Abstract: A photocurable coating composition is provided comprising (1) porous or hollow inorganic oxide fine particles, (2) a hydrolytic condensate of a bissilane compound or a cohydrolytic condensate of a bissilane compound and another hydrolyzable organosilicon compound, and (3) a photoacid generator. Due to the presence of voids in the resin, the cured coating has a low refractive index.

Abstract: The invention relates to an adhesive composition, including: 10 to 95% of a moisture cross-linkable polymer (A), the main chain includes 2 silyl terminal groupings, each of which includes at least one hydrolyzable group bonded to the silicon atom; 1 to 60% of a mineral filler (B) in the form of particles having a size of between 1 nm and 0.2 mm; and 0.2 to 7% of a cross-linking catalyst (C) consisting of titanium tetraisopropoxide. The invention also relates to the use of said composition as glue for repair or attachment.

Abstract: Disclosed is a minable type silicone rubber composition including as an essential components: (A) 100 parts by weight of an organopolysiloxane represented by the following average compositional formula (I) and having a polymerization degree of at least 100; R1aSiO(4-a)/2 ??(I) wherein R1 are, identical or different, unsubstituted or substituted monovalent hydrocarbon groups, and a is a positive number of 1.95 to 2.05; (B) 70 to 150 parts by weight of fumed silica having a specific surface area of more than 200 m2/g; (C) 0.1 to 30 parts by weight of an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to silicon atoms in one molecule; and (D) 0.1 to 10 parts by weight of a hydrosilylation reaction catalyst.

Abstract: An organic/inorganic hybrid material is provided, which includes an organic polymer and a plurality of inorganic nanoparticles, wherein the inorganic nanoparticles are self-connected or connected via a linker to constitute an inorganic network structure. By forming the inorganic network structure through interconnection of inorganic nanoparticles, the inorganic content in the hybrid materials can be drastically increased to improve the properties thereof. A method for fabricating the organic/inorganic hybrid material is also provided.

Abstract: The present invention provides a silicone resin composition for encapsulating light-emitting elements with which encapsulation using a potting method can be easily accomplished, and which can be easily molded into a lens shape such as hemisphere, parabola, or the like. The composition can impart high transparency to the resulting encapsulating lens molded using a potting method. More particularly, the invention provides a silicone resin composition for encapsulating light-emitting elements, including 2 to 25 wt % of silica with a mean particle size of 1 to 30 nm based on the total amount of Components (A) and (B); and having a viscosity (23° C.) of more than 10 Pa·s and less than 70 Pa·s, and a thixotropic index of 2.0 to 5.5; the composition being used for encapsulation using a potting method.

Abstract: A polyorganosiloxane composition that can be vulcanized at high temperature to a silicone elastomer, useful in the field of the manufacture of electrical wires or cables having an improved fire performance is provided. The composition includes a semi-reinforcing filler chosen from the group composed of:—calcined kaolin powders, preferably that have undergone a chemical surface treatment;—talc;—calcium carbonate that may or may not have been surface-treated, for example with vinylsilanes, aminosilanes or (reactive or unreactive) silicone oils; and mixtures thereof.

Abstract: A resin composition for surface-mountable (SMT) camera modules which is excellent in the balance between heat resistance, rigidity, strength or moldability and surface exfoliation characteristics is provided by using a liquid-crystal polyester resin composition which comprises 100 parts by mass of a liquid-crystal polyester, 15 to 60 parts by mass of talc having a number-mean particle diameter of 10 to 50 ?m, 25 to 50 parts by mass of glass fiber having a number-mean fiber length of 100 to 200 ?m, 6 to 20 parts by mass of titanium oxide, and 2 to 10 parts by mass of carbon black and which exhibits a melt viscosity of 10 to 100 Pa S as determined at a shear rate of 100 sec?1 and 370° C. and a deflection temperature under load of 220° C. or above.

Abstract: This invention relates to compositions suitable for the formation of an adhesive layer used for in-mold decoration. This invention also relates to in-mold decoration tape or strip, comprising: a carrier layer; a release layer; a durable layer; and an adhesive layer which comprises an adhesive binder, a polymeric particulate material and an inorganic particulate material.

Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.

Abstract: A thermosetting resin composition and a prepreg or laminate using the same are provided. The thermosetting resin composition includes an epoxy resin and a curing agent, in which the curing agent is a dual-curing agent system formed with a multi-functional aromatic polyester curing agent in combination with a phenolphthalein benzoxazine phenol aldehyde or a poly(styrene-co-maleic anhydride). An organic or inorganic fiber reinforced material is impregnated with the thermosetting resin composition to form a prepreg, and the prepreg is bonded to a substrate with a metal foil disposed thereon, to form a laminate.

Abstract: Disclosed is a coating composition for coating polycarbonate substrates. The coating composition comprises (A) at least one radiation-curing binder, (B) nanoparticles, and (C) optionally at least one reactive diluent and/or optionally a solvent, and wherein the nanoparticles (B) comprise silicon dioxide nanoparticles, the silicon dioxide nanoparticles have a d50 of between 80 and 300 nm, and the silicon dioxide nanoparticles have a particle size distribution wherein less than 15% by weight of the particles have a size in the range of less than 80 nm, 75% to 95% by weight of the particles have a size in the range from 80 to 300 nm, 0% to 5% by weight of the particles have a size in the range from more than 300 to 1000 nm, and 0% to 5% by weight of the particles have a size in the range from more than 1000 nm to 10 000 nm.

Abstract: The present invention relates to a low-dielectric resin composition having sufficiently low dielectric constant and dissipation factor, a low-dielectric film formed of the low-dielectric resin composition, processes for producing the low-dielectric resin composition and the low-dielectric film, and a coating agent for low-dielectric films. According to the present invention, there are provided (1) a low-dielectric resin composition including hollow silica particles having an average particle size of from 0.

Abstract: A method for the preparation of a coated substrate is provided, comprising the steps of providing a substrate; applying on at least one side of said substrate a first coating layer of a first aqueous composition comprising porous anionic pigment particles having a BET surface area of above 40 m2/g and a binder and applying on said first coating layer, a second coating layer of a second, aqueous composition comprising cationic colloidal silica or silicate based particles and polyalkylene glycol. It has been found that a substrate coated with the combination of the first coating layer and the second coating layer provides a suitable substrate for high-quality and fast-drying inkjet printouts.

Abstract: A sealant composition which may be applied between two substrates in a solar panel provides consistent rheology, high weatherability, acts as a moisture barrier, and has low conductivity. The sealant composition preferably includes a rubber component, at least one rheology modifier, an adhesion promoter, a flow modifier, a stabilizer, and a high level of carbon black.

Abstract: Polyorganosiloxane compositions heat-vulcanizable into silicone elastomers are useful in the field of electric wire or cable production via vulcanization employing salt baths.

Abstract: The present invention concerns shape memory composites, methods of preparing same and the use of these composites, for example, for products prepared by injection molding techniques or coating applications.

Abstract: A method of compounding a modified, epoxidized natural rubber for use as a tire tread which includes the steps of modifying an epoxidized natural rubber containing a ring-opened epoxy group, compounding the modified, epoxidized natural rubber with another rubber, to form a rubber compound, together with silica and/or carbon black to form a rubber composition, and forming the rubber composition into a tire tread.

Abstract: Mixtures comprising inorganic compounds and effect substances, where the inorganic compounds are present as agglomerates and these agglomerates have a specific surface area greater than 10 m2/g, a particle size of from 1 to 20 ?m, a loss on ignition of from 1 to 20%, a carbon content of from 0.1 to 5%, a methanol wettability of from 10 to 90% and an effect substance absorption of from 100 g to 4000 g, based on 100 g of inorganic compound. These mixtures comprise, as effect substances, UV absorbers, stabilizers, antioxidants, flame retardants, antifogging additives, lubricants, plasticizers, antistats, dyes, optical brighteners, IR dyes or biocides. The inorganic compounds are selected from the group of oxides, carbonates, hydrogencarbonates, phosphates, sulfates, hydroxides, silicates and sulfides and comprise alkali metal, alkaline earth metal or transition metals.

