Abstract: A antibacterial resin includes a copolymer having a first unit derived from styrene and a second unit derived from a monomer represented by Chemical Formula 1. The copolymer has a weight average molecular weight of 10,000 g/mol or more and 1,000,000 g/mol or less. A molded article includes the antibacterial resin.

Abstract: A cyclic olefin copolymer that is a copolymer of a cyclic olefin monomer and an ?-olefin having 3 or more and 20 or less carbon atoms, which has excellent tensile strength and breaking strain, and a method for producing the cyclic olefin copolymer. In the copolymer, the amount of structural units derived from the ?-olefin is 10 mol % or more and 50 mol % or less relative to the entire structural units, and in a one-dimensional scattering curve with respect to the scattering vector q of small angle X-ray scattering for the cyclic olefin copolymer, a value obtained by dividing the half value width of a primary peak by the q value of the peak top thereof is in the range of 0.15 to 0.45.

Abstract: Embodiments of the present disclosure are directed to polymers, wherein the polymers include a conjugated diene and from about 0.02 wt. % to about 2.0 wt. % of vinylbenzocyclobutane, based on a total weight of the polymer. The polymer is a crosslinkable statistical copolymer of conjugated diene and vinylbenzocyclobutane monomer units.

Abstract: A composition includes (I) an alkali-soluble material; and (II) a fluorine-containing compound having a crosslinking group, wherein a mass ratio of a content of the component (II) to a content of the component (I) ((II)/(I)) is 0.0000005 to 0.01. A cured film is made from the composition.

Abstract: The invention provides a carbon dioxide-based polyurethane elastomer with damping and anti-fatigue aging properties and its preparation method. It is obtained from Component A and Component B; Component A includes: PTMG-1000 45˜60 parts, carbon dioxide-based polyol 25˜30 parts, poly-DOPO-ITA-pentanediol ester 10˜20 parts, BDO 3˜5 parts, water 0.3˜0.5 parts, N-methylimidazole 0.5˜0.8 parts, bis(2-dimethylaminoethyl) ether 0.1˜0.2 parts, needle-shaped nano-titanium dioxide 0.5 parts, hindered phenol 0.2˜0.5 parts, dibutyltin dilaurate 0.1˜0.3 parts, strontium chloride 0.005˜0.01 parts, rhodium chloride 0.02˜0.03 parts, foaming agent 0.2˜0.5 parts; Component B includes: carbon dioxide-based polyol 50˜55 parts, MDI-50 45˜50 parts, organic zinc 0.01˜0.02 parts, organic bismuth 0.01˜0.02 parts.

Abstract: A polythiourethane film comprising polythiourethane, wherein the polythiourethane is a reaction product of a bifunctional thiol compound, a trifunctional or higher thiol compound, and an isocyanate compound.

Abstract: This invention refers to a liquid base product that comprises vegetable oil, and/or blond glycerin, and/or animal fat and nitrilotriethanol: a liquid formulated product that comprises the base product and organic surfactants, the catalysts, reagents, and/or water; a liquid final product that comprises the formulated product and at least an isocyanate. This invention also refers to a biodegradable solid product formed from a liquid final product. This invention also refers to a biodegradable product fabrication process.

Abstract: Provided are a fatigue-resistant supramolecular polyurethane (PU), and a preparation method and use thereof. The preparation method includes: mixing a diol, a diisocyanate, a catalyst, and a first organic solvent to obtain a mixture, and subjecting the mixture to prepolymerization to obtain a PU prepolymer, the diol being selected from the group consisting of a polyester diol and a polyether diol; mixing the PU prepolymer, 4,4?-diaminodicyclohexylmethane, and a second organic solvent to obtain a mixed mixture, and subjecting the mixed mixture to chain extension to obtain a chain extension product; and mixing the chain extension product, reinforcing phase total organic carbon (TOC), and a third organic solvent to obtain a mixed system, and subjecting the mixed system to first addition reaction to obtain the fatigue-resistant supramolecular PU, the reinforcing phase TOC having a structure shown in formula I.

Abstract: Provided is a phenoxy resin capable of obtaining a cured product having excellent flexibility, being capable of suppressing warping due to curing shrinkage, and having a self-healing function. The phenoxy resin includes a structure represented by the following formula (1) and a structure represented by the following formula (2): wherein R is a C10-C18 hydrocarbon group, and 1 is an integer of 1 to 10; wherein X is a C2-C10 divalent linking group derived from a hydrocarbon, R is a C10-C18 hydrocarbon group, and m is an integer of 1 to 10.

