Abstract: The present invention relates to an organic silica master batch elastomer prepared by mixing a conjugated diene based copolymer, a vinyl aromatic copolymer or a mixture thereof prepared by solution polymerization with organically modified silica in which the surface of silica is modified with a particular organosilicon compound and a silane coupling agent in solution. The resultant organic silica master batch elastomer exhibits improved mechanical properties, wear resistance and blending processability, and can provide the effect of extending durability of a tire.

Abstract: Rubber compound containing at least one nanoscale, magnetic filler and at least one non-magnetic filler. Vulcanizable mixture containing the rubber compound and at least one crosslinking agent and/or vulcanization accelerator. Molding obtainable from the vulcanizable mixture by heat treatment or action of an electrical, magnetic or electromagnetic alternating field.

Abstract: Particles of metal and non-metal oxides may be readily functionalized with organosilyl groups, even in the absence of catalysts, when methylene-spaced alkoxysilanes are used for functionalizing. When an excess of alkoxy groups relative to metal-OH groups are present, the resulting functionalized particles exhibit high reactivity, particularly upon exposure to moisture. Functionalization is particularly useful with particles of organopolysiloxane resins.

Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.

Abstract: Disclosed is a one-pack type epoxy resin composition containing an epoxy resin, dicyandiamide, an epoxy resin adduct compound, and a non-latent imidazole compound. The one-pack type epoxy resin composition is capable of being cured at a low temperature, while having excellent heat resistance and sealing properties. Also disclosed is use of the one-pack type epoxy resin composition.

Abstract: A color agent for a road marking material comprising composite particles having an average particle diameter of 0.01 to 10.0 ?m, said composite particles comprising: inorganic particles; a gluing agent coating layer formed on surface of said inorganic particle; and an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said inorganic particles. The color agent for a road marking material, contains no harmful elements and exhibits excellent tinting strength, hiding power, light resistance and heat resistance, and is suppressed in surface activity thereof. The road marking material using the color agent, shows a less change in hue with the passage of time and an excellent retroreflective property.

Abstract: A novel process is used to prepare synthetic rubbers (B) which feature very narrow molecular weight distribution and a correspondingly low value for the polydispersity index. The preparation process encompasses the treatment of a synthetic rubber with ultrasound, where the resultant synthetic rubber (B) has a lower weight-average molecular weight (Mw) than the synthetic rubber (A) used. The resultant synthetic rubbers (B) have excellent suitability for processing via extruder processes or injection-moulding processes.

Abstract: An organopolysiloxane composition suited for magnesium alloy bonding comprises (A) a specific organopolysiloxane, (B) a non-reactive silicone oil, (C) zinc oxide surface treated with a silane or siloxane treating agent, (D) heavy calcium carbonate surface treated with a paraffin treating agent, (E) an organosilicon compound having at least three hydrolyzable radicals or a partial hydrolyzate thereof, (F) a silane coupling agent having at least one epoxy radical, and (G) a titanium chelate catalyst. The composition has improved chemical resistance.

Abstract: There is provided a liquid preparation for forming an epoxy resin having curing properties combining high transparency and high bending strength while maintaining advantageous handling properties as in a liquid state. A liquid preparation for forming an epoxy resin comprising: an A agent; and a B agent; wherein the A agent contains a modified epoxy resin (I) formed from at least one type of compound (i) having in a molecule thereof, at least one functional group of Formula (1): (where R1 and R2 individually represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group or a halogenated, aminated or nitrated derivative of any of the groups) and a compound (ii) having a glycidyl group in a molecule thereof, and an inorganic particle (II); and the B agent contains a curing agent (III).

Abstract: Particles obtained by silylating particles of a metal oxide or silicon oxide SOl with a silane containing at least one blocked isocyanate group are easily incorporated into coating materials such as clearcoats and topcoats, and imbue these coatings with high scratch resistance even at low filler content.

Abstract: A self-healing coating includes a polymer matrix, a polymerizer, and a set of capsules containing a corresponding activator for the polymerizer. The polymerizer may be present in another set of capsules, or the polymerizer may be phase separated from the polymer matrix. The coating may be prepared by depositing a coating composition on a substrate and solidifying the coating composition, where the coating composition includes the polymerizer, the activator capsules and a matrix precursor. A combination of polymerizer capsules and activator capsules may be part of a kit, which may be used to provide self-healing properties to a coating. The polymerizer and the activator may be wet-curable, and coatings containing the polymerizer and activator may be able to self-heal when in contact with water.

