Abstract: Heat-expandable microspheres having high heat resistance and high solvent resistance, a production process thereof include a shell of a thermoplastic resin and a thermally vaporizable blowing agent being encapsulated therein. The thermoplastic resin includes a copolymer produced by polymerizing a polymerizable component containing a carboxyl-group-containing monomer. The surface of the heat-expandable microspheres is treated with an organic compound containing a metal of the Groups from 3 to 12 in the Periodic Table.

Abstract: The present invention provides thermoplastic coated proppants and methods for preparing the thermoplastic coated proppants. Methods for using these proppants in subterranean well formations and hydraulic fracturing operations, for example, are also disclosed.

Abstract: A coating process wherein an aqueous liquid is sprayed onto surface postcrosslinked water-absorbing polymer particles in a horizontal mixer and the inner wall of the horizontal mixer which is in contact with the product is made from a stainless steel.

Abstract: Disclosed are an expanded polystyrene particle having a skin layer with superior moldability, a method for preparing the same, and an expanded polystyrene molded article using the same. Provided is an expanded polystyrene particle provided on the surface thereof with a skin layer with superior moldability wherein the skin layer contains a binder selected from the group consisting of a thermoplastic resin-based adhesive, a thermosetting resin-based adhesive, an inorganic adhesive, a protein-based adhesive and a mixture thereof, wherein the skin layer further contains methylene diphenyl diisocyanate.

Abstract: The present invention relates to method for modifying or treating solid particles which includes the steps of: (a) forming a gelled mixture by mixing either simultaneously or sequentially in any order: (1) hollow microspheres each comprising a deformable polymeric shell having entrapped therein an expandable fluid, (2) a polar organic solvent capable of swelling but not dissolving the polymeric shells of the hollow microspheres, and (3) solid particles, wherein micro-channels are formed in the swelled polymer shells to allow entry of the solid particles into the hollow microspheres and exit of the expandable fluid therefrom, thereby forming microspheres that each comprises a collapsed polymeric shell in a gelled state and has one or more of said solid particles entrapped therein; (b) removing the expandable fluid and the polar organic solvent from the gelled mixture; and (c) coating the microspheres thus-produced with a film-forming material to form a liquid-impermeable membrane thereon.

Abstract: Process for improving the insulating capacity of expanded vinyl aromatic which includes: 1) preparing beads of expandable vinyl aromatic polymers containing 1-10% by weight, calculated with respect to the polymer, of an expanding agent englobed in the polymeric matrix, and 0.01-25% by weight, calculated with respect to the polymer, of an athermanous additive comprising carbon black homogeneously distributed in the polymeric matrix; 2) treating the surface of the beads, before deposition of the coating, with a liquid lubricating agent; and 3) thermally treating the beads with hot air at a temperature ranging from 30 to 60° C.

Abstract: The invention relates to coated foam particles, processes for producing foam moldings and the use thereof.

Abstract: The present invention relates to polymer-silicon composite particles using silicon having high energy density, a method of making the same, an anode and a lithium secondary battery including the same. The silicon having high energy density is used as an anode active material to provide a lithium secondary battery having large capacity. Silicon-polymer composite particles having a metal plated on the surface thereof are provided to solve the problem that silicon has low electrical conductivity and a method of preparing the same is provided to produce an electrode having improved electrical conductivity. Furthermore, silicon-polymer composite particles having a metal coated on the surface thereof through electroless plating are prepared and an electrode is formed using the silicon-polymer composite particles.

Abstract: A method for producing styrene-modified linear low-density polyethylene-based resin particles, which includes the steps of: dispersing 100 parts by weight of non-crosslinked linear low-density polyethylene-based resin particles which are polymerized using a metallocene compound as a catalyst and contain an inorganic nucleating agent, 50 to 800 parts by weight of a styrene-based monomer and 0.1 to 0.9 parts by weight of a polymerization initiator relative to 100 parts by weight of the styrene-based monomer into an aqueous suspension containing a dispersant; impregnating the polyethylene-based resin particles with the styrene-based monomer under heating the resulting dispersion at such a temperature that the styrene-based monomer does not substantially polymerize; and performing polymerization of the styrene-based monomer at a temperature of (T+10) to (T+35)° C. where T° C. is a crystallization peak temperature of the polyethylene-based resin particles.

