Abstract: A method for producing a synthetic rubber, the method including: an emulsification step of continuously feeding a solution or a dispersion of a synthetic rubber obtained by dissolving or dispersing the synthetic rubber in an organic solvent and an aqueous solution of an emulsifier to a mixer and mixing to continuously obtain an emulsion; a first removal step of removing the organic solvent from the emulsion continuously obtained in the emulsification step in a container while the emulsion is continuously transferred to the container regulated to a pressure condition of 700 to 760 mmHg; and a second removal step of removing the organic solvent from the emulsion that has undergone the first removal step under a pressure of less than 700 mmHg.

Abstract: A method for producing a polymer latex includes: a preparation step of reducing the weight average molecular weight of a conjugated diene polymer (A) by 20 to 70 mass %, thereby obtaining an organic solvent solution containing a conjugated diene polymer (B) having a weight average molecular weight lower than that of the conjugated diene polymer (A); and an emulsification step of emulsifying the organic solvent solution in water in the presence of a surfactant, thereby obtaining a polymer latex.

Abstract: A capacitive sensing climbing hold includes at least one polymer matrix and an anchor point provided in the polymer matrix, the anchor point being configured for attaching the climbing hold to a climbing wall and for transmitting a capacitive contact to a capacitive sensing unit. The polymer matrix includes a carbon powder so that the carbon powder represents between 5% and 35% of the weight of the polymer matrix, preferably between 10% and 35% of the weight of the polymer matrix, the carbon powder being substantially evenly distributed in the polymer matrix.

Abstract: Silicone particles having excellent dispersibility are provided. A cosmetic material having excellent feeling of use, and a highly functional paint and an electronic material are also provided. The silicone particles include a siloxane as a component. A content of a hydrogen atom bonded to a silicon atom per unit mass is 300 ppm or less. In addition, the silicon atom in the siloxane as a component for the silicone particles is crosslinked with another silicon atom via an alkylene group having a carbon number of 4 to 20.

Abstract: The invention provides a polymer comprising at least one vinyl ester; and at least one acrylic ester of a branched alcohol, wherein the branched alcohol is a branched C16-C32 alcohol. The invention also provides compositions comprising these polymers.

Abstract: The present invention relates to a method for producing a vinyl chloride-based resin composition which exhibits good processability due to excellent solubility in a solvent, can implement excellent transparency in products produced, and improves the glossiness of a coating film when used as an ink binder, thereby being capable of being used as a high-quality adhesive and ink binder, and a method for producing the same.

Abstract: The invention provides: a metallic coating composition and a method for forming the coating film. The metallic coating composition includes: a binder component containing a phosphate group-containing acrylic resin (A), a polyisocyanate compound (B), and a cellulose resin (C); and a vapor-deposition aluminum pigment (D), wherein the vapor-deposition aluminum pigment (D) is present in an amount of 10 to 95 parts by mass per 100 parts by mass of the total solids content of the binder component, and wherein the phosphate group-containing acrylic resin (A) is a copolymer resin of a monomer mixture consisting of 3 to 48 mass % of a phosphate group-containing polymerizable unsaturated monomer (a1), 6 to 45 mass % of a hydroxy-containing polymerizable unsaturated monomer (a2), and 10 to 91 mass % of other polymerizable unsaturated monomer (a3), based on the total amount of all of the monomers.

Abstract: Provided is a method of producing a wet master batch, including the step of: solid-liquid separating and dehydrating a coagulum slurry obtained by mixing a rubber latex with a carbon black slurry containing a carbon black dispersed in water and coagulating the mixture, the solid-liquid separating and dehydrating step including gravity filtering and vacuum filtering the coagulum slurry on a filtration filter and then pressurizing, by means of a pressurizer, the coagulum slurry on the outer peripheral surface of a drum, to thereby pressure dehydrate the coagulum slurry. Also provided is a solid-liquid separating and dehydrating apparatus for wet master batch production, which includes: a filtration filter; a filtration portion; a drum; and a pressurizer.

Abstract: The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.

