Abstract: A plasticizer composition includes 2-ethylhexyl(2-hydroxyethyl) terephthalate, di(n-butyl) terephthalate, (n-butyl)(2-ethylhexyl) terephthalate, and di(2-ethylhexyl) terephthalate, wherein the content of the 2-ethylhexyl(2-hydroxyethyl) terephthalate is 20 wt % or less, based on the total plasticizer composition, and when the plasticizer composition is applied to a resin, mechanical properties, migration resistance, and loss properties may be improved.

Abstract: A plasticizer composition includes 2-ethylhexyl(2-hydroxyethyl) terephthalate, di(2-ethylhexyl) isophthalate, and di(2-ethylhexyl) terephthalate, wherein the content of the 2-ethylhexyl(2-hydroxyethyl) terephthalate is 20 wt % or less based on the total plasticizer composition, and when the plasticizer composition is applied to a resin, mechanical properties, migration resistance, and volatile loss properties may be improved.

Abstract: The present invention is characterized by propane tricarboxylate wherein an alkyl group is derived from an isomer mixture of hexyl alcohol and benzyl alcohol, and when the propane tricarboxylate is applied to a resin, excellent migration resistance, volatile loss, and stress resistance as well as high plasticization efficiency may be obtained.

Abstract: The present invention is characterized by propane tricarboxylate, wherein an alkyl group is derived from an isomer mixture of hexyl alcohol, and when the propane tricarboxylate is applied to a resin, excellent tensile properties, elongation properties, migration resistance, volatile loss, and stress resistance as well as high plasticization efficiency may be obtained.

Abstract: The present invention is characterized by aconitate wherein an alkyl group is derived from an isomer mixture of hexyl alcohol, and when the propane tricarboxylate is applied to a resin, excellent migration resistance, volatile loss, and stress resistance as well as high plasticization efficiency may be obtained.

Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) terephthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.

Abstract: The present disclosure is characterized in comprising an isophthalate-based composition and a citrate-based composition, wherein the isophthalate-based composition comprises di(2-ethylhexyl) isophthalate, hexyl(2-ethylhexyl) isophthalate and dihexyl isophthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the isophthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.

Abstract: An adhesive resin and an adhesive composition for an optical member including the same is provided. The adhesive resin includes an acrylic copolymer formed by polymerizing a monomer mixture including a monomer represented by [Formula 1], a (meth)acrylic monomer having a cross-linkable functional group, and an alkyl (meth)acrylate-based monomer.

Abstract: The present invention relates to a triester-based plasticizer composition including a product derived from the esterification of a carboxylic acid composition having a hexanoic acid isomer mixture and benzoic acid, and a trihydric alcohol. If the plasticizer composition is applied to a resin, migration resistance and volatile loss may be maintained at equal levels, and mechanical properties, absorption rate, stress migration and plasticization efficiency may be markedly improved in contrast to a conventional plasticizer.

Abstract: The present disclosure is characterized in comprising a terephthalate-based composition and a citrate-based composition, wherein the terephthalate-based composition comprises di(2-ethylhexyl) terephthalate, hexyl(2-ethylhexyl) terephthalate and dihexyl terephthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the terephthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.

Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) isophthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.

Abstract: The present invention relates to a method for continuously preparing an ester-based composition, the method increasing a preparation yield by optimizing pressure of a reactor as a process variable of each reactor of a reaction unit in which a plurality of reactors are connected in series.

Abstract: The present invention provides a method for preparing an ester-based material, the method including a step in which in a batch reactor, under a catalyst, at least one polycarboxylic acid selected from the group consisting of a terephthalic acid, a phthalic acid, an isophthalic acid, a cyclohexane dicarboxylic acid, a cyclohexane tricarboxylic acid, a trimellitic acid, and citric acid reacts with at least one mono-alcohol having 3 to 12 alkyl carbon atoms, wherein pressure in the reactor is configured such that the pressure at the early stage is 0.3 barg to 1.0 barg and the pressure at the latter stage is 0 barg to 0.5 barg, the pressure at the early stage being greater than the pressure at the latter stage, and the early and latter stages are divided based on any one of the time points when reaction conversion rate is 30% to 90%.

