Abstract: The present invention relates to an organic light emitting device including: an anode; a cathode; and a light emitting light provided between the anode and the cathode, in which a first organic material layer including a composition which includes a compound of Chemical Formula 1 or a cured product thereof is included between the light emitting layer and the anode, and a second organic material layer including a composition which includes a copolymer of Chemical Formula 2 or a cured product thereof is included between the first organic material layer and the light emitting layer, Wherein all the variables are described herein.

Abstract: Provided is a compound of Chemical Formula 1: wherein: X is O or S; L is a direct bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar2 is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms; R1 to R8 are the same as or different from each other, and each independently is hydrogen, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; and m and n are each an integer of 0 to 7, and when m is 2 or greater, R7s are the same as or different from each other, and when n is 2 or greater, R8s are the same as or different from each other, and an organic light emitting device including the same.

Abstract: Provided is a composition for interfacially polymerizing polyamide including an amine compound and a chain-type-structured additive containing one or more amino groups and two or more hydroxyl groups, and a method for manufacturing a water treatment separation membrane, and a water treatment separation membrane using the same.

Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein X1 is CR1 or N, X2 is CR2 or N, X3 is CR3 or N, X4 is CR4 or N, Y1 is CR5 or N, Y2 is CR6 or N, Y3 is CR7 or N, Y4 is CR8 or N, Z1 is CR9 or N, Z2 is CR10 or N, Z3 is CR11 or N, and Z4 is CR12 or N, wherein X1 to X4, Y1 to Y4 and Z1 to Z4 are not N at the same time; and at least one of R1 to R12 is Chemical Formula 2: wherein A1 is O, S or Se; L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; at least one of Ar1 and Ar2 is a substituted or unsubstituted alkyl group, and the rest is a substituted or unsubstituted aryl or heteroaryl group; and the rest are the same as or different from each other, and each independently is hydrogen, deuterium, halogen, cyano, nitro, hydroxyl, carbonyl, ester, imide, amide, or a substituted or unsubstituted: alkyl, cycloalkyl, alkoxy, aryloxy, alkylthioxy, arylthioxy, alkylsulfoxy, arylsulfoxy, alkenyl, silyl, boron, amine, arylphosphine oxide, aryl, or heteroa

Abstract: Provided is a method for detecting defects of a separation membrane element, and an apparatus for detecting defects of a separation membrane element.

Abstract: A method for preparing an aldehyde including forming a reaction product including an aldehyde by reacting an olefin-based compound with a synthetic gas in a hydroformylation reactor in the presence of a hydroformylation catalyst; introducing the reaction product including the aldehyde to a vaporizer; separating low-boiling point components of the reaction product from an upper part of a vaporizer catch pot included in the vaporizer; separating high-boiling point components of the reaction product from a lower part of the vaporizer catch pot; and recirculating at least a portion of the low-boiling point components separated from an upper part of the vaporizer catch pot back to the vaporizer.

Abstract: In the present invention, only low-growth carbon nanotubes are selectively separated among solid particles discharged during a reaction and then re-input to a reactor, so that it is possible to improve the quality of a carbon nanotube product to be produced and the productivity of a carbon nanotube production process.

Abstract: Provided is a method of decomposing phenolic by-products, and more particularly, a method of decomposing phenolic by-products including: supplying a phenolic by-product stream to a decomposition device to perform thermal decomposition; separating an upper discharge stream including effective components and a lower discharge stream including materials having a high boiling point in the decomposition device; supplying the lower discharge stream from the decomposition device, a side discharge stream from the decomposition device, and a process water stream to a mixing device and mixing these streams; and supplying a discharge stream from the mixing device to a layer separation device to separate the discharge stream from the mixing device into an oil phase and an aqueous phase.

Abstract: The present disclosure relates to an adhesive composition for semiconductor circuit connection and an adhesive film containing the same. The adhesive composition for semiconductor circuit connection according to the present disclosure can exhibit excellent adhesive strength during thermal compression bonding of a semiconductor circuit, and minimize a warpage of wafer caused by stacking of semiconductor circuits.

Abstract: A cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same, and the compound used as a material of an organic material layer in the organic light emitting device and providing improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.

Abstract: A hydroformylation method including preparing an aldehyde by reacting a raw-C5 feed with a synthetic gas in the presence of a catalyst composition.

Abstract: The present specification relates to a compound represented by Chemical Formula 1, a composition for forming an optical film and an optical film comprising the same, and a display device comprising the optical film.

Abstract: Provided is a thermoplastic resin composition, including (a) 100 parts by weight of a thermoplastic resin including 80-100% by weight of a base resin and 0-20% by weight of a reinforcing resin; (b) 2-60 parts by weight of linear carbon fibers having an average diameter of 1-15 ?m; (c) 1-5 parts by weight of carbon nanofibrils having a BET specific surface area of 200-400 m2/g; (d) 1-15 parts by weight of carbon nanoplates; and (e) 1-25 parts by weight of metal powder, a method of preparing the thermoplastic resin composition, and an injection-molded article manufactured using the thermoplastic resin composition. The thermoplastic resin composition has excellent mechanical properties, e.g.

Abstract: Provided are a hybrid supported catalyst which includes two or more kinds of transition metal compounds having the following Chemical Formulas 1 and 2, thereby preparing a polyolefin, particularly, a high-density polyethylene having a molecular structure which is optimized to improve tensile strength of a chlorinated polyolefin compound, and a method of preparing a polyolefin using the same: wherein all the variables are described herein.

Abstract: Provided are a nitrogen-containing ring compound of the following Chemical Formula 1: and a color conversion film, a backlight unit and a display device including the same.

Abstract: The present disclosure relates to a hologram recording medium having one surface with a higher surface energy than a polymer resin layer containing at least one polymer selected from the group consisting of triacetyl cellulose, alicyclic olefin polymer and polyethylene terephthalate, a hologram recording medium wherein the surface energy of any one surface is 50 mN/m or more, and an optical element comprising the hologram medium.

Abstract: A method for preparing a positive electrode active material precursor includes preparing a metal aqueous solution including a nickel raw material, a cobalt raw material, and a manganese raw material (step 1); adding the metal aqueous solution, an ammonium cation complex forming agent, and a basic aqueous solution into a reactor, co-precipitating the mixture at pH 11 to less than pH 12 to form nuclei of first positive electrode active material precursor particles and growing the nuclei (step 2); adjusting input amount of the basic aqueous solution to increase the pH in the reactor to a range of 0.8 to 1.5 compared to that of step 2; and adjusting input amount of the basic aqueous solution to change the pH in the reactor to pH 11 to less than pH 12 (step 4). A positive electrode active material precursor prepared by the above preparation method has an improved packing density.

Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 45° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.

Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. An adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 60° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.

Abstract: A diffractive light guide plate and a display device including the same, the diffractive light guide plate including a light guide unit; a first diffractive optical element including a linear grating repeatedly formed at a predetermined pitch; and a second diffractive optical element disposed in a region distinct from a region where the first diffractive optical element is disposed and including a two-dimensional pattern provided in a region where a virtual first linear pattern repeatedly arranged at a predetermined pitch along a first direction and a virtual second linear pattern repeatedly arranged at a predetermined pitch along a second direction intersect each other, where a horizontal section of the two-dimensional pattern has an elliptical shape and an angle between the long axis of the elliptical shape and a direction perpendicular to an extension direction of the linear grating in the first diffractive optical element is less than 20°.