Abstract: Silicas modified with groups of the general formula (I) RaSiR1bOc—??(I) where at least one of R or R1 is a >C3 hydrocarbon radical are useful in preparing stable dispersions of basic substances, the silica permitting a decrease in the shear viscosity h for a storage time of 1 week at room temperature (25° C.) to not more than 50% of the initial viscosity value, the viscosity being measured by means of cone/plate geometry with a shearing gap of 105 ?m and a shear rate of 0.5 s?1 at 25° C.

Abstract: A method of preparing carbon nanotube/polymer composite is disclosed, which includes: forming a layer of TiO2 on carbon nanotubes (CNTs) with a precursor of TiO2 by a sol-gel or hydrothermal method, a weight ratio of the TiO2 precursor to CNT being 0.3:1 to 30:1; modifying the TiO2-coated CNTs with a coupling agent to improve the affinity thereof to a polymer; and mixing a polymer with the resulting modified TiO2-coated CNTs to form a TiO2-coated CNT reinforced polymer composite. The mechanical properties of the polymer composite can be enhanced by using an additional fiber reinforcement material.

Abstract: A composition containing a silicone and one or more silanized, structure-modified, pyrogenic silicas which contain groups fixed to their surface is described. The silicone containing silanized, structure-modified, pyrogenic silicas exhibit advantageous rheological properties, such as lowered crepe hardening, which facilitates the processing operations even after storage or transport of the silicone composition.

Abstract: A polycarbonate composition comprising a polycarbonate-polysiloxane copolymer resin and a glass flake additive wherein the polycarbonate-polysiloxane copolymer resin has a silicone content in the range of from 3.5 weight % to 7 weight % based on the total weight of the polycarbonate composition and wherein the polycarbonate-polysiloxane copolymer has a haze of less than 10% and wherein the glass flake additive is present in the range of 0.025 weight % to 0.70 weight % based on the total weight of the polycarbonate composition.

Abstract: The invention relates to a method for producing barium sulphate having an organically modified surface, barium sulphate produced according to said method and to the use thereof.

Abstract: Oligomers are prepared by polymerizing unsaturated silanes, optionally along with a copolymerizable ethylenically unsaturated monomer. The oligomers are particularly useful for preparing core-shell particles.

Abstract: Additive particles may be employed in sufficient amounts to impart superhydrophobicity to a coating system in which the additive particles are incorporated. The additive particles include carrier microparticles and a dense plurality of nanoparticles adhered to the surfaces of the carrier microparticles (e.g., preferably by electrostatic deposition or covalent bonding). The additive particles are advantageously incorporated into a coating material (e.g., a polymeric material) in amounts sufficient to render a substrate surface superhydrophobic when coated with the coating material. The substrate may be rigid (e.g., glass, ceramic or metal) or flexible (e.g., a polymeric film or sheet or a fabric). In some preferred embodiments, both the microparticle and nanoparticles are formed of silica and are surface treated with a hydrophobic treatment so as to impart superhydrophobic properties thereto.

Abstract: A curable composition contains: a) functionalized colloidal silica obtained from the reaction of surface hydroxyl groups of colloidal silica with at least one functionalizing silane of the general formula: (Rl)aSi(OR2)4?a wherein each R1 is, independently, a monovalent alkyl, cycloalkyl, aryl, alkaryl or aralkyl group of up to 18 carbon atoms, optionally possessing at least one chemically reactive functionality selected from the group consisting of alkenyl, acrylate and epoxy; b) at least one first curable monomer possessing at least one of alkenyl and acrylate functionality; c) at least one second curable monomer possessing epoxy functionality; d) at least one third curable monomer possessing at least one of alkenyl and acrylate functionality together with epoxy functionality, the third curable monomer replacing or supplementing the first and/or second curable monomer, provided, that when the third curable monomer replaces both the first and second curable monomers, the functionalized colloidal silica po

Abstract: A nanocomposite material suitable for electrical insulation includes a polymer compounded with a substantially homogeneously distributed functionalized nanoparticle filler. The nanocomposite material is produced by compounding the polymer with the functionalized nanoparticle filler by imparting a shear force to a mixture of the polymer and filler capable of preventing agglomeration of the filler whereby the filler is substantially homogeneously distributed in the nanocomposite material. The electrical insulation may be adapted for AC or DC high voltage, and may also be adapted for low or medium voltage to prevent formation of water tree structures.

Abstract: An opacifying particle including a pigment particle having an average particle diameter of from 0.005 to 5 microns and an index of refraction of at least 1.8; a first polymer attached to the surface of the pigment particle via a silane residue; and a second polymer which substantially encapsulates the pigment particle having the attached first polymer is provided. Also provided is a method for forming the opacifying particle as is a coating composition and a plastic composition including the opacifying particle.

