Abstract: A thermosetting resin composition containing a maleimide compound (a) having at least one N-substituted maleimide group, and a compound (b) represented by the following general formula (1) exhibiting no reactivity with the maleimide group of the component (a) (Xb1 represents a single bond or a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 5 carbon atoms; Rb1 and Rb2 each independently represent a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted heterocyclic aromatic hydrocarbon group having 5 to 20 ring atoms, an oxygen atom-containing group, or a group containing a combination of these groups; and m and n each independently represent an integer of 0 to 5).

Abstract: The present disclosure pertains to non-porous composite particles that are non-porous, polymer-based particles. In various embodiments, a non-porous polymer core is surface modified. In various embodiments, a non-porous hybrid organic-inorganic material is in contact with the modified surface of the core, and a bonding material is in contact with the non-porous hybrid organic-inorganic material. The present disclosure pertains to chromatographic separation devices that comprise such non-porous composite particles.

Abstract: A copolymer preparable by copolymerization of monomer components comprising: a) polydimethylsiloxane mono(meth)acrylate having a molecular weight of from 300 to 10000 grams/mole; b) optionally C3-C10 carboxylic acid-functional mono(meth)acrylate or a salt thereof; c) at least one C5-C16 hydroxyalkyl mono(meth)acrylate; and d) at least one of: i) C10-C30 linear alkyl mono(meth)acrylate optionally having one or two carbon atoms replaced by O or S; or ii) at least one (meth)acrylate represented by the formula wherein: R1 is H or a C1-C4 alkyl group; n is an integer from 0 to 18, inclusive; each X is O, S, C2-C6 oxyalkylenoxy, C2-C6 thioalkylenethio, or a covalent bond; and R2 is independently a C5-C50 hydrocarbyl group. The copolymer is useful as a water- and oil-repellent treatment on a substrate. Certain monomers corresponding to component ii) are also disclosed.

Abstract: A thermoplastic resin composition comprising: a graft copolymer (A) obtained by polymerizing a vinyl monomer mixture (m1) in the presence of a specific alkyl (meth)acrylate rubbery polymer (a); a graft copolymer (B) obtained by polymerizing a vinyl monomer mixture (m2) in the presence of a specific alkyl (meth)acrylate rubbery polymer (b); and a vinyl copolymer (C) obtained by polymerizing a vinyl monomer mixture (m3), wherein: a proportion of a rubbery polymer contained in the thermoplastic resin composition is 21 to 28% by mass, and a proportion of particles with a particle size of 300 nm or more among all particles formed by the rubbery polymer is 1 to 11% by mass.

Abstract: A resin composition contains a preliminary reaction product (A) obtained by previously reacting a polyphenylene ether compound (a1) having a hydroxyl group in a molecule and an acid anhydride (a2) having an acid anhydride group in a molecule, and a curable resin (B) containing a reactive compound having an unsaturated double bond in a molecule, in which an equivalent ratio of the acid anhydride group in the acid anhydride (a2) to the hydroxyl group in the polyphenylene ether compound (a1) is 1.5 or less, and a content of the curable resin (B) is 20 to 85 parts by mass with respect to 100 parts by mass of a sum of the preliminary reaction product (A) and the curable resin (B).

Abstract: This application provides a resin composition and an adhesive. The resin composition is composed of benzoxazine and a resin. The benzoxazine is synthesized from a primary amine-capped flexible polyimide oligomer, an aldehyde and a monofunctional phenolic compound. The resin contains one or more of an epoxy resin, a maleimide resin, and a cyanate ester resin containing two or more functional groups. The resin is 0.1%-70% by weight of the benzoxazine.