Abstract: The present invention relates to a method for preparing an ester-based composition, the method configured to sequentially operate a plurality of batch reactors and control pressure in each reactor, and the ester-based composition is semi-continuously prepared to have high productivity as well as stability of the batch reactors.

Abstract: The present invention relates to an acryl-based adhesive composition containing an acryl-based copolymer, which is formed by polymerization of a monomer mixture that contains a (meth)acryl-based monomer having an acetoacetyl group, a (meth)acryl-based monomer having a hydroxy group, a (meth)acrylate monomer having an alicyclic group, and an alkyl (meth) acrylate-based monomer; and a curing agent containing a metal chelate compound and an isocyanate compound, in which the acryl-based adhesive composition has a glass transition temperature of ?30° C. or greater after curing; and a polarizing plate and a display device prepared using the same.

Abstract: Disclosed is an apparatus for passenger recognition and boarding/alighting support of an autonomous vehicle. An apparatus for passenger recognition and boarding/alighting support of an autonomous vehicle according to an embodiment of the present disclosure may include a vehicle communicator configured to receive scheduled passenger information, a sensor configured to sense people outside the vehicle, and a vehicle controller configured to extract a passenger candidate group by analyzing the sensed people outside the vehicle, and calculate the number of reserved passengers using the extracted passenger candidate group and the received scheduled passenger information. One or more of an autonomous vehicle, a server, and a terminal of the present disclosure may be associated or combined with an artificial intelligence module, a drone (Unmanned Aerial Vehicle, UAV), a robot, an AR (Augmented Reality) device, a VR (Virtual Reality) device, a device associated with 5G network services, etc.

Abstract: An adhesive resin and an adhesive composition for an optical member including the same is provided. The adhesive resin includes an acrylic copolymer formed by polymerizing a monomer mixture including a monomer represented by [Formula 1], a (meth)acrylic monomer having a cross-linkable functional group, and an alkyl (meth)acrylate-based monomer.

Abstract: A display device includes a display panel including a plurality of pixels, a power management circuit configured to generate an analog driving voltage, a correction data memory configured to store a plurality of unevenness correction data sets respectively corresponding to a plurality of analog driving voltage ranges, a controller configured to determine, among the plurality of analog driving voltage ranges, a current analog driving voltage range to which the analog driving voltage output from the power management circuit belongs, to select an unevenness correction data set corresponding to the current analog driving voltage range from the plurality of unevenness correction data sets stored in the correction data memory, and to correct image data based on the selected unevenness correction data set, and a source driver configured to receive the corrected image data from the controller, and to provide the plurality of pixels with data voltages corresponding to the image data.

Abstract: The present invention relates to an acryl-based adhesive composition containing an acryl-based copolymer, which is formed by polymerization of a monomer mixture that contains a (meth)acryl-based monomer having an acetoacetyl group, a (meth)acryl-based monomer having a hydroxy group, a (meth)acrylate monomer having an alicyclic group, and an alkyl (meth) acrylate-based monomer; and a curing agent containing a metal chelate compound and an isocyanate compound, in which the acryl-based adhesive composition has a glass transition temperature of ?30° C. or greater after curing; and a polarizing plate and a display device prepared using the same.

Abstract: A scroll compressor includes a fixed scroll including a fixed mirror-like surface and a fixed wrap that is extended from the fixed mirror-like surface, formed in a hybrid curve, and includes a thick portion thicker than other portions; an orbiting scroll including an orbiting mirror-like surface and an orbiting wrap extended from the orbiting mirror-like surface and formed in a hybrid curve; and a rotating shaft configured to rotate the orbiting scroll, wherein the orbiting scroll revolves relative to the fixed scroll. A center of a curve of a center portion of the fixed wrap is located at a position offset by a predetermined distance in a direction of reducing a thickness of the thick portion of the fixed wrap from a center of the fixed mirror-like surface, and a center of a curve of a center portion of the orbiting wrap is offset to correspond to the fixed wrap.