Abstract: Particulate binder compositions made with amine-aldehyde resins and methods for making same are provided. The method for making the particulate binder composition can include spray-drying an amine-aldehyde resin having a total aldehyde compound to total amine compound molar ratio of about 1.55:1 to about 1.65:1 to produce a particulate binder composition. The particulate binder composition can have a fusion diameter of about 35 mm to about 70 mm.

Abstract: An integrated process for the solution polymerization and subsequent halogenation of butyl rubber in a common medium is disclosed. The process comprises providing a solution polymerization reactor containing a C6 medium mixed with a monomer mixture comprising at least an isoolefin monomer and a multiolefin monomer in a mass ratio of monomer mixture to medium of from 61:39 to 80:20. Once polymerized, residual unreacted monomer mixture is separated from the rubber solution using a distillation process. The residual monomers may then be purified and recycled back into the reactor. The separated rubber solution is then halogenated. The process obviates the need for separating the rubber from the medium following polymerization, then re-dissolving it in another solvent for halogenation, thereby saving energy cost. The process optionally employs heat exchangers for the reactor feed streams to further reduce energy consumption.

Abstract: A semiconductor package resin composition of the present invention includes an epoxy resin, a curing agent, inorganic particles, nano-particles surface treated with a silane that contains a photopolymerizable functional group, and a photopolymerization initiator.

Abstract: Crosslinked polyimide-poly(alkylene oxide) copolymers capable of holding large volumes of liquid while maintaining good dimensional stability. Copolymers are derived at ambient temperatures from amine endcapped amic-acid oligomers subsequently imidized in solution at increased temperatures, followed by reaction with trifunctional compounds in the presence of various additives. Films of these copolymers hold over four times their weight at room temperature of liquids such as ionic liquids (RTIL) and/or carbonate solvents. These rod-coil polyimide copolymers are used to prepare polymeric electrolytes by adding to the copolymers various amounts of compounds such as ionic liquids (RTIL), lithium trifluoromethane-sulfonimide (LiTFSi) or other lithium salts, and alumina.

Abstract: A method for producing a slurry for a heat-resistant layer for a lithium ion secondary battery, including: a step of producing a polymer aqueous dispersion by polymerizing a monomer in an aqueous medium to give a polymer aqueous dispersion containing a polymer with a polymerization conversion rate of 90 to 100%, a step of obtaining a mixed solution by mixing N-methylpyrrolidone and the polymer aqueous dispersion, a step of obtaining a binder composition by removing an unreacted monomer and the aqueous medium from the mixed solution, and a step of obtaining a slurry by dispersing non-conductive microparticles in the binder composition, wherein the step of obtaining the binder composition includes removing the aqueous medium and the unreacted monomer by using a distillation column under a reduced pressure so that the binder composition contains the unreacted monomer and a water content in predetermined amounts.

Abstract: A method for producing a slurry for a heat-resistant layer for a lithium ion secondary battery, including: a step of producing a polymer aqueous dispersion by polymerizing a monomer in an aqueous medium to give a polymer aqueous dispersion containing a polymer with a polymerization conversion rate of 90 to 100%, a step of obtaining a mixed solution by mixing N-methylpyrrolidone and the polymer aqueous dispersion, a step of obtaining a binder composition by removing an unreacted monomer and the aqueous medium from the mixed solution in a substitution tank, and a step of obtaining a slurry by dispersing non-conductive microparticles in the binder composition, wherein the step of obtaining the binder composition includes removing the aqueous medium and the unreacted monomer, while feeding the mixed solution to an external heating device and feeding a heat quantity to: the mixed solution that has been fed to the external heating device.

Abstract: The present invention provides a method of producing, in an industrially advantageous manner, an ethylene/vinyl alcohol copolymer aqueous dispersion which has a high concentration and is excellent in long-term storage stability and in which the resin particles in the aqueous dispersion obtained are small in particle diameter.

Abstract: Accordingly, the invention provides a process for the preparation of an artificial latex, comprising the steps: (a) emulsification of a cement comprising a rubber dissolved in a suitable organic solvent, together with an aqueous surfactant solution, thus forming an oil-in-water emulsion; (b) step-wise reduction of the solvent content of the oil-in-water emulsion in two or more stages resulting in an artificial latex. In addition, the invention provides a continuous stirred vessel for removing an organic solvent from an oil-in-water emulsion comprising rubber dissolved in an organic solvent.