Abstract: A method to reinforce a built structure, wherein an impregnation resin including a resin component including at least one epoxy resin and hardener component including at least one amine of the formula (I) is used to impregnate woven or stitched fabric, which is wrapped around and/or adhered onto built structure. The inventive method preferably serves to improve earthquake safety of buildings, as replacement for missing reinforcement inside concrete, for improvement of strength and ductility or for increase of payload of a built structure. It enables the application of an emission-free impregnation resin with low odour, which has a long open time and good penetration into the fabric, shows fast and reliable curing without tendency to blushing, and forms a dry, non-sticky surface. The cured impregnation resin has a high strength, a high glass transition temperature and good adhesion properties, enabling a good durability and long-term stability of the reinforced structure.

Abstract: The invention provides for polymer structures and their preparation and resulting novel functionalities including open-shell character and high intrinsic conductivity with wide-range tenability. Electrical conductivity can be further modulated by introducing or blending with materials, fillers, dopants, and/or additives. The materials or resultant composites of the invention can be processed by various techniques into different forms to realize multiple applications.

Abstract: A polylactic acid resin composition includes a polylactic acid resin in an amount of 99% by mass or more. A complex viscosity ?*(20) of the polylactic acid resin composition is 2×103 Pa·s or higher. A ratio of the complex viscosity ?*(20) to a complex viscosity ?*(5), which is represented by [?*(20)/?*(5)], is 0.6 or higher. The complex viscosity ?*(5) and the complex viscosity ?*(20) are complex viscosities respectively measured 5 minutes and 20 minutes after the start of measurement using a parallel plate-type rotary viscometer under measurement conditions below: [Measurement Conditions] Parallel plates: 20 mm in diameter, made of aluminum; Temperature: 200° C.; Gap between the parallel plates: 1.00 mm; Frequency: 1 Hz (6.28 rad/s); Atmosphere: under dry air (dew point: ?60° C.); and Size of measurement sample: a strip that is 30 ?m thick, 7 mm wide, and 35 mm long.

Abstract: Provided are a resin composition for coating, containing a polymer having a structural unit represented by Formula (I), a structural unit represented by Formula (II), and a terminal structure represented by Formula (III-A) or (III-B), in which, in the polymer, the structural unit represented by Formula (I) is 10% by mass or more, and a content of the structural unit represented by Formula (II) is 10% by mass or more; the polymer; a method for producing a polymer having a structural unit represented by Formula (II); a coating film containing the polymer; and a method for forming a coating film.

Abstract: Poly(amine-co-ester) polymers, methods of forming active agent-load polyplexes and particles therefrom, and methods of using them for delivery of nucleic acid agents with optimal uptake have been developed. Examples demonstrate critical molecular weights in combination with exposed carboxylic and/or hydroxyl groups, and methods of making. Typically, the compositions are less toxic, more efficient at drug delivery, or a combination thereof compared to a control other transfection reagents. In some embodiments, the compositions are suitable for in vivo delivery, and can be administered systemically to a subject to treat a disease or condition.

Abstract: Described herein is a biodegradable polymer comprising an amine-terminated polyester polymer. Also described herein are microparticles comprising the biodegradable polymer; a method of producing the biodegradable polymer comprising initiating a ring-opening polymerisation of a cyclic ester with an amino alcohol initiator; and a variety of uses for the biodegradable polymer, including in tissue engineering and regenerative medicine, for example, as a microcarrier for biologics.

Abstract: The invention contemplates certain polyethers, polyether derivatives, and methods of making and using those same polymers. For example, the starting materials can, e.g., citronellol, prenol, isocitronellol and isoprenol.

Abstract: The present disclosure provides a fluorine-containing polyether compound having a repeating unit represented by formula (1). In formula (1), n represents an integer of 1 to 8, Ph represents a phenylene group, X1 represents a heterocyclic ring or a hydrocarbon ring, one or both of two phenylene groups represented by Ph, and the heterocyclic ring or hydrocarbon ring represented by X1 are optionally condensed with each other, and the phenylene group, the heterocyclic ring, and the hydrocarbon ring optionally have a substituent.