Abstract: A roof covering includes a roofing mat formed from fibers of a fiber material. The fibers are coated with a sizing. The roof covering also includes a coating material that coats the mat. The coating material is based on an organic material. The sizing includes a sulfur-containing material that bonds to the fiber material. The sulfur-containing material has sulfur groups that form cross-links with the organic material. In another embodiment, the coating material contains sulfur added to the organic material. The sizing includes a bonding material that bonds to the fiber material and that bonds to the sulfur. The sulfur forms cross-links with the organic material.

Abstract: A hydrophilic ceramic coating is formed on an endoprosthesis preform. The hydrophilic ceramic coating is porous and can store nano-sized drug particles.

Abstract: Binder for granular and/or fibrous substrates

Abstract: Nano-constructscomprising nanoshells and methods of using the nano-constructs for treating or ameliorating a medical condition are provided.

Abstract: It is provided smooth polyurethane particles for oil absorption under producing, treating, keeping and transporting. A polyurethane particle consists of a body of the polyurethane particle and hydrophilic fine silica powders existing on the body. The body is obtained by three-dimensionally polymerizing an isocyanate-terminated urethane prepolymer with trifunctional or more functional amines. The isocyanate-terminated urethane prepolymer is obtained by reacting polyisocyanates and polyols including a poly(tetramethylene ether)glycol. The polyurethane particles are obtained by spray-drying a mixed aqueous dispersion in which the hydrophilic fine silica powders and the polyurethane spheres are dispersed in water.

Abstract: A process for forming polymer particles containing metallic flakes, comprising: a) forming a suspension of metallic flakes in a solution of a polymeric binder in a solvent; b) forming droplets of the suspension, c) freezing the droplets to freeze solvent in the droplets to form frozen solvent domains within the polymeric binder, and d) removing the frozen solvent from the polymeric binder thereby forming porous polymer particles containing the metallic flakes encapsulated therein.

Abstract: A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting porous, surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter 0.5 to 1.8 ?m with at least one polyisocyanate and at least one diol or at least one epoxide.

Abstract: Mechanical plating provides a new technique of manufacturing of certain materials containing multiple elements, including amalgams, and novel pellets containing multiple materials. Some embodiments provide new and versatile materials for dosing mercury, metals or other inorganic compounds into lamps. Some embodiments include materials comprising layers of metals or compounds built up on a substrate. One embodiment is a layer of zinc amalgam applied to a glass sphere. Also disclosed is an improved method of manufacture for such particles that will speed production, increase yields, lower costs and reduce exposure to mercury in the workplace.

Abstract: The present invention is directed to an improved thermoplastic material-coated particulate composition useful for hydraulic fracturing treatments, gravel packing for sand control or other well formation treatments and especially the related methods of its use and is particularly directed to using a thermoplastic material as part of a particulate composition in a method for enhancing the stabilization of and reducing particulate flowback and fines transport in a well formation.

Abstract: The invention relates to a process for covering rubber particles with a continuous functional layer of polymeric nature, characterized by the use of a rotating drum with variable speed drive allowing for a progressive reduction of the speed and a pre-blend of a setting and filmifiable reactive fluid comprising a liquid resin selected from alkyd resins, polyvinyl chloride resin, urethane alkyd resins, polyurethane-urea resins and reactive polyester resins. The invention also relates to covered granulates obtained by this process.

Abstract: Modifying agents, e.g., a poly(sulfonyl) azide, are attached to a substrate surface, e.g., the surface of a polyolefin particle, by a process comprising the steps of: A. Contacting in an open contact zone and under a flow of inert gas a substrate with a modifying agent, binding agent, e.g., a phenolic-based antioxidant, and a liquid mixing agent, e.g., methylene chloride, to form a substrate mixture; B. Closing the contact zone and stopping the flow of inert gas to the contact zone; C. Agitating the substrate mixture under the inert gas in the closed contact zone to commence evaporation of the liquid mixing agent; D. Reducing the temperature and pressure of the closed contact zone while continuing to agitate the substrate mixture; and E. Completing the substantial evaporation of the mixing agent from the substrate mixture by opening the contact zone and initiating an inert gas flow while continuing agitation of the substrate mixture and maintaining a reduced pressure.

Abstract: The resistance of hollow microspheres towards shear and pressure may be enhanced by forming a non-tacky, solid, non-particulate outer coating comprised of a non-thermoset film-forming material on the outer surfaces of such microspheres.