Abstract: A method of making a filled resin includes the steps of: Providing a wiped film evaporator with an internal evaporator chamber maintained under vacuum and having an internal chamber wall maintained at an elevated temperature; introducing solvent-borne particles and organic matrix into the internal chamber; and compounding the solvent-borne particles and the organic matrix in the internal evaporator chamber by forming a thin film against the internal chamber wall, the thin film including organic matrix and particles, and the vacuum conditions and elevated temperature being sufficient to remove solvent from the particles and organic matrix to provide the filled resin. Less than about 10% of the particles in the resulting filled resin are agglomerated.

Abstract: A method of making a filled resin includes providing functionalized particles; and combining and homogenously mixing the functionalized particles with an organic matrix in a vacuum kneader to provide the filled resin so that the functionalized particles comprise at least about 20% by weight of the filled resin. The step of providing functionalized particles can also include providing a feedstock of (i) untreated particles, (ii) a surface treatment agent reactive with the particles, and (iii) solvent, and directing the feedstock through a continuous reactor maintained at a temperature sufficient to react the particles with the surface treatment agent to provide the functionalized particles in less than about 4 hours; and directing the functionalized particles from the continuous reactor directly into the vacuum kneader. In another aspect, the a finished resin comprises at least about 20% by weight of functionalized particles in an organic matrix.

Abstract: A process is provided for producing discrete solid beads of polymeric material e.g. phenolic resin having a mesoporous structure, which process may produce resin beads on an industrial scale without aggregates of resin building up speedily and interrupting production. The process comprises the steps of: (a) combining a stream of a polymerizable liquid precursor e.g. a novolac and hexamine as cross-linking agent dissolved in a first polar organic liquid e.g. ethylene glycol with a stream of a liquid suspension medium which is a second non-polar organic liquid with which the liquid precursor is substantially or completely immiscible e.g. transformer oil containing a drying oil; (b) mixing the combined stream to disperse the polymerizable liquid precursor as droplets in the suspension medium e.g.

Abstract: Methods relating to polymer-bioceramic composite implantable medical devices are disclosed.

Abstract: A method for manufacturing natural rubber according to an embodiment of the present technology includes: adding to a natural rubber latex at least one type of a predetermined sulfonic acid selected from the group consisting of a monoalkyl sulfonic acid, a polyoxyethylene alkyl ether sulfonic acid, and an alkylbenzene sulfonic acid; and, thereafter, removing moisture from the mixture of the natural rubber latex and the sulfonic acid.

Abstract: Process for preparing ultrafine powders based on polyamides by contacting polyamides having a relative solution viscosity ?rel in the range from 1.5 to 2.0, measured in 0.5% m-cresol solution at 25° C., with an alcoholic medium in the presence of inorganic particles under the action of pressure and/or temperature to generate an at least partial solution, and then precipitating the polyamide from the at least partial solution, characterized in that a suspension of the inorganic particles suspended in the alcoholic medium is used. The resulting ultrafine polyamide powders have a specific BET surface area in the range of 5-100 m2/g; a fineness d50 of less than 70 ?m; an apparent density AD in the range from 250 to 1000 g/l; and a particle content of 0.1 to 80% by weight of inorganic particles based on the total weight of the polyamide powder. They are equally suitable for coatings and for moldings and components with improved mechanical properties.

Abstract: The present invention relates to (1) a process for producing a water dispersion for ink-jet printing containing colorant-containing polymer particles which includes a step I of obtaining a dispersion of colorant-containing polymer particles; a step II of obtaining a water dispersion of the colorant-containing polymer particles from the dispersion obtained in the step I; a step III of mixing the water dispersion obtained in the step II with an organic solvent (B) to suitably control a relative dielectric constant of a mixed solvent in the resultant dispersion, thereby precipitating the colorant-containing polymer particles; and a step IV of separating precipitates obtained in the step III from the dispersion and re-dispersing the precipitates in a water-based solvent; (2) a water-based ink for ink-jet printing which is excellent in ejection stability and optical density; (3) a process for purifying a water dispersion for ink-jet printing; and (4) a process for producing a dispersion containing groups of fine p