Abstract: The present invention relates to an aqueous coating material containing polymer (I), colloidal silica (II), and nonionic surfactant (III) with an HLB value of 16 or more. The polymer (I) is obtained by copolymerization of monomer mixture (M) that contains 0.2 to 10% by mass of monomer (a) having two or more radically polymerizable groups. The solid content of the colloidal silica (II) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the polymer (I). The content of the nonionic surfactant (III) is 0.01 to 10 parts by mass with respect to 100 parts by mass of the polymer (I). The present invention also relates to a painted article where the aqueous coating material is applied. Therefore, an aqueous coating material and a painted article capable of expressing stain resistance and weather resistance can be provided by reducing a water contact angle.

Abstract: The invention is directed to a crumbly, water-absorbing, soil-like hydrogel. The hydrogel comprises finely comminuted mineral substances, such as igneous rock; water-soluble alkali-silicate; solid and liquid nutrient additives; and ballast, bound in a cross-linked polymer. The hydrogel is structured like a sponge and absorbs water and liquids when in contact with water or aqueous liquids. The mineral substances present in the hydrogel may be present in an amount of at least 30% by weight of the dried hydrogel. Also, the invention encompasses methods of producing acidic and neutral to weakly alkaline hydrogels.

Abstract: Nanocomposite compositions containing a graft polymer and a filler such as nano-sized silica having flame resistant properties are described.

Abstract: A composite material having polymeric resin with disperse phases of reinforcing fibers and nanoparticle materials and its manufacture is disclosed herein. The nanoparticles may be bound together and added to the polymeric resin as microscale aggregations, and then unbound to create a disperse phase of nanoparticles in the resin. In other embodiments, the nanoparticles may be bound to a substrate, such as long fibers, and added to a polymeric resin. The nanoparticles are then unbound from the substrate and dispersed throughout the polymeric resin. The polymeric resin may have multiple components where one component may control the dispersion of the nanoparticles.

Abstract: A method of reducing a surface glossiness of an organopolysiloxane-cured article is provided. The method comprises preparing the liquid organopolysiloxane composition for matting comprising: (A) 100 parts by weight of a thermosetting liquid organopolysiloxane composition having a specific gravity larger than the component (B), and (B) 0.1 to 100 parts by weight of a hollow filler having a melting point of at least 150° C., and a particle size of up to 200 ?m, casting the liquid organopolysiloxane composition as a potting material or coating material; and curing the liquid organopolysiloxane composition at a temperature of 10 to 160 C for 30 to 180 minutes, whereby the hollow filler floats to the surface of the organopolysiloxane and forms surface irregularities on the surface of the cured article during curing to provide a surface glossiness of up to 40 in a cured article having a matted surface.

Abstract: By a rubber composition for a side wall, including a rubber component containing a natural rubber component consisting of a natural rubber and a modified natural rubber, 20 to 60 parts by mass of silica, and 0.5 to 15 parts by mass of at least any one of a terpene-based resin and a rosin-based resin based on 100 parts by mass of the rubber component, and a pneumatic tire provided with a side wall rubber using the same, a rubber composition for a side wall in which both of maintenance of properties desired in a rubber composition for a side wall such as durability and improvement in processibility can be realized while a use amount of a raw material derived from a petroleum source is reduced, and a pneumatic tire in which running safety is improved by providing with a side wall rubber using the same, are provided.

Abstract: The present invention relates to a chafer using a rubber composition for a chafer comprising: (A) a diene rubber comprising (A1) 10 to 60% by mass of a butadiene rubber containing 2.5 to 20% by mass of a 1,2-syndiotactic polybutadiene crystal, (A2) 5 to 50% by mass of a tin-modified butadiene rubber polymerized with a lithium initiator and having 50 to 3000 ppm content of tin atoms, 5 to 50% by mass of vinyl bond amount and a molecular weight distribution of at most 2.0, and (A3) 20 to 75% by mass of a diene rubber other than the butadiene rubber (A1) and the tin-modified butadiene rubber (A2); and (B) 5 to 30 parts by mass of silica; and (C) 30 to 55 parts by mass of carbon black based on 100 parts by mass of the diene rubber components.