Abstract: A particle is formed from a dispersion and includes a compound and a metal disposed on the particle. The compound has the chemical formula R—Si—H. In this formula, R is an organic or inorganic moiety. The particle is also included in a corresponding dispersion. The particle is formed from a method that includes the step of forming the dispersion. The method also includes the step of disposing the metal on the particle.

Abstract: A catalyst masterbatch is disclosed, which when used with a rigid TPU polymer, will cause the rigid TPU to depolymerize during melt processing and repolymerize as the melt is being cooled. This feature is of particular interest in a pultrusion process to create TPU/fiber composites. The catalyst masterbatch contains a relative soft TPU polymer where the catalyst has been swelled or absorbed into the soft TPU polymer. A carrier, such as a plasticizer, can be used to aid the transport of the catalyst into the soft TPU polymer. The catalyst masterbatch is used as an additive to the rigid TPU in a pultrusion process to make the composites. The catalyst masterbatch can also be used in non-fiber reinforced rigid TPU compositions to increase the Mw of melt processed rigid TPU.

Abstract: Process for improving the insulating capacity of expanded vinyl aromatic which includes: 1) preparing beads of expandable vinyl aromatic polymers containing 1-10% by weight, calculated with respect to the polymer, of an expanding agent englobed in the polymeric matrix, and 0.01-25% by weight, calculated with respect to the polymer, of an athermanous additive comprising carbon black homogeneously distributed in the polymeric matrix; 2) treating the surface of the beads, before deposition of the coating, with a liquid lubricating agent; and 3) thermally treating the beads with hot air at a temperature ranging from 30 to 60° C.

Abstract: Hollow particles for use in various types of assay devices are provided. Due to their hollow or voided structure, the particles may exhibit a variety of beneficial properties. For instance, hollow particles are generally lightweight, and thus, relatively inexpensive in comparison to other types of particles. Hollow particles may also form a stable system without requiring refrigeration or rotation. In addition, hollow particles may possess enhanced light diffraction capabilities, which may be particularly beneficial in certain types of assay devices, e.g., diffraction-based assay devices.

Abstract: The present invention relates to a surface chemically modified organic high polymer nanometer powder and its preparation method. The phosphoric acid modified nanometer powdery material of the present invention is polyether polyurethane or polyester polyurethane nanometer powder. The surface of the powder has self-assembled phosphate groups. It is prepared by the following method: phosphate groups are introduced into polyether polyurethane or polyester polyurethane nanometer powder in a phosphoric acid buffer solution by means of physical adsorption. This method can improve the stability and dispersibility of the powder and change its physical, chemical and biological properties and hopefully will realize intensive and extensive application in biomedical field. The surface modified nanometer powder of the present invention is in a controllable size of 50 nm˜500 nm and its surface Zeta potential in physiological environment is negative.

Abstract: The present invention relates to core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). The core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the resin (a) has an initial softening temperature of 40 to 270° C., a Tg of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the Tg and the flow temperature in a range of 0 to 120° C. The resin particles are excellent in electrostatic property, thermal storage stability and thermal properties, and exhibit a narrow particle diameter distribution.

Abstract: Disclosed herein are anisotropic conductive particles contained in anisotropic conductive adhesive films, which can be used in circuit board mounting applications. The conductive particles can exhibit superior electrical reliability. Further disclosed are polymer particles having good compressive deformability and recoverability from deformation without being ruptured when an adhesive film containing conductive particles including the polymer particles as a component is interposed and compressed between connection substrates, thereby achieving a sufficient contact area between the particles and the connection substrates. Because the polymer particles have a spherical shape, a uniform particle diameter, and a narrow particle diameter distribution, the particles can exhibit enhanced conducting properties.

Abstract: The present invention provides a core-shell nanostructure comprising: a hydrophobic polymeric core; and a hydrophobic polymeric shell on the core, wherein the shell comprises at least one binding site for binding at least one target agent. In particular, the nanostructure has a red-blood cell morphology. The present invention also provides a method for preparing the nanostructure and uses of the nanostructure.

Abstract: The invention describes a process for preparing pulverulent polyimide-polyimide block copolymers. The result polyimide-polyimide block copolymers and compounds produced using them can be compressed into moldings by the direct forming method or by the hot compression molding method. Polymeric moldings can be produced therefrom by customary mechanical and thermal machining and forming methods.

