Abstract: The present invention pertains to: a polyol composition containing a polysaccharide alcohol, a polysaccharide alcohol-derived anhydrosugar alcohol, and an anhydrosugar alcohol polymer; and a polyurethane foam including same. More specifically, the present invention pertains to: a polyol composition containing a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) a polysaccharide alcohol-derived anhydrosugar alcohol, and e) at least one polymer of a) to d), wherein physical properties such as the number average molecular weight (Mn), polydispersity index (PDI), and average number of OH groups per molecule of the polyol composition satisfy certain levels, the polyol composition can contribute to the improvement of physical properties such as strength, elongation, and thermal insulation when used as a raw material for polyurethane, etc.

Abstract: The present invention relates to a composition for adhesion of dissimilar materials, and a preparation method therefor, and, more specifically, to a composition for adhesion of dissimilar materials, and a preparation method therefor, the composition comprising, in a specific weight ratio, a (meth)acrylic monomer, an epoxy resin, an epoxy curing accelerator, a thermal polymerization initiator, a polymerization inhibitor and a (meth)acrylic-modified polyurethane component, which comprises a hydrophilic (meth)acrylic-modified polyurethane and a lipophilic (meth)acrylic-modified polyurethane, and having excellent oil resistance while enabling high adhesiveness to be implemented between dissimilar materials at room temperature and high temperatures.

Abstract: A fusion protein of the present disclosure may induce the degradation of neurodegenerative disease-causing factors by binding to Tau and amyloid-beta proteins as the neurodegenerative disease-causing factors and activating autophagy. In addition, the fusion protein of the present disclosure penetrates a blood-brain barrier and is introduced into cells to be effectively delivered into nerve cells without a separate carrier, and has high stability and thus is expected to be used as a platform for the treatment of neurodegenerative diseases such as dementia and Alzheimer's disease.

Abstract: The polyester resin is described, which has repeating units derived from a diester component of a dicarboxylic acid; and a diol component. The diester of the aliphatic dicarboxylic acid includes a succinic acid diester, the diol component comprises 50 to 100 mol % of an anhydrosugar alcohol, based on 100 mol % of the total diol component, and the number average molecular weight (Mn) of the polyester resin is 10,000 g/mol or more. A method for preparing a polyester resin comprises (1) esterification or transesterification of a diester component of a dicarboxylic acid comprising a diester of an aliphatic dicarboxylic acid and a diester of an aromatic dicarboxylic acid and a diol component comprising an anhydrosugar alcohol; and (2) polycondensation of the reaction product obtained in step (1). The polyester resin has excellent heat resistance and mechanical properties and also has excellent biodegradability.

Abstract: The present invention relates to: a non-aqueous electrolyte composition for a lithium secondary battery, comprising an anhydrosugar alcohol derivative; and a lithium secondary battery including same and, more specifically, to: a non-aqueous electrolyte composition comprising a specific amount of an anhydrosugar alcohol derivative as an additive and being capable of providing a lithium secondary battery having an improved battery lifespan property and storage stability; and a lithium secondary battery including same.

Abstract: A novel bit storage circuit includes a first voltage supply line, a second voltage supply line, a bit line, a latch, a first switching transistor, and a blocking transistor. The latch includes an input and an output. The first switching transistor includes a first terminal, a second terminal, and a control terminal. The first switching transistor is operative to provide a conductive path and a non-conductive path between the bit line and the input of the latch responsive to a first control signal being asserted on the control terminal of the first switching transistor. The blocking transistor includes a control terminal and is operative to selectively provide a conductive path and a non-conductive path between the input of the latch and the second voltage supply line responsive to a second control signal. The blocking transistor facilitates the use of a single bit line.

Abstract: A polycarbonate diol is derived from ether diol of anhydrohexitol, a preparation method thereof, a polyurethane prepared therefrom, and adhesive, etc. including the same. More specifically, the polycarbonate diol includes repeated units derived from ether diol of anhydrohexitol; and carbonate diester; and optionally anhydrohexitol; and thereby showing better effect of improving color as compared with conventional polycarbonate diol, and being capable of providing polyurethane prepared therefrom with remarkably improved adhesion strength (T-peel strength or shear strength), preparation method thereof, polyurethane prepared therefrom, and adhesive, paint and coating agent including the same.

Abstract: The present invention relates to a (meth)acrylic-modified polyurethane composition and a preparation method therefor, and, more specifically, to: a (meth)acrylic-modified polyurethane composition and a preparation method therefor, the composition comprising a hydrophilic (meth)acrylic-modified polyurethane, which comprises a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct, and a lipophilic (meth)acrylic-modified polyurethane, which comprises a polymerization unit derived from a lipophilic polyol, and enabling provision of an adhesive composition having excellent eco-friendliness, adhesive strength (particularly, adhesive strength between dissimilar materials) and oil resistance, and a hygroscopic coating composition having excellent hygroscopicity so as to be suitable for condensation prevention.

Abstract: The present invention relates to a solid dispersion, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same and, more particularly, to a solid dispersion in which an inorganic or organic material-derived isotropic or anisotropic substance is used as a dispersoid and dispersed at room temperature in a solid-phase dispersion medium such as polyols and sugars, whereby the dispersion can be easily stored and used, reduce transportation cost, prevent or alleviate the aggregation or precipitation caused during the storage of products, with the results of working efficiency improvement and processing cost reduction, and, when applied to polyurethane, can increase strength and provide an improved strength, compared to conventional curing agent, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same.

Abstract: A telescopic column for an X-ray imaging apparatus includes a main column, a sub-column liftably arranged on one side of the main column, and a weight compensator arranged on an opposite side of the main column to compensate for a weight of the sub-column, wherein the weight compensator includes a cam formed such that a radius of winding of a wire therearoud changes according to a lifting height of the sub-column, and an elastic member configured to extend and contract according to rotation of the cam to provide elastic force to compensate for the weight of the sub-column.