Abstract: Disclosed is a rubber composition for separator seal, comprising (A) a mixture of two or more alkenyl-containing liquid organopolysiloxanes having different weight average molecular weights, (B) an organohydrogenpolysiloxane, (C) fumed silica having a BET specific surface area of 50-400 m2/g, (D) carbon black having a BET specific surface area of 30 to 120 m2/g, an iodine adsorption value of 30 to 120 mg/g, and a DBP absorption value of 100 to 200 ml/100 g, and (E) an addition reaction catalyst cures into a product which is useful as a separator seal in PEFCs.

Abstract: The invention relates to a composition comprising a binder, filler particles and water, wherein the binder comprises amorphous silica and a vinyl-functional silicone polymer. The invention also relates to a method of making this composition as well as to a method of coating a substrate comprising applying the composition onto the substrate.

Abstract: A fluororesin film, of which discoloration, a change in the visible light transmittance and a decrease in the mechanical strength can be suppressed for a long period of time even though it contains titanium oxide, the fluorescent film having a pigment dispersed in a fluororesin, which pigment are composite particles each comprising a particle containing titanium oxide, a first covering layer containing cerium oxide and a second covering layer containing silicon oxide in this order from the inside, wherein the amount of cerium oxide is from 5 to 30 parts by mass based on 100 parts by mass of titanium oxide, the amount of silicon oxide is from 5 to 60 parts by mass based on 100 parts by mass of titanium oxide, and the average particle size of the composite particles is from 0.15 to 3 ?M; and a process for its production.

Abstract: A coating composition is provided, the starting materials of which comprise nano SiO2, film-forming substance, film-forming aid, accelerator, acid, and water. The composition has pH of 3-9. A passivated zinc-plated material is also provided. The zinc-plated material comprises zinc-plated substrate and passivated coat adhered to the surface of the zinc-plated substrate, wherein the passivated coat is formed by curing the coating composition. The coating composition can impart to the zinc-plated material excellent corrosion resistance, water resistance, high temperature resistance, surface conductivity, and adhesion to the zinc-plated substrate. Additionally, the coating composition contains no Cr6+, and satisfies the requirement of EU RoHS Directive.

Abstract: Natural amorphous silica filler products featuring high brightness, low oil absorption, fine particle size, and low crystalline silica content are described. Methods for making, using, and measuring the properties of the natural amorphous silica filler products are also described. The natural amorphous silica filler products described herein may be useful in a variety of products including, but not limited to, polymers, sealants, paints, caulks, latex, architectural coatings, industrial coatings, pozzolan, glass catalysts, ceramic glazes, and anti-blocking applications.

Abstract: The invention relates to a coating composition comprising a polyurethane polyol composition comprising the reaction product of a polyisocyanate and a polyol, and modified nanoparticles of silica and/or alumina, and to a process for preparing such coating composition.

Abstract: This invention discloses a curable silicone resin composition used for sealing a light-emitting diode device, comprising at least a silicone resin having a refractive index of 1.50˜1.55 after curing and a silicon oxide filler having an average particle diameter of 1˜10 ?m dispersed uniformly in the said silicone resin at the concentration of 1˜30 mass % and a light-emitting diode device using the same.

Abstract: A composite material includes a polymer matrix and a particulate material dispersed within the polymer matrix. The particulate material includes metal oxide coated alumina hydrate. The particulate material has a 500 psi Compaction Volume Ratio of at least about 4.0 cc/cc. The metal oxide coating may include precipitated silica. The particulate material may have a Hg Cumulative Pore Volume of at least 1.65 cc/g.

Abstract: A formulation containing: (i) at least one organoalkoxysilane and/or at least one organoalkoxysiloxane; (ii) at least one inorganic oxidic powder; and (iii), optionally, an organic or inorganic acid is provided. The formulation contains from 5 to 50% of the inorganic oxide powder and has a viscosity of less than 1500 mPa·s. A weight ratio of the organoalkoxysilane and/or at least one organoalkoxysiloxane to the inorganic oxidic powder is from 19:1 to 1:1.