Abstract: Corundum coated with a silicone compound containing a silicone resin, a resin composition containing the corundum, and an electronic device using an electronic part or semiconductor element, which transmits heat through the resin composition, by which a good affinity between a resin and corundum is obtained and a kneaded product assured of a low viscosity, a uniform dispersibility and when a curable resin is used as the matrix resin, a high curing rate, is yielded so that the handling and moldability of the resin composition can be enhanced.

Abstract: Silicone rubber mixtures containing structure-modified hydrophobic pyrogenic silica.

Abstract: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.

Abstract: The invention relates to a method of producing an aqueous dispersion comprising mixing at least one silane compound and colloidal silica particles to form silanized colloidal silica particles, mixing said silanized colloidal silica particles with an organic binder to form the dispersion. The invention also relates to a dispersion obtainable by the method, and the use thereof.

Abstract: The invention relates to a method of producing a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, comprising mixing at least one silane compound and colloidal silica particles, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention also relates to a dispersion obtainable by the method, and to a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention further concerns the use of the dispersion for coatings applications and as an additive.

Abstract: The present invention provides an abrasion resistant composition comprising fluoropolymer and an effective amount of micropulp to increase the abrasion resistance of an article such as a film formed from the composition by at least 25% as compared to film formed from the fluoropolymer by itself. In an especially preferred embodiment, the composition also contains an effective amount of pigment to further increase the abrasion resistance of film formed from the composition as compared to film formed from the fluoropolymer by itself. The invention is especially useful for films formed on a fuser roll.

Abstract: A composition is described comprising an organic polymer or a polymerizable monomer, having dispersed therein an azido polymer surface-modified particle phase, in an amount sufficient to reduce the flammability of the polymer.

Abstract: Provided are a thermoplastic resin composition, a thermoplastic resin molded product and an outside plate part of a vehicle capable of improving both characteristics of heat resistance and impact resistance while being compatible with each other. The thermoplastic resin composition contains: 65 to 86.5 mass % of a polyamide resin component (A), 13 to 25 mass % of an acid modified elastomer component (B), and 10 mass % or less of an olefin-based resin component (C) and/or 8 mass % or less of a filler component (D), wherein a dispersion phase of a core-shell type particle structure that is formed from the acid modified elastomer component (B) serving as a shell phase and the olefin-based resin component (C) and/or the filler component (D) serving as a core phase is dispersed in a matrix phase formed from the polyamide resin component (A).

Abstract: A sheath composition and a cable using the sheath composition are disclosed. The sheath composition contains a polyolefine resin and flame-retardant particles containing a metal hydrate. The flame-retardant particles are provided with a coating layer on the surfaces thereof and have a volume average particle diameter in a range from 1 to 500 nm.

Abstract: A precipitated silica characterized by BET 350-550 m2/g DBP number 350-400 g/100 g d50 5-15 ?m, and tamped density 20 to less than 70 g/l.

Abstract: The invention provides an anticorrosive surface coating composition comprising a resin system, and a hydrophobic metal oxide. The hydrophobic metal oxide is characterized by being produced via a wet process and having a surface area of at least about 350 m2/g. The invention also provides a method of producing such an anticorrosive coating composition. The invention further provides a substrate having a surface coated with the surface coating composition of the invention, as well as a method of imparting corrosion resistance to a surface of a substrate.

Abstract: The present invention provides a surface modifier for an inorganic solid, of which a small amount improves efficiently and significantly the affinity of the inorganic solid with a medium, thus obtaining a composition having no bad effects even if the inorganic solid is blended in a large amount. That is, the present invention provides a surface modifier for an inorganic solid, which comprises a polyether having a monomeric unit represented by the formula (I); a inorganic solid having at least a part of its surface coated with the surface modifier; and a composition comprising the surface modifier and a inorganic solid: wherein R1 represents a hydrogen atom, a C1-50 hydrocarbon or fluoroalkyl group, a C6-50 fluoroaryl group, a Si1-50 siloxysilylpropyl group, etc.

Abstract: Pyrogenically prepared, surface modified aluminum oxide, having the following physical chemical properties: Surface area [m2/g] ?50 to 150 Tamped density [g/L] ?25 to 130 Drying loss [%] less than 5 Loss on ignition [%] 0.1 to 15? C content [%] 0.1 to 15? pH value 3 to 9 is prepared by treating pyrogenically prepared aluminum oxide with a surface modifying agent.