Abstract: A polybutylene adipate terephthalate resin composition, and a method for preparing the same. The polybutylene adipate terephthalate resin composition includes a polybutylene adipate terephthalate resin, a chain extender, and a gel reducer. The polybutylene adipate terephthalate resin composition suppresses gel formation during the preparation process, and exhibits excellent mechanical properties and external appearance.

Abstract: A poly(ether ester) copolymer including a polymer matrix containing a polyether-based repeating unit and a polyester-based repeating unit, and a mono-metallic salt of an inorganic acid and a multi-metallic salt of an inorganic acid that remain in the polymer matrix, and a method for preparing the same.

Abstract: A titanium-based composite catalyst for polyester synthesis, preparation method and application thereof are provided. The preparation method is: preparing a titanium-silicon catalyst precursor first, adding the titanium-silicon catalyst precursor to a biochar material in a certain mass ratio and mixing evenly, and aging, drying, calcining and wet grinding to obtain a titanium-silicon composite catalyst, and then mixing the titanium-silicon composite catalyst and a phosphate ester with a mass ratio of 1:(0.001-0.5) to obtain the titanium-based composite catalyst. The titanium-based composite catalyst is composed of the phosphate ester and the titanium-silicon composite catalyst, wherein the phosphate ester is adsorbed and wrapped on the surface of the titanium-silicon composite catalyst; the phosphate ester is combined with a titanium-silicon catalyst in the titanium-silicon composite catalyst by van der Waals force.

Abstract: A modified polyethylene terephthalate copolyester, including three fragments shown as [Fragment 1], [Fragment 2], and [Fragment 3] in the specification, is provided.

Abstract: Provided is a polycarbonate resin having a relaxation time of 2 seconds to 15 seconds at 250° C. and a residual phenol content of 3,000 ppm or less.

Abstract: The present invention relates to a polycarbonate copolymer, a method for producing same, and a molded product comprising same, and more specifically, to: a polycarbonate copolymer exhibiting biodegradability and improved tensile strength and elongation compared to conventional polycarbonate copolymers due to including repeating units derived from a carbonate diester component and a diol component containing anhydrosugar alcohol, anhydrosugar alcohol-alkylene glycol, and aromatic diol in a specific content ratio; a method for producing the polycarbonate copolymer; and a molded article comprising the polycarbonate copolymer.

Abstract: A method for producing an activated polyethylene glycol compound having a carbamate bond between a polyethylene glycol moiety and a functional group capable of reacting with a bio-related substance or a precursor of the functional group, includes: reacting a polyethylene glycol raw material having a nitrophenyl group at a terminal thereof with an amine compound having the functional group capable of reacting with the bio-related substance or the precursor of the functional group in a solution containing an aprotic solvent to obtain a reaction mixture containing the activated polyethylene glycol compound and 4-nitrophenol; adding a basic aqueous solution having a pH of 10 or more and 14 or less to the reaction mixture to obtain a two-phase mixture; and separating an organic layer of the two-phase mixture from an aqueous layer of the two-phase mixture and recovering the activated polyethylene glycol compound from the organic layer.

Abstract: The present disclosure relates to 3-arm star-shaped polycationically charged polymers consisting of a 1,3,5-benzenetricarboxamide related central core and 3 polypeptide backbone arms and its use as carriers for the delivery of active agents, such as nucleic acids.

Abstract: The present invention relates to new anionic polymers which are useful as shielding for positively charged proteins or polycation-based non-viral vectors for delivery of proteins or active ingredients, including nucleic acids, to cells.

Abstract: The present invention relates to a copolymer having several azide functionalities that can be prepared by cationic ring opening polymerisation. The copolymer comprises a first monomer unit and a second monomer unit which are different from each other.

Abstract: The invention provides certain polyesteramide compositions which have glass transition temperatures (Tg) of greater than or equal to 0° C. The polyesteramides of the invention are useful as polymeric interlayers for laminate structures, for example, safety glass, where excellent toughness is combined with high adhesion to glass.

Abstract: A novel benzoxazine compound is represented by general formula (1): wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents an alkylene group having 1 to 6 carbon atoms, and X represents a cycloalkylidene group having 5 to 20 carbon atoms. The benzoxazine compound also constitutes a resin raw material composition, a curable resin composition, and a cured product thereof.

Abstract: The present invention relates to polyimide powder and a manufacturing method therefor. Being polymerized from diamine monomers and dianhydride monomers using graphene, the polyimide powder according to the present invention exhibits electroconductivity whilst having minimal reduction in tensile strength and elongation, and thus can be provided as a polyimide powder capable of preventing static electricity.

