Abstract: A method of preparing a catalyst comprising a) contacting a non-aqueous solvent, a carboxylic acid, and a chromium-containing compound to form an acidic mixture; b) contacting a titanium-containing compound with the acidic mixture to form a titanium treatment solution; c) contacting a pre-formed silica-support comprising from about 0.1 wt. % to about 20 wt. % water with the titanium treatment solution to form a pre-catalyst; and d) thermally treating the pre-catalyst to form the catalyst. A method of preparing a catalyst comprising a) contacting a non-aqueous solvent and a carboxylic acid to form an acidic mixture; b) contacting a titanium-containing compound with the acidic mixture to form a titanium treatment solution; c) contacting a pre-formed chrominated silica-support comprising from about 0.1 wt. % to about 20 wt. % water with the titanium treatment solution to form a pre-catalyst; and d) thermally treating the pre-catalyst to form the catalyst.

Abstract: The purpose of the present invention is to provide an electroconductive resin composition that has excellent electroconductivity and high mechanical strength. The electroconductive resin composition according to the present invention comprises 75-99 parts by mass of a thermoplastic resin (A), 1-25 parts by mass of a carbon material (B), and more than 1 part by mass but not more than 10 parts by mass, per 100 parts by mass of the total amount of the thermoplastic resin (A) and the carbon material (B), of a modified polyolefin wax (C), wherein the carbon material (B) is a granular carbon material having an average grain diameter of 500 nm or less or a fibrous carbon material having an average fiber length of 1000 ?m or less.

Abstract: The present disclosure provides a supported hybrid catalyst which facilitates the preparation of polyolefins having improved bubble stability and exhibiting excellent processability for a blown film while maintaining high transparent haze and improved melt strength, and a method for preparing the same.

Abstract: A system and method for charging a chromium-based catalyst to a mix vessel; introducing a reducing agent through an entrance arrangement into the mix vessel, and agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.

Abstract: Extruded films comprising ethylene vinyl alcohol copolymer (EVOH) with substantially no blow holes therein, are formed by using a pellet feed to the extruder wherein 90-100 wt. % of the pellets pass through an ASTM size 5 sieve and 0-10 wt. % of the pellets are finer than a number 10 mesh (ASTM Sieve size). Uniform feeding to and through the extruder with a lack of bridging of the EVOH pellet feed have been observed.

Abstract: Disclosed are a system for controlling an ethylene vinyl acetate (EVA) copolymerization process and a method of controlling the same. The system for controlling the EVA copolymerization process may include a database for analysis configured to store analysis data obtained by matching processing conditions with measured data for first EVAs produced under the processing conditions, a vinyl acetate (VA) content estimation unit configured to estimate a VA content with respect to second EVA using the analysis data, a molecular weight distribution estimation unit configured to estimate a molecular weight distribution of the second EVA using the VA content estimated in the VA content estimation unit and processing factors corresponding thereto, and a recovery system blockage estimation unit configured to estimate a recovery system blockage phenomenon using the VA content estimated in the VA content estimation unit and the molecular weight distribution estimated in the molecular weight distribution estimation unit.

Abstract: A stable, aqueous composition containing a crosslinked, nonionic, amphiphilic polymer capable of forming a yield stress fluid in the presence of a surfactant is disclosed. The yield stress fluid is capable of suspending insoluble materials in the form of particulates and/or droplets requiring suspension or stabilization.

Abstract: Disclosed is a resin comprising a structural unit derived from a compound represented by formula (I?) and a structural unit having an acid-labile group: wherein R1 and R2 each independently represent an alkyl group which may have a halogen atom, a hydrogen atom or a halogen atom, Ar represents an aromatic hydrocarbon group which may have a substituent, L1 represents a group represented by formula (X1-1), etc., L11, L13, L15 and L17 each independently represent an alkanediyl group, L12, L14, L16 and L18 each independently represent —O—, —CO—, CO—O—, —O—CO— or —O—CO—O—, and * and ** are bonds, and ** represents a bond to an iodine atom.