Abstract: The present invention relates to a precipitated silica for elastomers and, more particularly, to a new highly dispersible and highly reinforcing precipitated silica for elastomers. The invention further provides the process for its production and rubber products made therefrom.

Abstract: An aqueous polymer dispersion that includes a) a polyurethane dispersion having an average particle size of 60 to 350 nm and b) an aqueous silicon dioxide dispersion having a particle diameter of the SiO2 particles of 20 to 400 nm. The dispersion is prepared by mixing the polyurethane dispersion (a) with the silicon dioxide dispersion (b). The aqueous polymer dispersion can be used in adhesive compositions, which can be used to bond substrates together, especially substrates that are structural components of shoes.

Abstract: A rubber composition for a tire superior in low heat build-up (tan ?) and superior in fracture strength is provided. A rubber composition for a tire comprising (B) 5 to 80 parts by mass of silica based on 100 parts by mass of (A) including (a) 10 to 60% by mass of a butadiene rubber including 2.5 to 20% by mass of 1,2-syndiotactic polybutadiene crystals, (b) 5 to 60% by mass of a modified diene rubber and (c) 20 to 75% by mass of a diene rubber other than (a) and (b).

Abstract: The present invention provides a polyphenylene sulfide synthetic hair filament. The synthetic hair filament comprises (A) a polyphenylene sulfide resin; and (B) an inorganic particle quencher additive, wherein said PPS resin melt index range is 60˜110, wherein said inorganic quencher additive is added at 0.1˜2.0 parts by weight on a 100 parts by weight PPS resin. The synthetic hair filament has a filament size of about 30 to about 80 dtex. The polyphenylene sulfide resin (A) has a p-phenylene sulfide repeating unit above 85% mole. The inorganic particle quencher additive may be of silicon dioxide, talc or the combinations thereof. A suitable inorganic particle quencher additive has an average diameter range of 0.01˜3.0 ?m.

Abstract: Provided is a hydrophilic precipitated silica which is well suited to use in silicone rubber formulations (RTV-1, RTV-2, HTV and LSR), particularly well suited to use in HTV silicone rubber formulations. It has a BET surface area of 185˜260 m2/g, a CTAB surface area of 100˜160 m2/g, a BET/CTAB ratio of 1.2˜2.6, and a conductivity of <250 ?S/cm. Also provided are a process for producing the precipitated silica and the use of the precipitated silica for thickening and reinforcing silicone rubber formulations.

Abstract: The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in aqueous and non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions. The dispersant is a compound of the formula wherein CY is selected from the group consisting of aliphatic monocyclic compounds having one double bond and aliphatic polycyclic compounds with or without one double bond, or with or without bridge carbons; (n+x+y+z)>1; and R?—H, —SO3M, —CO2M, —PO3M, —OCR? wherein M=H, or Na, K, Li, Ca, Mg, NH4, NH(R1)2, NH2R1, N(R1)3 where R1 is selected from the group consisting of C1-C6 alkyl and C1-C6 hydroxyalkyl; and R??C2-C22 alkyl or alkenyl.

Abstract: An oily surface adhesive room temperature curing type organopolysiloxane composition includes: (A) at least one of organopolysiloxanes represented by specific general formulas; (B) heavy calcium carbonate of which the surfaces have been treated with a fatty acid and/or paraffin treating agent; (C) an oil-absorbing carbon powder; (D) a silane represented by a specific general formula or a partial hydrolyzate; (E) a curing catalyst; and (F) an organic compound having one isocyanate group in its molecule.

Abstract: A non-black filled perfluoroelastomer composition comprising a) a perfluoroelastomer, b) 0.1-30 phr colloidal silica filler having an average particle size <100 nm, and c) a curative is made by 1) mixing an aqueous perfluoroelastomer dispersion with a sol of colloidal silica having an average particle size <100 nm, 2) isolating the perfluoroelastomer composition from the aqueous dispersion and 3) mixing the composition with curative. Cured compositions have surprisingly better compression set than do similar compounds containing hydrophilic silica.