Abstract: A process of producing an artificial latex, comprising the steps: (a) cement formation, wherein a rubber is dissolved in a suitable hydrocarbon solvent; (b) emulsification of the cement formed in step (a), together with an aqueous soap solution, thus forming an oil-in-water emulsion; (c) hydrocarbon solvent removal, resulting in a latex of the rubber having particles of a median particle size in the range of from about 0.5 to 2.0 ?m, and optionally (d) latex concentration, forming an artificial latex with a higher solids content, characterized in that in step (b) a premix is formed first, which is subsequently homogenized into an oil-in-water emulsion, and wherein the premix is formed by mixing the cement with the aqueous soap solution at a volume ratio of 1:1.

Abstract: A method of making a filled resin includes the steps of: Providing a wiped film evaporator with an internal evaporator chamber maintained under vacuum and having an internal chamber wall maintained at an elevated temperature; introducing solvent-borne particles and organic matrix into the internal chamber; and compounding the solvent-borne particles and the organic matrix in the internal evaporator chamber by forming a thin film against the internal chamber wall, the thin film including organic matrix and particles, and the vacuum conditions and elevated temperature being sufficient to remove solvent from the particles and organic matrix to provide the filled resin. Less than about 10% of the particles in the resulting filled resin are agglomerated.

Abstract: Provided are a process for efficiently producing a rubber wet master batch in which a dispersibility of carbon black in the rubber is improved, in which a reinforcing property and an abrasion resistance of the rubber can be enhanced by using carbon black having a high surface activity, in which a yield of the carbon black in the wet master batch obtained is not reduced and in which a handling property of the carbon black is good as compared with master batches prepared by using a granulated and dried substance of carbon black prepared by a conventional wet method and non-granulated carbon black, a carbon black-containing rubber wet master batch obtained by the above process and a rubber composition and a tire prepared by using the master batch.

Abstract: A resist polymer solution comprising a resist polymer containing a repeating unit decomposed by the action of an acid so as to be soluble in alkali and a repeating unit having a polar group, the resist polymer dissolved in a solvent for coating film formation, wherein the amount of impurities whose boiling point is not higher than that of the solvent for coating film formation is 1 mass % or less based on the resist polymer. Further, there is provided a process for producing a resist polymer solution, comprising the step (1) of redissolving a solid matter containing a resist polymer in a solvent for coating film formation (a) and/or a solvent (b) whose boiling point at atmospheric pressure is not higher than that of the solvent (a); and the impurity removing step (2) of distilling off the solvent (b) and/or any excess amount of solvent (a) in vacuum from the redissolution solution obtained in the step (1).

Abstract: A process for producing a solid dispersion comprising a resin and a functional compound dispersed therein, which comprises: kneading a powdery functional compound together with deionized water while gradually introducing the deionized water; adding a resin and, according to need, an additive to the mixture; subsequently heating and kneading the resultant mixture in a vessel which has an atmosphere causing the resin to soften at a temperature not higher than the boiling point of the deionized water and which has been tightly closed according to need so as to function like a pressure cooker to thereby disperse the functional compound into the softened resin; and kneading the resultant dispersion with heating at ordinary pressure or a reduced pressure to remove the water by vaporization.

Abstract: The present invention relates to the use, in a compounding process for the preparation of pigmented impact-modified thermoplastic polymer compositions, of a mixture comprising A) from 60 to 98 parts by weight, based on the sum of components A and B, of at least one graft polymer, used in powder form, consisting of a rubber-elastic core and a grafted polymer component as the shell, B) from 2 to 40 parts by weight, based on the sum of components A and B, of at least one inorganic or organic liquid compound, and C) at least one pigment, characterised in that the graft polymer A and/or the pigment C absorbs or adsorbs the liquid inorganic or organic compound B, and the boiling point of component B at normal pressure is below the temperature of the polymer melt during the compounding.

Abstract: Accordingly, the invention provides a process for the preparation of an artificial latex, comprising the steps: (a) emulsification of a cement comprising a rubber dissolved in a suitable organic solvent, together with an aqueous surfactant solution, thus forming an oil-in-water emulsion; (b) step-wise reduction of the solvent content of the oil-in-water emulsion in two or more stages resulting in an artificial latex. In addition, the invention provides a continuous stirred vessel for removing an organic solvent from an oil-in-water emulsion comprising rubber dissolved in an organic solvent.