Abstract: This invention relates to a process for the preparation of a polar-functionalized resin composition comprising the steps of (A) contacting a polymer backbone with a reactive moiety to produce a polar-functionalized resin composition wherein the polymer backbone is derived from a feed comprising less than or equal to about 35 wt % components derived from piperylene; less than or equal to about 10 wt % components derived from amylene; less than or equal to about 10 wt % components derived from isoprene; less than or equal to about 55 wt % unreactive paraffins; and C9 homopolymer or copolymer resins, in the presence of a Friedel-Crafts or Lewis acid catalyst; and (B) recovering a polar-functionalized resin composition.

Abstract: The present invention relates to a modifier represented by Formula 1, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.

Abstract: A crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A); a carboxyl group-containing acrylic rubber (B); and a polyamine-based crosslinking agent (C), where a ratio of a weight of the carboxyl group-containing nitrile rubber (A) to a weight of the carboxyl group-containing acrylic rubber (B) is from 5:95 to 95:5. The carboxyl group-containing nitrile rubber (A) includes 5 to 60% by weight of ?,?-ethylenically unsaturated nitrile monomer units, and ?,?-ethylenically unsaturated monocarboxylic acid ester monomer units. The carboxyl group-containing nitrile rubber (A) has an iodine value of 120 or less.

Abstract: A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising: (a) from 90 mol-% to 99.9 mol-%, preferably 95 mol-% to 99.5 mol-% of repeating units according to Formula (1) (b) from 0.01 mol-% to 10 mol-%, preferably to 5 mol-%, more preferably to 3 mol-% of crosslinking or branching units, wherein the crosslinking or branching units result from the incorporation of a monomer comprising at least two olefinically unsaturated double bonds; characterised in that the components (i) and (ii) are polymerised by radical precipitation polymerisation in a polar solvent.

Abstract: A heterophasic propylene polymerization material, including a propylene polymer component (I) and an ethylene-?-olefin copolymer component (II), the heterophasic propylene polymerization material satisfying features (i) to (v): (i) the heterophasic propylene polymerization material contains a xylene-soluble content by 20 wt % or more; (ii) xylene-soluble content in the heterophasic propylene polymerization material has a limiting viscosity [?]CXS not less than 5 dL/g; (iii) a melt flow rate of the propylene polymer component (I) is 70 g/10 min or more; (iv) MFR of the heterophasic propylene polymerization material is not less than 5 g/10 min; and (v) the number of gels of 100 ?m or more in diameter on a sheet for counting gels, including the heterophasic propylene polymerization material, is 1000 or less per 100 cm2 of the sheet.

Abstract: The present invention relates to a polymer composition, an optical laminate and a display device, and can provide a polymer composition capable of forming a pressure-sensitive adhesive layer which has excellent workability, durability and dimensional stability and is capable of effectively alleviating the bending phenomenon of the display, through a polymer capable of forming a physically cross-linked structure together with a chemically cross-linked structure. In addition, the present invention can provide an optical laminate comprising a cross-linked product of the polymer composition and a display device comprising the same.

Abstract: A polyester prepared by free radical polymerization of an unsaturated polyester prepolymer, wherein the polymerization occurs primarily by reaction of the unsaturation of said prepolymer is disclosed. Coatings comprising the same are also disclosed, as are substrates coated at least in part with such coating.

Abstract: Process for the preparation of aqueous polyurethane dispersions, containing from 20 to 50% by weight of an anionic polyurethane having a mean particle size from 1 to 15 micron and providing films with durable low gloss aspect.

Abstract: Described herein are processes for producing moldings comprising oxazolidinone groups, where polyisocyanate (a) is mixed with at least one organic compound (b) having two or more epoxide groups, at least one catalyst (c) for the isocyanate/epoxide reaction, and optionally auxiliary and additive materials (d) to form a reaction mixture, which is introduced into or applied to a mold and reacted to give moldings including oxazolidinone groups, where the catalyst (c) for the isocyanate/epoxide reaction includes a compound of the general formula [M(R1)(R2)(R3)(R4)]+ [X In]?, where M is a nitrogen atom or a phosphorus atom, R1, R2, R3 and R4 are an organic radical, X is fluorine, chlorine, bromine or iodine, I is iodine, and n stands for rational numbers from 0.1 to 10.

