having a number average particle size of 1 nm to 400 nm; and (B) a polymer particle, in which the content of an aqueous-phase component in the component (B), represented by the expression (I), is 20 mass % or less, where (I) (%)=(dry mass of a filtrate obtained by filtering the component (B) at a molecular cutoff of 50,000)×(100?total mass of solid content)/(mass of the filtrate?dry mass of the filtrate)×100/the total mass of solid content.

Abstract: A flame retardant additive for polymers is disclosed which additive comprises a polyacrylate in combination with a) at least one zinc borate, b) at least one silicone resin, and c) alumina trihydrate or magnesium hydroxide or a mixture thereof, said additive being free of halogens, antimony oxide and phosphorus-containing substances. A flame retardant composition comprising a polymer and a flame retardant additive is also disclosed as well as a method of reducing the flammability of a polymer by mixing said polymer with said flame retardant additive.

Abstract: A protective coating that comprises a free radically polymerizable component with an atypically high content of tri- or higher functional ingredients is disclosed. Diluents such as oligomeric resins in combination with other resins and particulate materials may also be employed in the composition.

Abstract: The present invention provides a rubber composition containing: (A) a rubber component containing 10% by mass or more of at least one kind of rubber selected from diene rubber synthesized by emulsion polymerization and natural rubber and 90% by mass or less of another kind of diene rubber; (B) silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of not less than 180 m2/g measured according to a method described in ASTM D3765-92; (C) at least one silane coupling agent selected from a polysulfide compound and a thioester compound; and (D) a vulcanization accelerator, the rubber composition after vulcanization having an average aggregated aggregate area (nm2) of the silica of 1,900 or less, and thus provides a rubber composition that is improved in low-heat-generation property.

Abstract: The present invention provides a rubber composition containing: (A) a rubber component containing from 90 to 100% by mass of at least one kind of diene rubber synthesized by solution polymerization and from 0 to 10% by mass of another kind of diene rubber; (B) silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of 140 m2/g or more and less than 180 m2/g measured according to a method described in ASTM D3765-92; (C) at least one silane coupling agent selected from a polysulfide compound and a thioester compound; and (D) a vulcanization accelerator, the rubber composition after vulcanization having an average aggregated aggregate area (nm2) of the silica of 2,200 or less, and thus provides a rubber composition that is improved in low-heat-generation property.

Abstract: The present invention provides a rubber composition containing: (A) a rubber component containing from 90 to 100% by mass of at least one kind of diene rubber synthesized by solution polymerization and from 0 to 10% by mass of another kind of diene rubber; (B) silica having a n-hexadecyltrimethylammonium bromide (CTAB) adsorption specific surface area of less than 140 m2/g or more measured according to a method described in ASTM D3765-92; (C) at least one silane coupling agent selected from a polysulfide compound and a thioester compound; and (D) a vulcanization accelerator, the rubber composition after vulcanization having an average aggregated aggregate area (nm2) of the silica of 3,100 or less, and thus provides a rubber composition that is improved in low-heat-generation property.

Abstract: A durable superhydrophobic coating, which coating has the ability to self-heal, similar to the regeneration function observed in biological systems. The coating composition comprises the reaction products of at least one fluorine-containing silane compound (A), at least one hydrolysable compound (B), at least one polysiloxane compound (C), at least one relatively large-sized ceramic particle (I), at least one nano-sized ceramic particle (II) and at least one solvent.

Abstract: Synthetic aggregates and methods of producing the same are disclosed herein. The aggregates advantageously utilize styrene polymer particles coated with additional materials such as fly ash, silica fume, and/or “liquid glass” in order to provide an improved means for manufacturing lightweight concrete that is significantly stronger than conventional lightweight concretes.

Abstract: A plastic refractory material or a refractory mortar which harden when dried and which contain at least one light-weight filler, a binder, fibers and/or wollastonite as well as water is characterized in that blown closed-cell volcanic ash is used as the light-weight filler, the ash being provided with a superficial water-protection layer, in that an inorganic-organic hybrid binder is used as the binder, the binder containing silicic acid and an organic polymer, and in that the material or the mortar contains kaolin or kaolinite and silicon dioxide. It is suggested to publish the abstract without a drawing.

Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from a conjugated diene having not more than 12 carbon atoms and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing a conjugated diene having not more than 12 carbon atoms with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

Abstract: Disclosed is a phenol resin molding material comprising 100 parts by weight of a resol type phenol resin, 40 to 100 parts by weight of an inorganic fiber, 30 to 90 parts by weight of a natural silica powder having an average particle size of 0.5 to 15 ?m and subjected to a coupling agent treatment and 1 to 15 parts by weight of a rubber component as main components. The molding material can contain 50% by weight or more of a glass fiber and a natural silica powder having a crushed shape can be used as the natural silica powder. As a molded article produced from the resin molding material, a resin pulley is exemplified.

Abstract: The present invention relates to a rubber composition including a rubber component (A), a farnesene polymer (B) and silica (C).

Abstract: A heavy vehicle tire tread constituted from a material based upon a rubber composition, the composition comprising, per 100 parts by weight of elastomer, between 35 and 60 phr of a solution polymerized styrene-butadiene rubber having a styrene content of between 10 wt. % and 35 wt. % and between 35 and 60 phr of a polybutadiene. The composition may further include between 45 and 110 phr of silica and between (1.94×10?3/n)(S) and (2.55×10?3/n)(S) moles of a sulfur-containing organosilicon compound as a silane coupling agent per 1 kg of the silica, wherein n is a number of silicon atoms in a molecule of the silane coupling agent and S is a CTAB surface area in m2/g of the silica. The rubber composition may be cured with a sulfur curing system comprising a sulfenamide accelerator and between 0.3 and 0.8 phr of free sulfur, wherein a ratio of the sulfenamide accelerator and the sulfur is between 2 and 7.

Abstract: There is provided a modified conjugated diene-based polymer having a silyl group substituted with one or more alkoxy groups, and one or more nitrogen atoms on the chain ends of a conjugated diene-based polymer, the modified conjugated diene-based polymer being obtained by polymerizing a conjugated diene compound, or copolymerizing a conjugated diene compound with an aromatic vinyl compound, by using a polyfunctional anionic polymerization initiator prepared from a polyvinyl aromatic compound and an organolithium compound in a range of a molar ratio (the polyvinyl aromatic compound/the organolithium compound) of from 0.05 to 1.0, so as to obtain the conjugated diene-based polymer, and by reacting a living polymer end of the conjugated diene polymer with the compound having a silyl group substituted with two or more alkoxy groups, and one or more nitrogen atoms.

Abstract: The invention relates to aqueous dispersions, characterized in that they comprise (c) at least one aqueous silicon dioxide dispersion with a mean particle diameter of the SiO2-particles of 1 to 400 nm and (d) at least one water-soluble hydroxyl-containing organic compound, to a process for their preparation and to their use in adhesive and coating formulations.

Abstract: A composite material is disclosed for use in a high-voltage device having a high-voltage electrical conductor, the material containing a polymeric matrix and at least one fiber embedded in the polymeric matrix, the fibers having an average diameter of less than about 500 nm.

Abstract: Embodiments disclosed herein relate to a composition useful for forming stator or a portion thereof. The composition may include: a curable elastomer; a fiber fibrous compound; a fiber dispersion compound; and optionally carbon black.

Abstract: A resin composition is provided, which comprises: 40 to 95% by mass of a resin component containing 10 to 100% by mass of a polyarylate resin and 90 to 0% by mass of a polycarbonate resin; and 60 to 5% by mass of spherical silica having an average particle diameter of not greater than 10 ?m. The resin composition is molded into a product.

Abstract: A dispersion, comprising 0.1 to 25% by weight hydrophobized silica, 8 to 90 wt % of at least one alcohol selected from the group consisting of ethanol, 1-propanol and 2-propanol, 7 to 89 wt % of water, 0 to 30% by weight solvent immiscible with water, and 0.04 to 5 wt % of at least one carboxyvinyl polymer present in neutralized form, can be applied to a surface using a non-drip application method and, by modifying the surface with hydrophobized silica, imparts water-repelling and self-cleaning properties to the surface.