Abstract: The invention provides coated substrates comprising a substrate; and a coating on at least one surface of the substrate comprising vermiculite, polymer capable of forming a film, dispersion agent for the vermiculite in the polymer, said dispersion agent bearing a negative charge, and cross-linking agent. The invention also provides articles coated with such coatings and methods for making the coated substrates and articles.

Abstract: The present invention relates to a composition for a thermosetting silicone resin, including: (1) an organopolysiloxane having a silanol group at an end thereof; (2) an alkenyl group-containing silicon compound; (3) an epoxy group-containing silicon compound; (4) an organohydrogensiloxane; (5) a condensation catalyst; (6) a hydrosilylation catalyst; and (7) a silica particle, in which the (7) silica particle has a 50% volume cumulative diameter of from 2 to 50 ?m, a content of particles having a particle size of 1 ?m or less of 15% by number or less and a content of particles having a particle size of 60 ?m or more of 15% by number or less.

Abstract: Rubber compounds containing a halobutyl elastomer, at least one additional elastomer, a mineral filler and at least a three component mixed modifier system comprising a silane compound, a phosphine compound and an additive containing at least one hydroxyl group and a functional group containing a basic amine. A process for preparing the compounds is also disclosed. The compounds are particularly useful in tire treads and exhibit improved processability, traction, rolling resistance and wear properties.

Abstract: Aqueous polymeric dispersions comprising a mixture of: (a) a component selected from the group consisting of polyvinylacetates, polyvinylacetate copolymers, and combinations thereof; and (b) SiO2 particles having an average particle diameter of 1 to 400 nm; their use as adhesives and coatings; processes for preparing such dispersions; and substrates coated and/or adhered therewith.

Abstract: A liquid crystalline polyester resin composition is provided, by which a molded article with an enhanced specific modulus can be produced. The liquid crystalline polyester resin composition comprises mica fillers in an amount of 15 to 30 parts by mass and carbon fibers with specific volume resistance of 108 ?cm or more in an amount of 5 to 20 parts by mass with respect to 100 parts by mass of the liquid crystalline polyester.

Abstract: A fluoropolymer coating that includes nanoparticles for providing the coating with improved release characteristics together with improved abrasion resistance. In one embodiment, the nanoparticles are silica particles that may be incorporated into the coating by adding colloidal silica to the liquid coating formulation that is applied to a substrate, typically over a primer, and then cured. After the coating is cured, the coating demonstrates enhanced release characteristics together with improved abrasion resistance. It has been unexpectedly observed that a combination of desired release characteristics and improved abrasion resistance is found when the average particle size of the nanoparticles is between 30 and 120 nm, with the abrasion resistance generally increasing with increasing particle size.

Abstract: Biolaminate assemblies for use as high pressure laminates are provided. In one embodiment, the biolaminate assembly includes a surface wear layer including polylactic acid and at least one of a plastic and mineral. The surface wear layer is adapted to be laminated or thermoformed to a nonplastic rigid substrate. The surface wear layer has a wear resistant range greater than about 400 cycles using tabor abrasion and temperature resistance range from about 212° F. to about 356° F. such that the biolaminate assembly is suitable for use as a high pressure laminate.

Abstract: The present invention provides a rubber composition and a pneumatic tire using the rubber composition. The rubber composition which comprises: a rubber component comprising a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber with the styrene-butadiene copolymer rubber being 70% by weight or more of the entire blend, and the entire content of styrene is 30 to 40% by weight of the entire rubber component; silica in an amount of 10 to 60 parts by weight per 100 parts by weight of the rubber component; a specific silane coupling agent, i.e., a bis (alkoxysilylalkyl)polysulfide having a polysulfide chain in which the distribution of sulfur is specified, in an amount of 1 to 20% by weight of the amount of silica; and carbon black, the sum of the amount of silica and carbon black being 60 to 130 parts by weight per 100 parts by weight of the rubber component.