Abstract: In order to provide a resin composition containing a lactic acid resin, and a molded article obtained from this resin composition which impart flame retardance to the resin composition and suppress a reduction in the molecular weight, use is made of a flame-retardant resin composition which contains a resin composition of which the major component is a lactic acid resin, and a surface-treated metallic hydroxide, wherein the surface-treated metallic hydroxide is added by 50-150 parts by mass per 100 parts by mass of the lactic acid resin.

Abstract: A rubber composition obtained by blending, into 100 parts by weight of a rubber, 10 to 100 parts by weight of carbon black surface-treated with a silane compound having an amino group (or groups), wherein at least 0.1 part by weight of the rubber ingredient is modified with maleic anhydride, whereby the heat buildup resistance and abrasion resistance of the rubber composition are enhanced and the scorch resistance is improved.

Abstract: Water absorption resistant polyimide pastes (or solutions), are particularly useful to make electronic screen printable pastes and the electronic components made from these pastes. A group of soluble polyimides and their solvents were discovered to be particularly resistant to moisture absorption. These polyimide solutions optionally contain polyimides also containing cross-linkable monomers and/or thermal cross-linking agents. In addition, these polyimide pastes may optionally contain adhesion promoting agents, blocked isocyanates, metals, metal oxides, and other inorganic fillers. The polyimide pastes (or solutions) of the present invention have a polyimide with a glass transition temperature greater than 250° C., have a water absorption factor of less than 2%, and a have a positive solubility measurement.

Abstract: Pigmented polymer compositions and processes for preparing melt-processible polymer compositions contain a melt-processible polymer, surface treated organic pigment, typically titanium dioxide, and a polymer processing aid are described. The pigment is surface treated by contact with a silicon-containing compound, such as octyltriethoxysilane followed by contact with an organic compound such as isostearic acid or ethoxylated silicone. The pigmented polymer composition containing a polymer processing aid facilitates production of shaped articles with low melt fracture.

Abstract: A golf ball incorporates nanofiller material in its core, cover, or intermediate layers. Also, a method includes a step of blending into a composition for a golf ball nanocomposite material, nanofiller material or both. The nanocomposite and/or nanofiller materials impart favorable properties to materials used for golf balls, and they provide for greater versatility in usage than materials previously used. Particular compositions incorporating nanocomposite material also are described as suited for use in golf ball compositions.

Abstract: The invention relates to a composition, preferably a care and/or treatment and/or make-up composition for keratin and keratinous materials in general (including the skin, hair, nails, scalp, and/lips of human beings, keratinous fibers, etc.), containing an oil, a structuring polymer and a coated silicone elastomer. Preferably, the compositions of the invention are anhydrous.

Abstract: The invention relates to a method for treating a mineral filler by means of a polydialkylsiloxane and a fatty acid, the hydrophobic fillers thus obtained, and the application thereof in polymers for the manufacture of films and notably “breathable” films.

Abstract: Methods are provided for making a solution masterbatch containing a diene elastomer in an organic solvent and a reinforcing silica filler dispersed therein, comprising the steps of (a) mixing a precipitated silica having an average particle size substantially equivalent to an average particle size of a powdered silica, with a diene elastomer in a first organic solvent; and (b) desolventizing the mixture to form a solution masterbatch preparation. The use of such desolventized solution masterbatches in vulcanizable rubber compounds results in excellent processing characteristics with improved dispersion of fillers, including polymeric nanoparticles. The compounds also demonstrate improved properties, including reduced hysteresis.

Abstract: The invention relates to surface-modified non-halogenated mineral filler compositions comprising a particulate mineral filler core comprising hydroxide groups bound to divalent or trivalent metal ions, said particulate mineral filler core having on its surface (i) one or more short-chain organosilano groups each having one to three silicon-bound short-chain hydrocarbon groups having, independently, one to three carbon atoms, and (ii) one or more long-chain organosilano groups having one to three silicon-bound straight-chained or branched, saturated or unsaturated, long-chain hydrocarbon groups containing, independently, eight to twelve carbon atoms, wherein the long-chain organosilano groups are present in an amount of up to about fifty-five mole percent of combined molar amount of long-chain and short-chain organosilano groups.