Abstract: Provided is an active energy ray curable resin composition for the formation of a hard coating layer on a thermoplastic resin product, where the hard coating layer is one having good resistance to scratches and abrasion and strong resistance to impact and weather or one having very good resistance to scratches and abrasion. The composition contains a urethane (meth)acrylate (A) having an average number of functional groups of 3 to 6 and having, in molecular skeleton, an organic group corresponding to a tricyclodecanedimethanol represented by following Formula (1), except for removing two hydrogen atoms of two hydroxyl groups therefrom; and a microparticulate silica (S) having a volume median diameter of 1 to 100 nm as determined by dynamic light scattering. The composition contains 10 to 40 percent by weight of the urethane (meth)acrylate (A) and 10 to 60 percent by weight of the microparticulate silica (S) based on the total weight of non-volatile matter in the composition.

Abstract: A composite material is disclosed that includes a matrix binder material and a plurality of elongated fiber strands. The strands have a longitudinally extending central portion having two or more lobes extending radially from the central portion and disposed longitudinally along the strand.

Abstract: A thermosetting encapsulation adhesive sheet which is used for encapsulating a chip type device (1) having connection electrodes (bumps) (3) and mounted on a wiring circuit board (2). The thermosetting encapsulation adhesive sheet is composed of an epoxy resin composition having a viscosity of 5×104 to 5×106 Pa·s as measured at a temperature of 80 to 120° C. before thermosetting thereof. The thermosetting encapsulation adhesive sheet makes it possible to conveniently encapsulate a hollow device with an improved yield.

Abstract: The invention relates to a hardenable dental composition comprising component (A) comprising a cationically hardenable compound, component (B) comprising an initiator being able to initiate the hardening reaction of the cationically hardenable compound, and component (C) comprising a filler, wherein the filler comprises a filler body and a filler surface, the filler surface comprising side groups with polar moieties. The invention also relates to a process of producing the dental composition, to the use of the dental composition as dental impression material and to a method of taking an impression of dental tissue.

Abstract: A paint composition contains polyurethane paint and nano silicon dioxide. The weight percentage of the nano silicon dioxide in the paint composition is about 2% to about 10%. The surface of the nano silicon dioxide chemically bonds with a silane coupling agent having amino function groups or an aluminate coupling agent having amino function groups.

Abstract: The present invention provides a rubber composition for tires which enables a balanced improvement in rolling resistance, abrasion resistance, and wet-skid performance. The present invention relates to a rubber composition for tires, including a rubber blend including a diene rubber A modified with a specific acrylamide compound, and a diene rubber B modified with either a combination of a specific silicon or tin compound and a specific modifying compound or with the modifying compound, the combined rubbers A and B having a weight average molecular weight of 300,000 to 1,400,000; and a specific silica.

Abstract: A thermally conductive silicone grease composition comprising at least the following components: (A) an organopolysiloxane which is liquid at 25° C. and is represented by the following average compositional formula: R1aSiO(4-a)/2, where, R1 is a monovalent hydrocarbon group; and “a” is a number ranging from 1.8 to 2.2; (B) a thermally conductive filler composed of constituents (B1) to (B3) given below, wherein: constituent (B1) is spherical aluminum oxide powder with an average particle diameter ranging from 15 to 55 ?m; constituent (B2) is spherical aluminum oxide powder with an average particle diameter ranging from 2 to 10 ?m; constituent (B3) is aluminum oxide powder with an average particle size not exceeding 1 ?m; and (C) an alkoxysilyl-containing organopolysiloxane. The composition, along with high thermal conductivity, possesses excellent handleability and low coefficient of friction.

Abstract: A process for producing polymer-functionalized filler particles and polymer-functionalized filler particles obtained by this process. The polymer-functionalized filler particles are used as additives for rubber mixtures. The polymers for functionalizing the filler particles are obtained in-situ starting from filler particles having a surface-bound RAFT agent. The binding of silyl-bearing RAFT agents and of Diels-Alder RAFT agents occurs via the R-group and the subsequent RAFT polymerization proceeds via a reactive site of the RAFT agent.