Abstract: A method for producing a resin composition is disclosed. The method for producing a resin composition includes: obtaining a polyimide resin by reacting a tetracarboxylic dianhydride with a polyamine in an organic solvent; and obtaining a resin composition containing a polymaleimide resin and the organic solvent by reacting the polyimide resin with maleic anhydride. The polyamine contains dimer diamine. The organic solvent contains 1,2,4-trimethylbenzene.

Abstract: The present disclosure relates to poly(ester-imide)s (“PEIs”) exhibiting low dielectric constant and dissipation factors, and uses thereof. Such polymers can be used for producing articles, such articles being suitable for mobile electronic device components, for example films or structural components. The present disclosure further relates to solutions comprising the PEIs and use of the solutions for the manufacture of films or mobile electronic device articles or components.

Abstract: The present invention relates to a method for preparing a composite solid electrolyte having high ionic conductivity and capable of continuous process and mass production.

Abstract: Kraft lignin was modified with phytic acid (C6H18O24P6 PHA), a bio-based reagent with high amount of phosphorus, in a facile solvent-free reaction at low temperature, to produce a novel reactive bio-based flame retardant. The thermochemical properties of the fabricated lignin derivative were comprehensively analyzed by advanced tools, such as 1H NMR, 31P NMR, HSQC-NMR, XPS, ICP-AES, TGA, and DSC. A smoke detector and limiting oxygen index investigated the flame retardancy behavior of modified lignin used for coating wood samples.

Abstract: A preparation method for a high-strength and high-biocompatibility silk fibroin hydrogel scaffold with a biomimetic microstructure for repair and reconstruction of tendons/ligaments. The preparation method includes processing a natural silk fibroin material through directional freezing and coaxial hot stretching. The heating temperature is higher than a glass transition temperature of the silk fibroin material, such that a maximum tensile strength of the silk fibroin hydrogel scaffold increases, a microscopic directional pore structure is formed, and finally a mechanically reinforced hydrogel scaffold with good biocompatibility is obtained. The artificial tendon/ligament scaffold prepared by using the hydrogel scaffold reaches mechanical strength similar to that of the tendons/ligaments in the human body and has good biocompatibility.

Abstract: The present disclosure refers to a method of preparing a hydrogel, comprising: (i) preparing a mixture of water-soluble polymer, inorganic acid, and radiation-reflecting inorganic particles; (ii) adding a crosslinking agent to the mixture to form a hydrogel precursor; (iii) freezing and thawing the hydrogel precursor thereby forming a hydrogel, wherein the hydrogel precursor comprises: about 5 wt % to about 30 wt % of water-soluble polymer; about 0.3 wt % to about 2.5 wt % of inorganic acid; about 0.05 wt % to about 0.5 wt % of crosslinking agent; and about 3 wt % to about 70 wt % of a radiation-reflecting inorganic particle, wherein the wt % is based on the total weight of the hydrogel precursor. The present disclosure also refers to a hydrogel precursor, and a hydrogel obtained by the method disclosed herein. The present disclosure also refers to a hydrogel comprising: about 5 wt % to about 30 wt % of water-soluble polymer; about 0.1 wt % to about 1.

Abstract: Polymer-ceramic composite particles, molded parts, and methods. The composites, in powder form, comprise a plurality of composite particles each comprising an agglomeration of polybutylene terephthalate (PBT) particle physically bonded to a plurality of aluminum oxide (AI2O3) particles, where at least some of the AI2O; particles are exposed to an exterior of the agglomeration of PBT particles. Such composite powders comprises between 50% and 90% by volume of AI2O3, and between 10% and 50% by volume of PBT. In pellet form, PBT particles of adjacent composite particles are joined to resist separation of the adjacent composite particles and deformation of a respective pellet.

Abstract: A method prepares a curable composition based on ground composite material from the recycling of discarded composite elements such as old pipes or rotor blades of wind power plants. The ground composite material allows for the replacement of virgin short glass fibers and fumed silica commonly employed in such compositions used as structural adhesives essentially without any negative impact on the performance.

Abstract: A method for producing a masterbatch includes feeding (e.g., continuously feeding) a first composition containing an elastomeric latex (e.g., a natural rubber latex) to a coagulation chamber; and feeding (e.g., continuously feeding) a second composition containing a particulate filler (e.g., carbon black) to the coagulation chamber. The carbon black is fed directly from a sonication chamber to the coagulation chamber and/or a sonication device facilitates ultrasonic mixing within the coagulation chamber. The first composition and the second composition are mixed in the coagulation chamber to form the masterbatch. The second composition may be fed to the coagulation chamber at a pressure of at least about 300 psig and/or a velocity of at least about 100 feet per second. The masterbatch may be dry mixed with an additional elastomer to form an elastomeric composite blend.