Abstract: A polyester resin emulsion includes crosslinked polyester resin in an emulsion medium, the crosslinked polyester resin having a degree of crosslinking of from about 0.1 percent to about 100 percent. The emulsion can be formed by solvent flashing a mixture of a polyester resin, an initiator, a solvent, and an emulsion medium, wherein the crosslinked polyester resin has a degree of crosslinking of from about 0.1 percent to about 100 percent.

Abstract: A process for the preparation of a readily water-redispersible polymer powder by spray drying of an aqueous polymer dispersion in the presence of a novel spray drying assistant.

Abstract: A method for combining materials (such as impregnating materials with functional materials) uses a combination of supercritical fluid technology and polymer melt processing technology. The functional material is soluble in a near supercritical or supercritical fluid, which dissolves in the matrix/bulk material during melt processing. Controlling the processing conditions facilitates a change of state for the fluid, which results in the precipitation of the functional material in the bulk material. The impregnated bulk material may be shaped using conventional polymer based processing techniques such as extrusion and injection moulding.

Abstract: The present invention relates to a method for the production of pulverulent high-molecular water-soluble polymers for application in solid/liquid separation processes. The invention relates in particular to a method for modifying and drying inverse polymer dispersions with the help of kneading technology while recovering the solvents used.

Abstract: A method to prepare porous medium decorated with nanoparticles involves contacting a suspension of nanoparticles in an ionic liquid with a porous medium such that the particles diffuse into the pores of the medium followed by heating the resulting composition to a temperature equal to or greater than the thermal decomposition temperature of the ionic liquid resulting in the removal of the liquid portion of the suspension. The nanoparticles can be a metal, an alloy, or a metal compound. The resulting compositions can be used as catalysts, sensors, or separators.

Abstract: Process for the manufacture of a composite material (M) comprising a stage (E) according to which a dispersion (D) comprising : (a) at least one polymer, (b) at least one lamellar compound, and (c) at least one dispersing liquid, is dried by atomization. Composite material (M?) comprising (a?) at least one polymer, (b?) at least one lamellar compound, and (d?) at least 0.02% by weight of at least one surface-active agent with respect to the weight of (a?) in the dry state; composed of particles having a weight-average diameter D50 of less than or equal to 200 ?m. Method for processing this composite material.

Abstract: Dry jointing sand which is swept into joints is consolidated by addition of a powder composition employing either a polyvinyl alcohol-stabilized redispersible polymer powder which contains functional post-crosslinking comonomers, or a redispersible polymer powder stabilized by a polymer of one or more ethylenically unsaturated mono- or dicarboxylic acids and/or anhydrides thereof. The sand is bonded within the joints upon contact with moisture.

Abstract: The present invention discloses the use of a supercritical fluid to improve the homogeneity of heterogeneous bi- or multi-modal resins resulting from a physical or a chemical blend of two or more fractions of the same type of polymer resin, said fractions having different molecular weights or of two or more polymer resins having different chemical compositions, or both. It also discloses the use of a supercritical fluid to improve the dispersion of additives or fillers into a polymer resin. It further discloses the process for preparing the homogeneous resin.

Abstract: A method for preparing cold water-soluble polymer particles is described. The method includes subjecting a liquid containing a wetting agent or a powder of the wetting agent to dropping or spraying over or mixing with a starting water-soluble polymer particles while fluidizing the starting polymer particles without subsequent forced drying and grinding of the resulting particles. According to the invention, a powder or particulate product of a cold water-soluble polymer having excellent water wettability and capable of being quickly dissolved in water without formation of undissolved powder can be reasonably prepared and obtained from powdery or particulate water-soluble polymers without resorting to forced drying operations.

Abstract: A process for the production of a vulcanized elastomer composition, said process consisting in producing an aqueous dispersion containing at least latex with a small particle size and a filler having undergone a mechanical working stage and conventional vulcanization ingredients, in drying said dispersion and then vulcanizing it in a mould under pressure without subjecting said dried aqueous dispersion to mechanical working.