Abstract: The present invention is directed to a coating composition comprising a vinyl acrylic copolymer latex wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24 hr. The invention is also directed to the copolymer latex itself. Further, the invention is a method of improving a coating's ability to withstand a high humidity environment comprising adding a vinyl acrylic copolymer latex to the coating composition wherein said copolymer latex has a water contact angle of about 60° or higher on the dried latex film surface, and wherein said copolymer latex further has a specific water vapor permeability of about 0.5 mg/cm2/mm/24 hr.

Abstract: The invention relates to thermoplastic compositions comprising A) 30.0 to 100.0 parts by wt. of at least one aromatic polycarbonate, B) 0.0 to 50.0 parts by wt. of a rubber-modified graft polymer and/or vinyl copolymer, C) 0.00 to 50.00 parts by wt. of polyester, D) 5.0 to 50.0 parts by wt. of at least one inorganic filler having a particle shape selected from the group including spherical/cubic, tabular/discus-shaped and lamellar geometries, and E) 0.00 to 5.00 parts by wt. of further conventional additives. The invention further relates to thermoplastic shaped articles having a high surface quality, high dimensional stability and high heat distortion temperature, as well as thermoplastic moulding compositions and a process for the production of the shaped articles. The present invention moreover relates to the coated finished parts produced from the thermoplastic shaped parts.

Abstract: A thermosetting silicone resin composition for an LED reflector has: a thermosetting resin; at least one kind of white pigment selected from titanium oxide, zinc oxide, zirconium oxide, magnesium oxide, barium carbonate, magnesium silicate, zinc sulfate, and barium sulfate; and an inorganic filler other than the pigment, which contains at least one kind of inorganic filler that has an average particle diameter of 30 ?m to 100 ?m and a refraction index that is different from a refraction index of a cured material of the thermosetting resin by 0.05 or more, and at least one kind of inorganic filler that has an average particle diameter of less than 30 ?m. The thermosetting resin composition provides a cured material that has excellent heat and light resisting properties and hardly leaks light, a reflector for an LED obtained by molding using the composition, and an optical semiconductor apparatus using the reflector.

Abstract: A highway marking paint is provided formed from a waterborne latex paint and porous silica. The silica enables the paint to achieve sufficient viscosity to permit the application of a highway marking of at least 40 mil and preferably at least 120 mil. The highway marking paint can also include retroreflective glass beads. Optionally, the highway marking paint further includes an acrylic polymer emulsion.

Abstract: Disclosed therein is a synthetic marble with high hardness and a method of manufacturing the synthetic marble, in which the raw material for the surface of a manufactured synthetic marble is silica because a step of coating a material of a high hardness, silica, on a sheet is included in the process of manufacturing the synthetic marble, so that the synthetic marble is not contaminated because it is not scratched due to the solid surface of high hardness, and is easy to clean.

Abstract: Dispersions of nanoparticles in a resin component are described. The nanoparticles have a multimodal particle size distribution including at least a first mode and a second mode. The number average particle diameter of the particles in the first mode is greater than the number average particle size distribution in the second mode. The use of multimodal nanoparticle size distributions and the relative number of particles in the first and second mode to reduce or eliminate particle stacking behavior is also described.

Abstract: A fluorine-containing curable composition which is less viscous, and which can produce a cured article having excellent heat resistance, chemical resistance, solvent resistance, and mechanical strength is provided. The fluorine-containing curable composition comprises (a) 100 parts by weight of a straight chain fluorine-containing polymer having at least two alkenyl groups per molecule represented by the following formula (1): said polymer having a number average molecular weight of 1,000 to 100,000; (b) a fluorine-containing organosilicon compound having at least 2 hydrogen atoms bonded to the silicon atom per molecule at an amount such that molar ratio of hydrosilyl group (SiH group) in the component (b) to the alkenyl group in the component (a) is in the range of 0.4 to 5.0; (c) a catalytic amount of a hydrosilylation catalyst; and (d) 1 to 100 parts by weight of a silica filler.

