Abstract: An object of the present invention is to provide a liquid crystal polyester resin composition in which satisfactory fluidity and excellent mechanical properties as well as flame retardancy are obtained, and the generation of particles is suppressed, and a molded article composed of the liquid crystal polyester resin composition. The present invention relates to a liquid crystal polyester resin composition containing: 100 parts by mass of a liquid crystal polyester (A) including repeating units represented by the formulas (I) to (III), wherein Ar1 and Ar2 each represent one or more divalent aromatic groups, and p, q and r each represent a composition ratio (mol %) of each repeating unit in the liquid crystal polyester (A) and satisfy the following conditions, 35?p?90, 5?q?30, and 5?r?30; and 1 to 150 parts by mass of a fibrous titanium oxide (C).

Abstract: A liquid crystal polyester resin composition includes a liquid crystal polyester (A) including repeating units represented by formulae (I) to (III), a liquid crystal polyester (B) including repeating units represented by formulae (IV) and (V), and surface-treated glass fibers (C) including an epoxy resin on the surface thereof, wherein the mass ratio of (A) to (B) [A/B] is from 90/10 to 45/55, the content of (C) is from 10 to 130 parts by mass relative to 100 parts by mass of the total amount of (A) and (B), and as measured in a bending test using a strip-like molded article (length: 127 mm, width: 12.7 mm, thickness: 0.5 mm), the bending strength and the bending elastic modulus of the liquid crystal polyester resin composition are equal to or more than 330 MPa and equal to or more than 20 GPa, respectively.

Abstract: An object of the present invention is to provide a liquid crystal polyester resin having low-temperature processability and improved mechanical properties. The present invention relates to a liquid crystal polyester resin comprising specific repeating units and having a crystal melting temperature of less than 210° C. as measured with a differential scanning calorimeter.

Abstract: An object of the present invention is to provide a method for producing high-purity 2,6-NDA having a small alkali metal content. The present invention relates to a method for producing a high-purity 2,6-naphthalene dicarboxylic acid, comprising a purification step of washing a crude 2,6-naphthalene dicarboxylic acid having a specific surface area of 2 m2/g or more in the presence of an aqueous medium under a temperature condition of 90° C. or more and less than 200° C.

Abstract: A resin does not need to incorporate a fluorescent substance and exhibits fluorescence itself. Also, a liquid crystal polymer is provided which does not contain a bleeding out substance such as hydrophobic silica and barium sulfate and which has an effect of suppressing fibrillation in the resin itself. A liquid crystal polymer includes a copolymer of a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or anhydride thereof and a reactive derivative thereof and a polymerizable monomer (B).

Abstract: An object of the present invention is to provide a liquid crystal polyester resin composition in which satisfactory fluidity and excellent mechanical properties as well as flame retardancy are obtained, and the generation of particles is suppressed, and a molded article composed of the liquid crystal polyester resin composition. The present invention relates to a liquid crystal polyester resin composition containing: 100 parts by mass of a liquid crystal polyester (A) including repeating units represented by the formulas (I) to (III), wherein Ar1 and Ar2 each represent one or more divalent aromatic groups, and p, q and r each represent a composition ratio (mol %) of each repeating unit in the liquid crystal polyester (A) and satisfy the following conditions, 35?p?90, 5?q?30, and 5?r?30; and 1 to 150 parts by mass of a fibrous titanium oxide (C).

Abstract: An object of the present invention is to provide a method for producing high-purity 2,6-NDA having a small alkali metal content. The present invention relates to a method for producing a high-purity 2,6-naphthalene dicarboxylic acid, comprising a purification step of washing a crude 2,6-naphthalene dicarboxylic acid having a specific surface area of 2 m2/g or more in the presence of an aqueous medium under a temperature condition of 90° C. or more and less than 200° C.