Abstract: The disclosed technology relates to an article, such as a hose, tube, sheet, film, or filament made from a crystalline thermoplastic polyurethane composition, wherein the crystalline thermoplastic polyurethane composition comprises the reaction product of a polyisocyanate component, a polyester polyol component, optionally a chain extender component, and optionally a catalyst. The article is produced by melt or extrusion processes.

Abstract: Provided is a solution for forming a surface protective resin member. The solution contains: an acrylic resin selected from: (i) an acrylic resin having a hydroxyl value of 40 to 280 and having a structure in which a silane coupling agent (a) having a functional group reactive with a hydroxyl group is bonded to a side chain; or (ii) an acrylic resin having a hydroxyl value of 40 to 280 and having a structure in which a silane coupling agent (b) having a vinyl group is polymerized as a monomer; and a polyol that has hydroxyl groups that are linked by a chain having 6 or more carbon atoms.

Abstract: A process comprising, consisting of, or consisting essentially of: forming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.

Abstract: A method for producing a shaped body, containing: producing the shaped body from a composition by a powder-based layer construction process, wherein the composition contains a thermoplastic polyurethane, obtained by reacting a polyisocyanate composition and a polyol composition, the thermoplastic polyurethane is solid at least in a temperature region below 50° C. and has end groups selected from the group consisting of first end groups and second end groups, wherein the first end groups are optionally eliminated at a first temperature, and the second end groups are optionally eliminated at a second temperature, to form reactive groups on the thermoplastic polyurethane that optionally enter into a reaction with functional groups of the thermoplastic polyurethane or functional groups of a further component of the composition, and wherein the first temperature and the second temperature are each greater than or equal to 60° C.

Abstract: High purity epoxide compounds methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.

Abstract: A process of forming a flame retardant monomer includes forming a hydroxyl-functionalized caprolactone molecule, and reacting the hydroxyl-functionalized with a phosphorus-containing flame retardant molecule to form a flame retardant-functionalized caprolactone monomer. A flame retardant monomer includes at least one moiety derived from a hydroxyl-functionalized caprolactone molecule and at least one phosphorus-containing flame retardant moiety. A flame retardant polymer includes at least two flame retardant monomer repeat units, each flame retardant monomer repeat unit including at least one moiety derived from a hydroxyl-functionalized caprolactone molecule and at least one phosphorus-containing flame retardant moiety.

Abstract: Techniques regarding the synthesis of polyesters and/or polycarbonates through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by a urea anion catalyst and/or a thiourea catalyst are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence an organocatalyst comprising a urea anion.

Abstract: The disclosure provides a method of preparing a polymer scaffold including admixing a biotinylated reagent and a polymer to form a biotinylated polymer, subjecting the biotinylated polymer to conditions sufficient to form the polymer scaffold and optionally admixing the polymer scaffold with a streptavidin-modified biomolecule to form a biomolecule-modified polymer scaffold. The disclosure further provides a method of preparing a polymer scaffold including admixing a first click chemistry reagent and a poly(lactic-co-glycolic acid) (PLGA) polymer to form a modified PLGA polymer, subjecting the modified PLGA polymer to conditions sufficient to form the polymer scaffold, and optionally admixing the polymer scaffold with a biomolecule modified to include a second click chemistry reagent that selectively reacts with the first click chemistry reagent, to form a biomolecule-modified polymer scaffold.

Abstract: Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise polymerizing, via a ring-opening polymerization within a flow reactor, a cyclic monomer in the presence of one or more anionic organocatalysts.

Abstract: Techniques regarding the synthesis of one or more polymers through one or more ring-opening polymerizations conducted within a flow reactor and facilitated by one or more anionic catalysts are provided. For example, one or more embodiments can comprise a method, which can comprise functionalizing, via a post-polymerization reaction within a flow reactor, a chemical compound by covalently bonding a trimethylsilyl protected thiol to a pendent functional group of the chemical compound in a presence of a catalyst. The pendent functional group can comprise a perfluoroaryl group and a methylene group.

Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a): 15?wM1??(F1a) wherein wM1 represents the average content of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined by using a polycarbonate as a conversion reference of from 56,000 or more to 200,000 or less among polycarbonate-polyorganosiloxane copolymers obtained through the separation of the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography.

Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a): 15?wM1??(F1a) wherein wM1 represents the average content of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined by using a polycarbonate as a conversion reference of from 56,000 or more to 200,000 or less among polycarbonate-polyorganosiloxane copolymers obtained through the separation of the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography.

Abstract: The present invention relates to a method for purifying polyalkylene carbonate. More specifically, a method for purifying polyalkylene carbonate is provided, which uses a multistage extraction column having the number of stages of at least 10 stages, using water for effectively removing by-products such as alkylene carbonate generated in a process for producing polyalkylene carbonate resin, thereby controlling the content of by-products to a certain level or less through a continuous operation, particularly, the extraction is performed at room temperature, thereby easily removing by-products in the resin without a high temperature volatilization.

Abstract: Disclosed are processes and systems for removing water and salt from a polyether polyol that employs a combination of at least atmospheric distillation, filtration, and vacuum distillation.

Abstract: Process for providing purified polyether block copolymers comprising polyoxyethylene (PEO) and polyoxypropylene (PPO) moieties wherein the purified product is obtained by an ultrafiltration step of a solution of the polyether block copolymers and wherein the block copolymers are depleted in lower molecular impurities.

Abstract: A fluorine-containing ether compound of the present invention is represented by the following General Formula (1). (In the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end.) [Chem.

Abstract: To provide a hydrophilic polymer derivative having a novel linker technique which is able to from a hydrophilic polymer pro-drug of a drug containing an amino group or the like in order to overcome the restrictions of conventional hydrophilic polymer pro-drugs.

Abstract: A two-step curable thermally conductive silicone composition includes a silicone component, thermally conductive particles, and a curing component. The silicone composition includes (A) 100 parts by weight of polyorganosiloxane, (B) 100 to 2500 parts by weight of thermally conducive particles with respect to the component A, (C) a platinum group metal catalyst as a curing catalyst for the polyorganosiloxane, and (D) 0.01 to 5 parts by weight of organic peroxide with respect to the component A. The silicone composition has been subjected to primary curing at a primary curing temperature and is capable of undergoing secondary curing at a temperature higher than the primary curing temperature. The silicone composition after the primary curing has a thermal conductivity of 0.2 to 17 W/m·K and an Asker C hardness of 5 to 80.

Abstract: A manufacturing method of amphiphilic macromolecules is provided. The method includes: reacting the first acrylic acid with N,N?-carbonyldiimidazole to obtain a modified acrylic acid derivative; and reacting the modified acrylic acid derivative with the siloxane derivative to obtain amphiphilic macromolecules. Wherein, the terminal of the first acrylic acid has a hydroxyl group. Wherein, the siloxane derivative is a hydroxyl-terminated, acrylamide-terminated, epoxy-terminated or amine-terminated polysiloxane molecule.

Abstract: The present invention relates to disintegratable mesoporous silica materials, a method for producing the same, and uses thereof.

Abstract: A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

Abstract: Ethylsilicate polymers and a method of making, specifically ethylsilicate polymer binders with reduced levels of regulated volatile organic compounds (VOCs) for use in the coatings industry and casting industry, and more specifically to stable, fast cure ethylsilicate polymer binders with low levels of regulated VOCs.

Abstract: A method of preparing polyamide (PA) powders includes the steps of: heating a composition including PA granules, a nucleating agent and an organic solvent under normal pressure to T1 not lower than melting point (Tm) of PA granules and maintaining at T1 to dissolve PA granules; cooling the heated composition to T2 to nucleate the dissolved PA granules and maintaining at T2 to crystallize, where 15° C.?Tm?T2?33° C.; cooling the crystallization product to precipitate PA; and washing the precipitated product to remove the organic solvent. The weight ratio of PA granules to the nucleating agent is 100:1, and the weight ratio of PA granules to the organic solvent ranges from 0.11 to saturation solubility of PA granules in the organic solvent.