Abstract: Disclosed are injection-moldable fluororesin compositions of melt flowable fluororesin and mesoporous silica. The fluororesin compositions are melt flowable and have a melt flow rate of from 2 to 60 g/10 min. The mesoporous silica has an average pore diameter of from 2 to 50 nm, and the pores of the mesoporous silica are filled with the melt flowable fluororesin. The fluororesin compositions have excellent melt moldability for manufacturing molded products from the fluororesin composition that demonstrate high hardness.

Abstract: The invention provides a coating comprising fumed silica particles, wherein the fumed silica particles comprise aggregates of primary particles, wherein (a) the primary particles have a bimodal or multimodal particle size distribution representing populations of particles having at least a smallest average primary particle size and a largest average primary particle size, and wherein primary particles having a smaller average primary particle size are attached to primary particles having a larger average primary particle size, or (b) the aggregates have a bi-modal or multi-modal aggregate size distribution, and a carrier. The invention additionally provides a method for preparing a coated article comprising the coating.

Abstract: The present invention provides an epoxy resin composition exhibiting good workability in drilling, molding, and desmearing as well as good interlayer adhesion strength. This epoxy resin composition comprises an epoxy resin, a curing agent, and an inorganic filler. The epoxy resin is composed of a dicyclopentadiene-based epoxy resin and a novolac-based epoxy resin. The curing agent is a biphenyl-based phenol resin. The inorganic filler is composed of aluminum hydroxide and granular silica having an epoxy-silane treated surface. The epoxy resin composition contains 20 to 50% by weight of the granular silica. The epoxy resin composition contains 2 to 15% by weight, based on total weight of granular silica, of the aluminum hydroxide.

Abstract: It is an object of the present invention to provide a tire rubber composition excellent in performances such as silica dispersibility and processability. The present invention relates to a tire rubber composition, comprising: a rubber component that contains an epoxidized natural rubber; silica; and a silane coupling agent, wherein the amount of the epoxidized natural rubber in 100% by mass of the rubber component is 15% by mass or more, the silica has a CTAB specific surface area of 180 m2/g or more and a BET specific surface area of 185 m2/g or more, and the silane coupling agent contains a mercapto group.

Abstract: A light diffusing thermoplastic resin composition comprising: (A) a transparent thermoplastic resin; and (B) organic modified functional silica particles having 5 ??? to 15 ??? of the average particle size and 600 m2/g to 800 m2/g of the BET specific surface area, wherein the amount of component (B) is 0.05 to 20% by weight of total amount of components (A) and (B), has an excellent light diffusing property and a high total light transmittance, inhibits discoloration, when melt-processed or used.

Abstract: A compact camera module that contains a generally planar base on which is mounted a lens barrel is provided. The base, barrel, or both are molded from a polymer composition that includes a thermotropic liquid crystalline polymer and a plurality of mineral fibers (also known as “whisker”). The mineral fibers have a median width of from about 1 to about 35 micrometers and constitute from about 5 wt % to about 60 wt % of the polymer composition.

Abstract: A composition for forming a hydrophilic coating includes an organic binder having an average particle size from about 1 to about 100 nm and an inorganic binder having an average particle size from about 1 to about 40 nm. The composition further includes an inorganic photocatalyst that catalyzes an oxidation-reduction reaction. Characteristically, the photocatalyst includes a photocatalytic metal oxide having an average particle size from about 1 to about 50 nm. Advantageously, coatings formed from the composition have improved stain resistance, low contact angle, and resistance to dirt adherence, while maintaining a clear optical character.

Abstract: A highly loaded silica wet masterbatch utilizing a functionalized silica dry precipitated silica with a specific surface area in the range of 100 to 300 m2/gm treated with a plurality of silanes coupling agents to form a wet polymer silica masterbatch, then blending the masterbatch with a latex rubber component that includes a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber using a plurality of coupling agents simultaneously.