Abstract: This invention discloses a method for preparing rubber compositions that exhibit unique combinations of properties that are desirable for tire tread applications for enhanced snow/ice and wet traction, low rolling resistance and increased treadwear performance in comparison with conventional silica compounds. Specifically, a high reactively silane coupling agent, such as a mercaptosilane, is used in combination with a silane coupling typically used for silica tread compounds such as bis(triethoxylsilylpropyl)disulfide to treat silica pellets in a hydrocarbon solvent at elevated temperatures. The treated silica is then blended with solution elastomer cement in a hydrocarbon solvent. The deposited reactive silanes partially react with the elastomer molecules forming a layer of polymer grafted on the silica surfaced. This structure significantly improves the silica retention during the steam stripping operation. Almost 100% (99+%) silica retention has been achieved by this invention.

Abstract: A cured coating for a siliceous material, preferably an optical fiber, comprises a thermally cured polyorganosilsesquioxane having an oxide powder dispersed therein. The oxide powder has a refractive index from about 1.2 to about 2.7 and includes particles having a particle size less than about 100 nanometers. The cured coating has adhesion to the siliceous material and is transparent to ultraviolet radiation.

Abstract: Silicas modified with groups of the general formula (I) RaSiR1bOc— ??(I) where at least one of R or R1 is a >C3 hydrocarbon radical are useful in preparing stable dispersions of basic substances, the silica permitting a decrease in the shear viscosity h for a storage time of 1 week at room temperature (25° C.) to not more than 50% of the initial viscosity value, the viscosity being measured by means of cone/plate geometry with a shearing gap of 105 ?m and a shear rate of 0.5 s?1 at 25° C.

Abstract: The disclosure is directed to a method for reducing the chemical activity and photo activity of titanium dioxide nanoparticles comprising adding an amorphous alumina-stabilizing agent, specifically an anion, such as citric acid, to an aqueous slurry of the titanium dioxide nanoparticles; treating the aqueous slurry with a source of alumina, such as a solution of sodium aluminate, to form alumina-treated titanium dioxide nanoparticles; recovering the alumina-treated inorganic nanoparticles, wherein the nanoparticles have a particle size of about 50 to about 300 nm; and milling the nanoparticles to form nanoparticles having a particle size about 15% smaller than silica-treated inorganic nanoparticles milled under similar conditions. The titanium dioxide nanoparticles described herein are useful in cosmetic, coating and thermoplastic compositions.

Abstract: A color agent for a road marking material comprising composite particles having an average particle diameter of 0.01 to 10.0 ?m, said composite particles comprising: inorganic particles; a gluing agent coating layer formed on surface of said inorganic particle; and an organic pigment coat formed onto said gluing agent coating layer in an amount of from 1 to 500 parts by weight based on 100 parts by weight of said inorganic particles. The color agent for a road marking material, contains no harmful elements and exhibits excellent tinting strength, hiding power, light resistance and heat resistance, and is suppressed in surface activity thereof. The road marking material using the color agent, shows a less change in hue with the passage of time and an excellent retroreflective property.

Abstract: An improved process for making an organosilicon compound surface-treated titanium dioxide material, comprising (a) forming a mixture of the titanium dioxide material in water, (b) wet milling the mixture, (c) adjusting the pH of the slurry resulting from step (b) to between about 5.0 and about 8.5, (d) after step (c), removing the titanium dioxide material from the mixture by vacuum or pressure filtration, (e) after step (d), washing the titanium dioxide material so removed, (f) after step (e), converting the washed titanium dioxide material to a fluid dispersion having a pH of from about 3.5 to less than about 7 via addition of a fluidizing agent comprising a water-soluble monoprotic acid, (g) after, or concurrently with, step (f), adding to the resulting dispersion of titanium dioxide material an organosilicon compound, with mixing, and (h) spray drying the dispersion of the washed titanium dioxide material resulting from step (g) to yield a dry titanium dioxide pigment powder.

Abstract: A sulphur-vulcanizable rubber composition usable for the manufacture of tires, based on at least: (A)—one diene elastomer selected from the group consisting of polybutadienes, natural rubber, synthetic polyisoprenes, butadiene copolymers, isoprene copolymers and mixtures of these elastomers (component A); (B)—a reinforcing white filler (component B); (C)—a coupling agent (white filler/diene elastomer) bearing at least one activated double ethylene bond (component C), with which there is associated: (D)—between 0.05 and 1 phr (parts by weight per hundred of elastomer) of a heat-triggered radical initiator (component D). The coupling agent is in particular an alkoxysilane of the family of alkoxy(C1–C4)-silylpropyls, in particular a trialkoxy(C1–C4)-silylpropyl methacrylate, in particular trimethoxy-silylpropyl methacrylate. Process for preparing such a rubber composition. Tire or semi-finished product, in particular tread, for a tire comprising a rubber composition according to the invention.