Abstract: A method for producing a masterbatch includes continuously feeding a first composition containing an elastomeric latex to a coagulation chamber; and continuously feeding a second composition containing a particulate filler and a salt to the coagulation chamber. The first composition and the second composition are mixed in the coagulation chamber to form the masterbatch. The salt may be provided so that a salt concentration in the coagulation chamber matches that necessary to bring a magnitude of the zeta potential of the latex to be within a range of 30 to 15 mV, 15 to 1 mV, or 1 to 0 mV. The second composition may be fed to the coagulation chamber at a pressure of at least about 300 psig and/or a velocity of at least about 100 feet per second. The masterbatch may be dry mixed with an additional elastomer to form an elastomeric composite blend.

Abstract: A glass-fiber-reinforced resin molded product that has impact absorption properties at break and impact resistance at the unbroken phase in combination and in good balance with handleability. The glass-fiber-reinforced resin molded product contains glass fiber having a fiber diameter D within 5.0 to 17.0 ?m, a linear expansion coefficient ? within 2.0 to 6.0 ppm/K, and a tensile modulus E within 58 to 92 GPa, and has a glass fiber content C within 10.0 to 50.0% by mass with respect to the total amount of the glass-fiber-reinforced resin molded product, and the heat of crystallization Q of the product is within 30.0 to 60.0 J/g with respect to the mass of resin contained in the glass-fiber-reinforced resin molded product, and D, ?, E, C, and Q satisfy following formula (1): 16.02 ? Q × E / ( D 1 / 3 × C 1 / 2 × ? 2 ) ? 2 ? 7 .

Abstract: The present disclosure provides a moisture permeable waterproof film. The moisture permeable waterproof film includes polyurethane including a hard segment, a first soft segment, and a second soft segment. The first soft segment includes an aromatic polyether-ester group. A modulus of the moisture permeable waterproof film is more than about 50 kgf/cm2, and a moisture permeability of the moisture permeable waterproof film is more than about 30000 g/m2*24 hr. When an amount of the first soft segment is about 1 mole, an amount of the hard segment is equal to or more than about 4.5 moles.

Abstract: A window for a display device includes: a base substrate; and a protective layer provided on the base substrate, wherein the protective layer includes a plurality of sub-layers sequentially stacked, wherein the base substrate and the protective layer include at least one material selected from polyimide, polyethylene naphthalate, polycarbonate, polyurethane, polydimethylenesiloxane, rubber, and polyethylene terephtahlate, wherein the plurality of sub-layers are formed of different materials.

Abstract: A fiber-reinforced aerogel is disclosed. The aerogel can include a porous organic polymer matrix and fibers included in the porous organic polymer matrix. The aerogel can include a thermal conductivity of less than or equal to 60 mWIm·K at a temperature of 20° C., at least a bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm, and a planar shape having a thickness of 5 millimeters (mm) or less and is capable of being rolled up into a roll, wherein the fibers form a woven fiber matrix.

Abstract: The present invention relates to a method for obtaining a monomer by degrading a polymer, the polymer being a homo or copolymer of the monomer, the method comprising the steps of providing the polymer and a solvent as a reaction mixture in a reactor, wherein the solvent is a reactant capable of reacting with the polymer to degrade the polymer into oligomers and at least one monomer; providing a reusable catalyst being capable of degrading the polymer into oligomers and at least one monomer; degrading the polymer in the reaction mixture at reaction conditions using the catalyst to form a monomer; and recovering the catalyst from the reaction mixture; wherein the method further comprises the addition of a base to at least one of the reaction steps. The present invention furthermore relates to the use of a base as a co-catalyst for a catalyst for degrading a polymer in a reaction mixture at reaction conditions.

Abstract: The present invention pertains to a method for producing terephthalic acid in an eco-friendly manner using waste polyester. Specifically, according to an embodiment of the present invention, the method for producing terephthalic acid comprises the steps of: (1) subjecting waste polyester to alcoholysis using a C4 or higher alcohol to produce a liquid composition containing a compound represented by formula 1; and (2) subjecting the liquid composition to hydrolysis, and thus can produce terephthalic acid in an eco-friendly manner, as well as improve processability and reduce process costs.

Abstract: Processes and systems for producing recycled content polyethylene terephthalate (r-PET) are provided. Integration of chemical recycling facilities with PET production facilities reduces energy consumption and helps minimize adverse environmental impacts, while providing valuable end products having up to 100 percent recycled content.