Abstract: A method for producing polyamide particles may include: mixing a mixture comprising a polyamide, a carrier fluid that is immiscible with the polyamide, and nanoparticles at a temperature greater than a melting point or softening temperature of the polyamide and at a shear rate sufficiently high to disperse the polyamide in the carrier fluid; cooling the mixture to below the melting point or softening temperature of the polyamide to form solidified particles comprising polyamide particles having a circularity of 0.90 or greater and that comprise the polyamide and the nanoparticles associated with an outer surface of the polyamide particles; and separating the solidified particles from the carrier fluid.

Abstract: A polyimide precursor having a structural unit represented by the following formula (1):

Abstract: The present disclosure relates to a polyimide-based resin film comprising a polyimide-based resin containing a polyimide repeating unit represented by Chemical Formula 1 and a polyimide repeating unit represented by Chemical Formula 2, a substrate for display device, and an optical device using the same.

Abstract: A bisimide phenyl ester acid dianhydride represented by the following formula (2): where R3 and R4 each independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms; each m is independently an integer of 1 to 4; and each A independently represents an aromatic ring or an alicyclic ring.

Abstract: [Purpose] A purpose of the present invention is to provide a condensation-curable silicone composition having a curing property and storage stability. [Solution] The present invention provides a condensation-curable silicone composition comprising organopolysiloxane having an alkoxysilyl group and a compound represented by the following general formula (1): wherein R1 and R2 are, independently of each other, a hydrogen atom or an unsubstituted or substituted, monovalent hydrocarbon group having 1 to 12 carbon atoms, Ar is an unsubstituted or substituted aryl group having 6 to 20 carbon atoms or a heteroaryl group having 3 to 20 carbon atoms, and m is an integer of 0 to 3. Further, the present invention provides a method for preparing a silicone cured product that includes a step of subjecting the organopolysiloxane having an alkoxysilyl group to hydrolytic condensation in the presence of the compound represented by the afore-mentioned general formula (1) to obtain the silicone cured product.

Abstract: The invention provides a process for preparing a plasticised superporous hydrogel material comprising subjecting initial hydrogel material to treatment with an acidic solution, an optional treatment with a monovalent metal salt solution, freeze drying and plasticisation. Optionally, the process of the invention produces moulded plasticised superporous hydrogel material bodies that have one or more through-holes formed therein. The plasticised superporous hydrogel material of the present invention may be formulated as a suitable oral dosage form for use an appetite suppressant and for use to deliver a pharmaceutical and/or nutraceutical into a human or animal body.

Abstract: Spreadable granules as infill granules for grass and artificial turf fields are proposed, which granules have a polymer matrix with a percentage between 10% by mass and 100% by mass of at least one biodegradable polymer and at least one filler from the group of natural fillers, embedded in the polymer matrix with the at least one biodegradable polymer. The invention provides for the spreadable granules to have at least one filler from the group including comminuted fruit kernels. In addition, the invention relates to the use of such spreadable granules as infill granules for grass and artificial turf fields, as a spacer material for the storage of construction materials, such as, e.g., floor covering materials, and as grit for road maintenance in winter.

Abstract: Provided is a resin composition having excellent electromagnetic wave shielding properties. A resin composition containing: a thermoplastic resin (A); graphite (B); and two or more kinds of carbon black (C), the two or more kinds of carbon black (C) including a first carbon black (C-1) having a BET specific surface area of 600 m2/g or more and a second carbon black (C-2) having a BET specific surface area of less than 600 m2/g.

Abstract: A method is provided for producing a resin composition including an olefin-based polymer; an inorganic filler; and a lubricant, in which the olefin-based polymer is at least one polymer selected from a propylene-based polymer and an ethylene-based polymer having a melt flow rate of 0.5 g/10 minutes or more measured at a temperature of 190° C. and a load of 2.16 kg. The method includes a step (1) of mixing the inorganic filler and a lubricant; a step (2) of mixing a mixture obtained in the step (1) and the olefin-based polymer; and a step (3) of kneading a mixture obtained in the step (2).