Abstract: A rubber composition for use in tire treads including 100 parts by mass of a diene rubber and from 70 to 100 parts by mass of silica, wherein the diene rubber includes from 50 to 90 mass % of a terminal-modified styrene-butadiene rubber having a hydroxy group on an end of the molecule, and from 10 to 25 mass % of a butadiene rubber; the silica has a BET specific surface area of from 45 to 550 m2/g, a CTAB specific surface area of from 40 to 525 m2/g, a particle size distribution width Ld((d84?d16)/d50) of at least 0.91, and wherein V(d5-d50)/V(5-d100) is at least 0.66; and a durometer hardness of the rubber composition when measured at 20° C. is from 70 to 80.

Abstract: Dispersion which is free of binders and which contains silica and at least one superplasticizer, the silica being a precipitated silica having a surface area greater than 50 m2/g, the aggregates and/or agglomerates in the dispersion having a median diameter of less than 1 ?m and the proportion of silica being from 5 to 50% by weight, based on the total amount of the dispersion, and a process for the preparation thereof and the use thereof as a concrete admixture in cement-containing preparations.

Abstract: A compound of substantially transparent resin and amorphous silica particulate is disclosed. The silica particulate are nanometric size and dispersed throughout in the resin. The compound can be used to make an article to diffuse and transmit light from a point source of light.

Abstract: A composition includes polymer and dispersed infrared-reflective clusters of titanium dioxide primary particles. The titanium dioxide primary particles are cemented together with precipitated silica and/or alumina to form clusters. The titanium dioxide primary particles have an average particle diameter in the range of from about 0.15 to about 0.35 micron, while the clusters of titanium dioxide primary particles have an average cluster diameter in the range of from about 0.38 to about 5 microns and a geometric standard deviation (GSD) in the range of from about 1.55 to about 2.5.

Abstract: A resin composition comprising a polylactic acid-based resin (A) and methacrylic resins (B), wherein the methacrylic resins having at least (a) a difference of 10° C. or more in glass transition temperature or (b) a difference of 3% or more in syndiotacticity; it is preferred that at least one of the methacrylic resins (B) is a methacrylic resin having a weight average molecular weight of 50,000 to 450,000, a glass transition temperature of 110° C. or higher and a syndiotacticity of 40% or more, and that the resin composition further contains a multilayer structure polymer formed as particles each consisting of a core layer and one or more shell layers covering it (C). A molded article made of said resin composition.

Abstract: The present invention relates to an anti-reflective coating composition that can be used to form at least two layers by a single coating process and is allowed to provide an anti-reflective coating film having more improved interface adhesion between the formed layers and scratch resistance, and an anti-reflective coating film manufactured using the same.

Abstract: An improvement over known hydraulic fracturing fluids. Boundary layer kinetic mixing material is added to components of fracturing fluid wherein kinetic mixing material is a plurality of particles wherein at least 25% of particles are several types, i.e., having surface characteristics of thin walls, three dimensional wedge-like sharp blades, points, jagged bladelike surfaces, thin blade surfaces, three-dimensional blade shapes that may have shapes similar to a “Y”, “V” or “X” shape or other geometric shape, slightly curved thin walls having a shape similar to an egg shell shape, crushed hollow spheres, sharp bladelike features, 90° corners that are well defined, conglomerated protruding arms in various shapes, such as cylinders, rectangles, Y-shaped particles, X-shaped particles, octagons, pentagon, triangles, and diamonds.

Abstract: The present invention relates to a dispersion of hybrid organic-inorganic nanocomposite molecules comprising discrete inorganic silica nanoparticles that are covalently bonded to organic polymers, wherein the dispersion has a high solid content (>30% wt.) and high silica content (>35% wt.) with low coagulum (about 100-400 ppm or about 0.05% wt or less). The hybrid organic-inorganic nanocomposite is prepared by (1) hydrolyzing silane monomers at acidic conditions; (2) surface treating inorganic silica nanoparticles with silane monomers; (3) stabilizing the surface-treated inorganic silica nanoparticles with an amine stabilizer; and (4) reacting organic monomers with surface-treated inorganic silica nanoparticles.