Abstract: The present invention relates to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor and, more specifically, to a diisocynate compound having anhydrosugar alcohol core and a preparation method therefor, wherein the diisocynate compound is prepared through a reaction with a nitrile compound, a hydrogenation reaction, and an end-group substitution reaction while a recyclable, plant-based anhydrosugar alcohol or anhydrosugar alcohol-alkylene glycol is used as a raw material, and the diisocynate compound can be utilized in various fields, such as soft or hard polyurethane expanded foams, molded foams, coating, adhesives or glues, fibers, and polymer synthesis.

Abstract: The present invention relates to a polyol composition comprising anhydrosugar alcohols and an anhydrosugar alcohol polymer and, more specifically, to a polyol composition comprising a monoanhydrosugar alcohol, a dianhydrosugar alcohol, and a polymer of a monoanhydrosugar alcohol and/or a dianhydrosugar alcohol, the polyol composition being usable in various fields since the physical property conditions of the composition, such as number average molecular weight (Mn), polydispersity index (PDI) and hydroxyl value, satisfy specific levels, and, particularly, being capable of remarkably improving the physical properties of a polyurethane, such as tensile strength and elongation, when used as a polyurethane chain extender.

Abstract: The present invention relates to an epoxy resin with improved water resistance and a composition comprising same and, more specifically, to: an epoxy resin which is prepared by the reaction of epihalohydrin and a diol component including anhydrosugar alcohol and a diol other than the anhydrosugar alcohol in a specific content ratio, thus exhibiting excellent eco-friendliness and improved water resistance, and, when applied to a coating composition, exhibits an anti-fog effect and at the same time can provide a coating with improved durability against moisture; and a composition comprising the epoxy resin (preferably, an anti-fog coating composition).

Abstract: A telescopic column for an X-ray imaging apparatus includes a main column, a sub-column liftably arranged on one side of the main column, and a weight compensator arranged on an opposite side of the main column to compensate for a weight of the sub-column, wherein the weight compensator includes a cam formed such that a radius of winding of a wire therearoud changes according to a lifting height of the sub-column, and an elastic member configured to extend and contract according to rotation of the cam to provide elastic force to compensate for the weight of the sub-column.

Abstract: The present invention relates to a biodegradable copolymer polyester resin comprising an anhydrosugar alcohol and an anhydrosugar alcohol-alkylene glycol and a method for preparing same and, more specifically, to a polyester resin and a method for preparing same, wherein the polyester resin is excellent in color value and biodegradability as well as heat resistance and mechanical properties, by copolymerizing specific contents of a dicarboxyl component containing adipic acid or an ester thereof and a diol component containing an anhydrosugar alcohol and an anhydrosugar alcohol-alkylene glycol.

Abstract: A novel bit storage circuit includes a first voltage supply line, a second voltage supply line, a bit line, a latch, a first switching transistor, and a blocking transistor. The latch includes an input and an output. The first switching transistor includes a first terminal, a second terminal, and a control terminal. The first switching transistor is operative to provide a conductive path and a non-conductive path between the bit line and the input of the latch responsive to a first control signal being asserted on the control terminal of the first switching transistor. The blocking transistor includes a control terminal and is operative to selectively provide a conductive path and a non-conductive path between the input of the latch and the second voltage supply line responsive to a second control signal. The blocking transistor facilitates the use of a single bit line.

Abstract: The present disclosure relates to a lead halide perovskite (LHP) synthesis simulation method, and more particularly to an LHP synthesis simulation method that minimizes a change in wavelength of light emitted from an LHP material when exposed to light for a predetermined time.

Abstract: The present invention relates to an alkylene-oxide-added polyol composition, a polyurethane using same, and a hot-melt adhesive comprising same, and, more specifically, to an alkylene oxide-added polyol composition, a polyurethane using same, and a hot-melt adhesive comprising same, the composition being prepared by performing, in a specific content ratio, an addition reaction between an alkylene oxide and an anhydrosugar alcohol composition comprising a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) an anhydrosugar alcohol derived from a polysaccharide alcohol, and e) a polymer of at least one of a) to d), and thus can increase the amount of bio components, improves adhesive strength, and enables a polyurethane to be prepared at a cost lower than that of when using petroleum polyols and other biopolyols.

Abstract: The present invention pertains to: a polyol composition containing a polysaccharide alcohol, a polysaccharide alcohol-derived anhydrosugar alcohol, and an anhydrosugar alcohol polymer; and a polyurethane foam including same. More specifically, the present invention pertains to: a polyol composition containing a) a monoanhydrosugar alcohol, b) a dianhydrosugar alcohol, c) a polysaccharide alcohol, d) a polysaccharide alcohol-derived anhydrosugar alcohol, and e) at least one polymer of a) to d), wherein physical properties such as the number average molecular weight (Mn), polydispersity index (PDI), and average number of OH groups per molecule of the polyol composition satisfy certain levels, the polyol composition can contribute to the improvement of physical properties such as strength, elongation, and thermal insulation when used as a raw material for polyurethane, etc.

Abstract: The present invention relates to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof and, more specifically, to a hydrophilic acrylic-modified polyurethane and a method for preparing same, and a water-based paint composition using same and a manufacturing method thereof, the hydrophilic acrylic-modified polyurethane comprising: a polymerization unit derived from an anhydrosugar alcohol-alkylene oxide adduct; a polymerization unit derived from polyisocyanate; and a polymerization unit derived from hydroxyalkyl (meth)acrylate, and capable of providing a water-based paint composition in which eco-friendliness, adhesiveness (adhesion), crack resistance and water resistance are all improved.