Abstract: A problem of heat dissipation in motors, converters, high-luminance LEDs, power devices, power supplies, and the like becomes significant. Provided is a means for capable of providing a product, which has favorable workability, segregation stability, storage stability, and the like, penetrates into a gap in a coil portion, an interface in casing, and the like without any gaps, enhances thermal conductivity/heat dissipation properties of a molded product thus obtained, and is excellent in electrical characteristics, toughness/elastic modulus, thermal resistance, thermal cycle properties, and the like, in the case of using the product for a cast molding resin, a pottingmaterial (sealingmaterial), an adhesive, grease, and the like.

Abstract: A process for manufacturing a cross-linked hyaluronic acid (HA) gel product is comprising the steps of: (a) preparing an aqueous mixture of HA and a cross-linking agent selected from multiepoxides and diepoxides; wherein the HA is dissolved in an aqueous solution containing 1-10% (w/w) inorganic hydroxide; and wherein the dissolved HA constitutes more than 10% (w/w) of the final mixture; and (b) subjecting the aqueous mixture to cross-linking conditions to allow the dissolved HA to react with the cross-linking agent so as to obtain a cross-linked HA gel product.

Abstract: A composite material includes a recycled polymer matrix, a continuous network of linked carbon nanostructures dispersed within the recycled polymer matrix, and a compatibilizer. The recycled polymer matrix is in an amount of at least 90 wt. %. The continuous network of linked carbon nanostructures is in an amount between 0.5 wt. % to 1.0 wt. %. The compatibilizer is in an amount of about 3.0 wt. %.

Abstract: A resin film is provided. When the resin film is characterized by Fourier transform infrared spectroscopy (FTIR), the Fourier transform infrared spectrum of the resin film has a signal intensity A from 2205 cm?1 to 2322 cm?1 and a signal intensity B from 1472 cm?1 to 1523 cm?1, and 0.70?A/B?1.95.

Abstract: A composition of matter includes a solid resin powder containing one or more polymer precursors in a range of 80-99.99 wt % polymer precursor and the thermal initiator in a range of 0.001 to 20 wt % of thermal initiator. A composition of matter includes a solid resin powder containing polymer precursors comprising two components in a combination and a thermal intiator, wherein the combination comprises one of a solid epoxy with one of solid amine or anhydride, a powder resin containing both epoxy and one of either amine or anhydride, or two powder resins wherein one contains epoxy and one contains one of either amine or anhydride.

Abstract: A kit includes a vessel having a plasma-treated interior surface, solid composition adhered to the plasma-treated interior surface, and a reconstitution liquid. The solid composition has a mass ranging from about 600 micrograms to about 20 grams and is in the form of a lyophilized pellet adhered to the plasma-treated interior surface. The solid composition is macroscopic in three orthogonal dimensions, such that the solid composition is not a coating and has a length, a width, and a height of greater than 1 mm.

Abstract: Described herein are conductive elastomeric foam materials and methods of making and using the same. The conductive elastomeric foam materials include a polymeric matrix, one or more conductive fillers, and one or more foaming agents. The polymeric matrix can include a thermoset polymer or a thermoplastic polymer. Also described herein are methods of making conductive elastomeric foam materials. Further described herein are molded products including the conductive elastomeric foam materials as described herein and wearable devices including the molded products.

Abstract: Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

Abstract: The invention pertains generally to a shelf-stable polyurethane HFO-blown two-component polyurethane foam composition which includes incorporating nitrogen-containing aminopolyols.

Abstract: This provides an improved process for making a flexible, porous, dissolvable solid sheet article with improved pore structures.

Abstract: A modular system and process are described for recycling textile waste of various compositions into new ready to use fibers for garment manufacturing or other uses.