Abstract: The present invention relates to a process for producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P) and at least one additive (A). The semicrystalline polyamide (P) and the at least one additive (A) are initially compounded with one another in an extruder and subsequently introduced into a solvent (SV) in which the at least one semicrystalline polyamide (P) then crystallizes to obtain the polyamide powder (PP). The present invention further relates to the thus obtainable polyamide powder (PP) and to the use of the polyamide powder (PP) as sintering powder (SP) and also to a process for producing a shaped body by selective laser sintering of a polyamide powder (PP).

Abstract: A polymeric composition is disclosed which includes from about 40 to about 99 weight percent of a first polymer and from about 1 to about 60 weight percent of polybutylene(succinate-co-adipate) (“PBSA”). Preferably the first polymer is selected from the group consisting of polyvinyl chloride, polylactic acid, polyhydroxy alkanoates, and mixtures thereof. A method for making the composition is also disclosed.

Abstract: The present invention relates to a new process for improving runnability and dimensional stability when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a retention polymer.

Abstract: A porous film sealing method and porous film sealing material are provided to seal an object to be sealed that has a porous film. The porous film sealing method of the present invention is characterized by including a first step that supplies a first material to a treatment vessel in which is stored an object to be treated that has a porous film, and the first material includes a non-aromatic fluorocarbon having 6 or more carbon atoms.

Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an 12 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.

Abstract: The objective of the present invention is to provide a prepreg and a fiber reinforced composite material using this prepreg. This prepreg has good handleability, is suitable for producing a reinforced composite material in a short-time and without using an autoclave, and is capable of yielding a fiber reinforced composite material exhibiting excellent impact resistance, wherein the occurrence of voids has been suppressed. To attain the objective, this prepreg comprises a reinforced fiber [A] that is layered and partially impregnated with an epoxy resin composition containing an epoxy resin [B] and a hardener [C], the impregnation rate ? being 30 to 95%. In this prepreg, a thermoplastic resin [D] insoluble in the epoxy resin [B] is distributed unevenly over a surface on one side of the prepreg, and a portion not impregnated with the epoxy resin composition is localized in the layer of the reinforced fiber [A] on the side where the thermoplastic resin [D] is distributed unevenly.

Abstract: An object of the present invention is to provide an epoxy resin composition capable of providing a carbon fiber-reinforced composite material that is excellent in moldability, heat resistance, and mechanical properties such as tensile strength and compression strength, and a prepreg. The present invention provides an epoxy resin composition containing at least components [A] to [D] shown below: [A]: an epoxy resin having a xylene group; [B]: a glycidyl amine epoxy resin having three or more glycidyl groups in a molecule; [C]: a thermoplastic resin; and [D]: an aromatic polyamine, the epoxy resin composition containing 10 to 80 parts by mass of the component [A] and 20 to 90 parts by mass of the component [B] based on 100 parts by mass in total of epoxy resins, and also 1 to 25 parts by mass of the component [C] based on 100 parts by mass in total of epoxy resins.

Abstract: A prepreg including: a component (A); a component (B); and a component (C), in which the component (A) is a reinforced fiber substrate, the component (B) is an epoxy resin composition, the component (C) is a component (c1) or a component (c2), the component (c1) includes polyamide particles and thermosetting polyimide particles, and the component (c2) includes spherical polyamide particles having a melting point of 140° C. to 175° C.

Abstract: Methods and materials are described for preparing organic-inorganic hybrid gel compositions where a sulfur-containing cross-linking agent covalently links the organic and inorganic components. The gel compositions are further dried to provide porous gel compositions and aerogels. The mechanical and thermal properties of the dried gel compositions are also disclosed.

Abstract: This pressure-sensitive elastomer porous body is a cured product of an elastomer emulsion, which is obtained via an emulsion composition including, as a continuous phase, a liquid rubber material which is cured to form an elastomer, wherein a conductive agent is contained in an amount of 2.7-3.5 wt % with respect to the total amount of the emulsion composition, and the electric resistance value (?) rises as the compression ratio C (%) increases.