Abstract: A process of repairing a plasma etched low-k dielectric material having surface-bound silanol groups includes exposing at least one surface of the dielectric material to (a) a catalyst so as to form hydrogen bonds between the catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds, or (b) a solution comprising a supercritical solvent, a catalyst, and a silane capping agent so as to form hydrogen bonds between a catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds. Horizontal networks can be formed between adjacent surface-bound silane compounds.

Abstract: The present invention provides an Ag or Ni conductive powder, which can show the high conductivity even in condition that a resin is included and can has the narrow particle size distribution, and a conductive composition using the same, and a producing method of the same. In such an Ag or Ni conductive powder, a conductive composition and a producing method of the conductive powder, the conductive powder having a convex radially extended and a concave, wherein a core material which is at least one particle selected from the group consisting of an organic type particle, a metal type particle and a ceramic type particle is included into the conductive powder.

Abstract: Amorphous metal oxide thin film is produced by removing through oxygen plasma treatment the organic component from an organics/metal oxide composite thin film having thoroughly dispersed therein such organic component at molecular scale. This ensures production of amorphous metal oxide thin film with low density and excellent thickness precision.

Abstract: The method of the present invention can 1) produce spherical and scaly ultrafine particles without pulverization, 2) obtain spherical ultrafine particles having a sharp spherical particle diameter distribution without requiring a sieving step, 3) produce spherical ultrafine particles extremely approximating a true circle and possessing a particle diameter of 100 nm˜50,000 nm allowing selection of a size suitable for the particular purpose of use and 4) produce spherical ultrafine particles on a commercial scale at low cost. There is also provided spherical ultrafine particles produced by the above production process. The spherical ultrafine particles of the present invention are characterized by a form having circularity of 0.9 to 1.0 and a particle diameter of 0.01 ?m to 10 ?m without pulverization. The spherical ultrafine particles can be produced by the method of the present invention using as a nozzle a base having special through holes and hole density.

Abstract: Methods for preparing porous inorganic coatings on porous supports using certain pore formers, and porous supports coated with porous inorganic coatings. The porous inorganic coatings may serve as membranes useful in, for example, liquid-liquid, liquid-particulate, gas-gas, or gas-particulate separation applications.

Abstract: Methods for preparing porous inorganic coatings on porous supports using certain pore fillers, and porous supports coated with porous inorganic coatings. The porous inorganic coatings may serve as membranes useful in, for example, liquid-liquid, liquid-particulate, gas-gas, or gas-particulate separation applications.

Abstract: The molding thermoplastic polymer, which can solve a problem with fine particles in a suspension polymerization process, a problem for a reduction in energy consumption at the time of drying in an emulsion polymerization process, and a problem in compounding procedures for processors. The invention relates to molding thermoplastic polymer particles comprising 100 parts by weight of suspension polymer particles having a glass transition temperature of 60° C. or more and an average particle diameter of 50 to 500 ?m produced by suspension polymerization, the said suspension polymer particles being coated with 5 (inclusive) to 22 (exclusive) parts by weight of an emulsion polymer produced by emulsion polymerization.

Abstract: Amphiphilic, magnetic composite particles are comprised of cores and shells. The core contains both hydrophobic vinylic graft copolymer, hydrophobic vinylic homopolymer and magnetic nanoparticles, and the shell to which the hydrophobic vinylic polymer is grafted is a hydrophilic, nitrogen-containing polymer. Typically, the composite particles are made by a process which involves generating radicals on nitrogen atoms of the water-soluble polymer, and then initiating free-radical copolymerization of said vinylic monomer(s) and vinylic-coated magnetic nanoparticles, whereby vinylic polymer(s) undergo(es) phase separation and the vinylic coated magnetic nanoparticles are encapsulated within the vinylic polymer to form a composite latex.

Abstract: Organic zinc salts and mixtures thereof, organic zinc salt coated particles, methods of preparing organic zinc salts and organic zinc salt coated particles, and various applications of such coated particles, including applications in rubber, other polymeric materials, and pesticides and/or fungicides are disclosed.

Abstract: Modified scrap rubber particles, a method for forming the modified rubber particles and compositions including the modified rubber particles. The rubber particles are impregnated with at least one polymerizable monomer and polymerized to impregnate the rubber particles with a polymer. The impregnated polymer provides the modified rubber particles with improved properties which increase the potential uses for recycled scrap rubber. The modified rubber particles are useful in surface coatings, such as latex paint or powder coatings and can be used as a soil substitute.