Abstract: A method for purifying a reclaimed polymer to a purer polymer is disclosed. In embodiments of the present invention, the method involves obtaining a reclaimed polymer, leaching various contaminants with a leaching solvent producing a leached polymer, extracting the leached polymer with a first fluid solvent to produce an extracted polymer, and then dissolving the extracted polymer in a solvent to produce a first solution comprising the dissolved polymer. The first solution is settled and then filtered. A purer polymer is separated from the resulting solution.

Abstract: An organometallic compound is incorporated into a vulcanized rubber matrix. A tunable, multi-phase copper sulfide lattice is compounded within an existing sulfur cross-linked morphology, as in crumb rubber obtained from recycled tires or other vulcanized rubber, whereby thermotropic properties of the rubber matrix are modulated. The process involves breaking of sulfur-sulfur and/or sulfur-carbon bonds through action of the carbon sulfide. The resulting rubber is suitable for use in applications typically utilizing virgin rubber, such as new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications. In other embodiments, an organometallic compound comprising iron acetate or alkaline earth metal acetate is incorporated into the vulcanized rubber matrix.

Abstract: Disclosed are methods for polypropylene decomposition. Also disclosed are products obtained from the decomposition polypropylene including carboxylic acids, dicarboxylic acids, nitro-substituted carboxylic acids and dicarboxylic acids; as well as the salts, esters, and anhydrides thereof.

Abstract: Laser-markable dark-colored insulation materials that produce light-color marking with remarkably high contrast and durability, when marked with UV laser, are disclosed. Also disclosed are materials, synthesis, and application of the laser-markable insulation materials, and methods of making the insulation materials.

Abstract: A rubber composition for tire treads comprising zinc oxide wherein the zinc oxide contains aluminum and iron. It is preferred that the zinc oxide has a content of the iron of 15 ppm or more and 100 ppm or less and a content of the aluminum of 40 ppm or more and 100 ppm or less. It is more preferred that the zinc oxide has a ratio of a content of the iron to a content of the aluminum of 0.2 to 2.3. It is more preferred that the zinc oxide has a content of the iron of 15 ppm or more and 80 ppm or less.

Abstract: A rubber composition comprising a zinc oxide which comprises aluminum and iron. The zinc oxide's content of the iron is preferably 15 ppm or more and 100 ppm or less and the zinc oxide's content of the aluminum is 40 ppm or more and 100 ppm or less. The zinc oxide's ratio of a content of the iron to a content of the aluminum is preferably 0.2 to 2.3. The zinc oxide's content of the iron is preferably 15 ppm or more and 80 ppm or less. The rubber composition is used for rubber-steel cord composites.

Abstract: Provided are a boron nitride powder having a relatively small particle size, in which an amount of metal impurities present on a surface of the boron nitride powder is significantly reduced, and extremely high purity is achieved, and a method for producing the boron nitride powder. A hexagonal boron nitride powder has an average particle size (D50) of 2.0 to 6.0 ?m and a specific surface area measured by a BET method of 4 to 12 m2/g, in which a concentration of a calcium element is 1 ppm or less, a concentration of a silicon element is 5 ppm or less, a concentration of a sodium element is 5 ppm or less, and a concentration of an iron element is 1 ppm or less on a surface of hexagonal boron nitride particles constituting the powder, the hexagonal boron nitride powder preferably has an average aspect ratio (major axis/thickness) of 1 to 7, and is useful as a filler for resin.

Abstract: A metal-rubber composite, comprising a metal and a rubber of which at least a portion is adhered to the metal, the composite is characterized in that: a ratio (C1/C2) of the total concentration (C1) of at least one metal element selected from the group consisting of bismuth, copper, antimony, silver, niobium, molybdenum, zirconium, and nickel in a region within 100 nm measured from an adhesion interface of the metal and the rubber toward the rubber side, with respect to the total concentration (C2) of at least one metal element selected from the group consisting of bismuth, copper, antimony, silver, niobium, molybdenum, zirconium, and nickel in a region between the 100 nm depth and the 200 nm depth, measured from the adhesion interface toward the rubber side, is 7.0 or larger.