Abstract: The present invention relates to a reaction mixture for manufacturing an inorganic-filler based closed-cell rigid polyurethane or polyisocyanurate (PU or PIR) containing foam having a calorific value below 6 MJ/kg, preferably below 4.5 MJ/kg, more preferably below 3 MJ/kg, measured according to EN ISO 1716, the reaction mixture comprising: At least one polyisocyanate-containing compound; At least one isocyanate-reactive compound; An inorganic filler composition; At least one physical blowing agent; characterised in that said inorganic filler composition has bulk density ranging from 1 to 2 g/cm3, preferably from 1.5 to 2 g/cm3, characterised in that said reaction mixture further comprises an added amount of water by weight lower than 1.

Abstract: Provided are a plasticizer composition that exhibits excellent performances as a plasticizer and is environmentally friendly, and a vinyl chloride-based resin composition including the same. The plasticizer composition according to the present invention is not harmful to the human body because it does not include phthalate, and is able to reduce carbon emissions during a production process by including a recycled raw material. Further, the plasticizer composition of the present invention is excellent in both migration resistance and volatility resistance, and excellent in physical properties such as weather resistance to ultraviolet rays, a gelling rate, plasticization efficiency, etc., thereby being used as a general-purpose plasticizer.

Abstract: A method of decreasing aldehyde content in a polymeric material uses a compound (Z) which includes a moiety of formula (I): wherein each R1 and R2 independently represents a substituent, n1 is 0 to 4 and n2 is 0 to 4; wherein X is selected from the group comprising C, N, P, O and S atoms; and each of the two benzene rings includes a moiety formula (A) and a moiety formula (B): NH wherein the carbon atom of moiety (A) and the nitrogen atom of moiety (B) are separated by at least one and not more than two atoms.

Abstract: Organodisulfides blends having heterogenous moieties of carbon chain length from 8 to 18 are useful stabilizers for polymer compositions, wherein the tendency of a polymer to degrade when exposed to environmental conditions such as heat, light and oxygen may be ameliorated by the incorporation of the heterogeneous organodisulfide blend.

Abstract: The present disclosure relates to an isocyanate composition having excellent storage stability and an optical lens produced from such an isocyanate composition.

Abstract: Provided is an encapsulant film composition; including an ethylene/alpha-olefin copolymer and a crosslinking aid comprises a compound represented by Formula 1 below, an encapsulant film, and a solar cell module thereof. When an encapsulant film is produced using the encapsulant film composition, the immersing time of an ethylene/alpha-olefin copolymer is reduced so that the economic viability of a process of producing an encapsulant film can be improved. In addition, the encapsulant film composition produced exhibits excellent crosslinking degree. wherein R1 to R6 are described herein.

Abstract: High mobility group box protein 1 (HMGB1) is a nuclear protein released during cell damage and stimulates inflammatory and proliferative pathways in the surviving neighboring cells. HMGB1 contains three cysteine residues (e.g., 23/45/106) involved in the extracellular HMGB1 oligomerization and receptor binding. The peptide compositions described herein shield the aforementioned cysteine residues, which block HMGB1 from binding to DNA and, thus, reduce apoptotic signaling within a cell. Furthermore, methods of treating inflammatory disease (e.g., PAH) by administering said peptide composition are described herein.

Abstract: Provided is a method for producing composite oxide particles consisting of spherical particles having a predetermined average primary particle diameter within a range of 230 to 350 nm, wherein 90% or more of a total number of the spherical particles have primary particle diameters within a range of the predetermined average primary particle diameter plus or minus 5%, each particle constituting the spherical particles is a core-shell particle comprising a silica-based composite oxide particle and a silica layer that coats a surface of the silica-based composite oxide particle, and the silica layer has an average thickness of 3 to 15 nm, and a production method thereof. Additionally, a curable composition comprising such composite oxide particles is provided.

Abstract: The present disclosure discloses a flame-retardant PC film, comprising 75-92 parts by weight of at least one PC resin and 10-20 parts by weight of a flame retardant, wherein the flame retardant includes at least one phosphorus-containing flame retardant and at least one inorganic silicon flame retardant.

Abstract: A rubber composition is described that includes a rubber component in combination with a high surface area silica, and a polysulfide polymer having the following formula: HS(C2H4—O—CH2—O—C2H4SS)xC2H4—O—CH2—O—C2H4SH wherein x is 5 to 100. The rubber composition can be included in the tread of pneumatic tires to provide tires that exhibit improved mechanical and performance properties.

Abstract: Embodiments of the present disclosure are directed to rubber formulations, wherein the formulations include a statistical copolymer. The statistical copolymer includes a polymerized, crosslinkable e reaction product derived from a conjugated diene monomer and vinylbenzocyclobutane. The rubber formulation is substantially free of traditional rubber curatives.