Abstract: A process for producing a polysaccharide superabsorbent particulate including the process steps of bringing into contact a polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel drying the polysaccharide gel, comminuting the dried polysaccharide gel to form polysaccharide superabsorbent polymer particles, coating the particles with a polyphosphate or polyphosphoric acid, crosslinking the coated particles, and surface treating the particulate with a metal multivalent salt or an acid. The invention further relates to a polysaccharide superabsorbent polymer particulate obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the polysaccharide superabsorbent particulates or of the composites as well as the use of polyphosphates.

Abstract: A particle composite for incorporation in a finish coating includes particles having various sizes from 0.01-10 ?m and encased by at least one layer containing a coating mass. The particles are chemically fixable and have substantially the same function on the surface as that in the host matrix of the finish layer. Methods for producing the particle composite are disclosed, wherein hyperstructures leading to an enhancement of the oil- and dirt-repellent effect are formed by the combination of smaller and larger particles.

Abstract: This invention is directed to a process for making solid, typically particulate, water-swellable material comprising coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400%, or even more preferably at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material. The invention also relates to solid (particulate) water-swellable material obtainable by the process of the invention.

Abstract: The present invention provides a simple and economical process for preparation of metal-coated non-metallic nano/micro particles. The nano/micro particles are composed of a core and metallic coat over the core using silver or other transition/noble metals. The core of the non-metallic nano/micro particles are selected from inorganic material such as silica, calcium carbonate, barium sulfate, or emulsion grade polyvinyl chloride and other polymers prepared by emulsion process including porous polymers. The metal coating is selected from the transition/noble metals such as copper, nickel, silver, palladium, platinum, osmium, ruthenium, rhodium, and such other metals and their combinations that are easily reducible to elemental metal.

Abstract: An coated particulate is provided with a graphite-impregnated resin coating. The oil field particulates may comprise any of gravel-pack sand, granular betonite, ground Gilsonite, calcium carbonate, glass beads, rock wool, shredded paper, metal spheres, ceramic beads, nut hulls, ground rubber, plastic beads, muscovite mica, calcined petroleum coke, and perlite. The resin may comprise as a binder one or more of a natural, synthetic, water-soluble, and organic resins. More specifically, the resins may comprise an organic film-forming resin such as an alkyd, polyurethane and epoxy. Alternatively, the resin may comprise a film-forming water-soluble polymer, such as a starch, carboxymethyl cellulose, hydroxyethyl cellulose, and xanthan gum. In a further alternative, the resin may comprise a resin-dispersed emulsion, such as a latex or acrylic.

Abstract: A process for preparing a metal styrene polymer composite having nano metallic particles deposited thereon is disclosed, which includes a) undergoing free radical polymerization of styrene and an optional co-monomer in the presence of a persulfate initiator and a chain transfer agent; and b) contacting the resulting styrene oligomer or copolymer of styrene and the co-monomer from step a) with an aqueous solution containing a noble metal ion dissolved therein, so that the noble metal ion is reduced to element form particles and deposit on the styrene oligomer or copolymer of styrene and the co-monomer by sulfates on the oligomer or copolymer in the absence of a reducing agent.

Abstract: A process for the preparation of coated polymer particles containing superparamagnetic crystals, said process comprising reacting surface-functionalized, superparamagnetic crystal-containing polymer particles of diameter less than 0.5 ?m with at least one polyisocyanate and at least one diol.

Abstract: Active carboxylic acid ester groups are coupled on the surfaces of microspheres so as to reduce protocols for microsphere processing, control side reactions, and stably preserve beads containing active carboxylic acid ester groups. Further, microspheres labeled with at least one fluorescent dye cage in the microspheres, and the microspheres are preserved in lower alcohol.

Abstract: The invention relates to a a polymer composition, comprising: (i) at least one thermoplastic resin having a glass transition temperature of at least about 220°C.; (ii) at least one phenylalkoxysilane, biphenol, trisilanolphenyl polyhedral oligomeric silesquioxane, or mixture of two or more thereof; (iii) inorganic particulates having an average particle size in the range up to about 100 nanometers dispersed in the thermoplastic resin, the inorganic particulates having an index of refraction in the range from about 1.

Abstract: An article has a surface, at least a portion of which has a local radius of curvature of about 1000 nm or less. For example, the article may be a nanoparticle or a surface, a portion of which has a roughness characterized by a radius of curvature of about 1000 nm or less. A monolayer coating disposed on the surface includes a plurality of ligands organized into ordered domains having a characteristic size of less than or about equal to 10 nm.