Abstract: A rubber composition having improved antiozonation performance comprising a substituted hydroxyl-phenyl-p-(hydroxy)phenylenediamine. Such a composition is particularly suitable for rubber articles. The improved rubber composition possesses a long lasting antiozonation performance, slowing migration through the rubber article and reducing effluence of the antiozonant. Such rubber articles may include rubber pneumatic tires, solid tires, non-pneumatic tires, belts, hoses, cables, automotive mounts, bushings and general mechanic products that are exposed to continuous and intermittent dynamic operation conditions and require protection from ozonation.

Abstract: An object of the present invention is to provide a rubber composition for hoses that can be a cured product having excellent hardness and elongation at break through only primary crosslinking. The present invention is a rubber composition for hoses including a ternary copolymer including each constituent unit of ethylene, a (meth)acrylic acid ester, and a carboxyl group-containing monomer including a carboxyl group, hexamethylenediamine carbamate, diazabicycloundecene, carbon black, and a plasticizer, the rubber composition having a content of the carbon black of from 77 to 87 parts by mass per 100 parts by mass of the ternary copolymer, a transmission oil pipe for automobiles formed by using the rubber composition for hoses, and a method for producing the same.

Abstract: This invention relates to a curable composition for forming high refractive index optical material and optical material comprising the same, and more specifically, to a curable composition for forming high refractive index optical material comprising an episulfide compound and a sulfur-containing polymer compound, and optical material comprising the same.

Abstract: This invention relates to a flame retardant fiber-reinforced composite material based on an epoxy resin composition which includes at least one epoxy resin having an epoxy functionality of at least 2 as well as at least one organic phosphinic acid or derivative thereof (e.g., an organic phosphinic acid-modified epoxy resin), reinforced with a fiber having a thermal conductivity?3 W/m·K at room temperature, as well as a prepreg for making such a flame retardant fiber-reinforced composite material. More specifically, a composite material is provided that contains a combination of particular types of epoxy resins, curatives, and reinforcing fibers that provide sufficient flame retardance for thin-ply laminates when cured at 163° C. for 15 minutes. These cured composites are also suitable for a variety of applications requiring flame retardancy.

Abstract: Disclosed is a composite comprising: from about 50 wt. % to about 99 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polyester; and from about 0.1 wt. % to 15 wt. % of a carbon fiber filler, wherein the carbon fiber has a bulk density of at least 500 g/l and a volume electrical resistivity of less than 2,000 ??#cm, with individual filaments that have a length-to-diameter ratio of at least 300, wherein a 3.175 mm thick molded sample of the composite exhibits a Transmission of less than 15% of incident microwave radiation when observed according to a Free Space method, measured at frequencies of 75 to 110 GHz, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composite.

Abstract: Polymer-coated nanoparticles, a composite nano-emulsion and a macro-emulsion are provided. In the polymer-coated nanoparticles, the polymer self-assembles into a cage-shaped structure to coat the nanoparticles; and the nanoparticles are iron-containing metal oxides. The polymer-coated nanoparticle shell provided by the present invention can be used as a stabilizer to prepare a composite nano-emulsion, and furthermore, a stable macro-emulsion can be prepared at an extremely low concentration. The problems that high-concentration surfactants and solid particles are required to stay on an oil-water interface in macro-emulsion synthesis, and surface tension is reduced to stabilize large oil drops are overcome.

Abstract: A polycationic polysaccharide and an application thereof is disclosed. Specifically, the polycationic polysaccharide consists of a polysaccharide and a polyamine compound, and is a positively charged polycationic polysaccharide obtained by reacting a polysaccharide with an amine-containing or polyamine compound. The polycationic polysaccharide is applied in a biomedical functional material of an antibacterial biofilm, a biomedical device, and an antibacterial functional material.

Abstract: Polyethylene blends made from recycled polyethylene and a bimodal polyethylene composition are disclosed. The polyethylene blends are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.