Abstract: A process for spherical-polymer-powder production by which polymer particles which are nearly spherical, small in particle diameter, and suitable for use as a molding material can be easily obtained. The spherical polymer powder has excellent powder flowability, is safe, and can form, e.g., a high-quality molding, skin material, or coating film which is excellent in weather-ability, flexibility, rubber elasticity, low-temperature characteristics, adhesion to polar resins, texture, appearance, etc. The process for spherical-polymer-powder production is characterized by comprising a step in which an aqueous dispersion comprising a solvent solution of a polymer, water, and a dispersant is heated with stirring under such conditions that the power per unit volume of the dispersion, P/V, is 0.2 kW/m3 or more to remove the solvent from the aqueous dispersion.

Abstract: A method of continuously devolatilizing a liquefied material utilizing an extruder having a barrel in which is disposed a plurality of continuously driven intermeshing conveying screws that continuously advance a flow of the liquefied material from an extruder inlet to an extruder outlet. The material contains 10-60 percent gaseous volatiles. Heat is introduced from an external source into the flow of liquefied material to progressively increase the temperature of the liquefied material being advanced, for promoting the separation of volatiles therefrom. Separated gaseous volatiles are vented through vapor escape ports formed in the extruder barrel, with the linear vapor velocity of the escaping volatiles not exceeding about 10-15 f/sec to avoid the venting of appreciable amounts of liquefied material along with the gaseous volatiles.

Abstract: Silicone-containing addition polymers having numerous uses are prepared by polymerizing addition polymerizable monomers in the presence of a silicone-containing polyvinyl alcohol, and/or by adding a silicone-containing polyvinyl alcohol to an aqueous addition polymer dispersion prior to spray drying, the silicone-containing polyvinyl alcohol containing at least one polymerizable group.

Abstract: A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked water-absorbing resin powders on an industrial scale and can produce a water-absorbing resin powder having excellent physical properties without causing deterioration in physical properties of resin.

Abstract: An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration dope is concentrated thereby to an concentrating dope which is contained and heated in the concentrating apparatus. Thus part of solvents of the low concentration dope and the concentrating dope is evaporated to a solvent gas. The solvent gas is cooled and condensed in a condensing section of the concentrating apparatus, and thereafter drawn through a first exit from the concentrating apparatus. The concentrating dope is concentrated to a high concentration dope, which is drawn through a second exit from the concentrating apparatus.

Abstract: A method is disclosed to prepare a polymeric material by filtering solutions of poly(arylene ether) and/or poly(alkenyl aromatic) through one or more filtration systems to provide a material having reduced levels of particulate impurities. The polymeric material prepared is suitable for use in data storage media applications.

Abstract: A process for rapidly infusing a synthetic resinous substrate with an alkali metal nitrite, comprises (a) essentially completely dissolving the alkali metal nitrite in supercritical carbon dioxide to form a solids-free solution having from about 1 to 15% by weight of the alkali metal nitrite; (b) contacting the synthetic resinous substrate with the solution for a time sufficient to transfer at least a portion of the alkali metal nitrite into the synthetic resinous substrate while maintaining the carbon dioxide under supercritical conditions; and, (c) decreasing pressure or temperature, or both, on the synthetic resinous material sufficiently to evolve carbon dioxide and leave micronized solid alkali metal nitrite crystals in an amount less than 2% by weight essentially uniformly distributed in the synthetic resinous substrate.

Abstract: Disclosed is a method of producing a powdery coating material by using: a curable polyester resin (A) having a hydroxyl group and/or a carboxyl group at the terminals thereof, and further having a number average molecular weight of from 1,000 to 30,000, a glass transition temperature of from 30 to 100° C.; a curing agent (B) which is solid at normal temperature and is capable of being reacted with the hydroxyl group or the carboxyl group of the curable polyester resin (A); and a solvent (C) having a boiling point under normal pressure of from 50 to 130° C.; and comprising a step of kneading the curable polyester resin (A), the curing agent (B) and the solvent (C) under condition in which at 50 to 130° C., not less than 20% by weight of the curing agent (B) is dissolved in the solvent and, then, vapor-removing the solvent (C) under a reduced pressure.