Abstract: A liquid crystal polyester resin composition includes a liquid crystal polyester (A) including repeating units represented by formulae (I) to (III), a liquid crystal polyester (B) including repeating units represented by formulae (IV) and (V), and surface-treated glass fibers (C) including an epoxy resin on the surface thereof, wherein the mass ratio of (A) to (B) [A/B] is from 90/10 to 45/55, the content of (C) is from 10 to 130 parts by mass relative to 100 parts by mass of the total amount of (A) and (B), and as measured in a bending test using a strip-like molded article (length: 127 mm, width: 12.7 mm, thickness: 0.5mm), the bending strength and the bending elastic modulus of the liquid crystal polyester resin composition are equal to or more than 330 MPa and equal to or more than 20 GPa, respectively.

Abstract: An object of the present invention is to provide a liquid crystal polyester resin having low-temperature processability and improved mechanical properties. The present invention relates to a liquid crystal polyester resin comprising specific repeating units and having a crystal melting temperature of less than 210° C. as measured with a differential scanning calorimeter.

Abstract: To provide a liquid crystal polymer composition whose fluidity during molding is improved without degrading the mechanical properties thereof. A liquid crystal polymer composition which contains 100 parts by weight of a liquid crystal polymer, 1 to 200 parts by weight of an inorganic filler and/or an organic filler, and 0.01 to 2 parts by weight of a melamine compound as a flow modifier.

Abstract: The present invention relates to a production process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of reacting a 4-hydroxy-benzoic acid short chain ester with an aliphatic alcohol in the presence of a metal catalyst. The present invention also relates to a purification process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of adding an acid aqueous solution to a crude composition including the 4-hydroxy-benzoic acid long chain ester, separating the crude composition to an organic phase and a water phase and extracting the organic phase.

Abstract: An object of the invention is to provide a resin which does not need to incorporate a fluorescent substance and exhibits fluorescence itself. Another object of the invention is to provide a liquid crystal polymer which does not contain a bleeding out substance such as hydrophobic silica and barium sulfate and which has an effect of suppressing fibrillation in the resin itself. The invention relates to a liquid crystal polymer comprising a copolymer of a polymerizable monomer (A) selected from the group consisting of pyromellitic acid or anhydride thereof and a reactive derivative thereof and an other polymerizable monomer (B).

Abstract: To provide a liquid crystal polymer composition whose fluidity during molding is improved without degrading the mechanical properties thereof. A liquid crystal polymer composition which contains 100 parts by weight of a liquid crystal polymer, 1 to 200 parts by weight of an inorganic filler and/or an organic filler, and 0.01 to 2 parts by weight of a melamine compound as a flow modifier.

Abstract: The present invention provides a liquid antiseptic composition including (A) parahydroxybenzoic acid ester and (B) water-miscible organic solvent, wherein the (A) parahydroxybenzoic acid ester are two or more esters selected from the group consisting of methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parahydroxybenzoate, isopropyl parahydroxybenzoate, butyl parahydroxybenzoate, isobutyl parahydroxybenzoate and benzyl parahydroxybenzoate; the (B) water-miscible organic solvent contains (B-1) at least one organic solvent selected from the group consisting of propylene glycol, butylene glycol, ethanol and polyethylene glycol, and (B-2) 2-phenoxyethanol; and a weight ratio of (A) and (B) is 1:1 to 1:3, and a weight ratio of (B-1) and (B-2) is 1:1 to 1:3.

Abstract: The present invention relates to a production process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of reacting a 4-hydroxy-benzoic acid short chain ester with an aliphatic alcohol in the presence of a metal catalyst. The present invention also relates to a purification process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of adding an acid aqueous solution to a crude composition including the 4-hydroxy-benzoic acid long chain ester, separating the crude composition to an organic phase and a water phase and extracting the organic phase.

Abstract: The present invention provides a liquid antiseptic composition including (A) parahydroxybenzoic acid ester and (B) water-miscible organic solvent, wherein the (A) parahydroxybenzoic acid ester are two or more esters selected from the group consisting of methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parahydroxybenzoate, isopropyl parahydroxybenzoate, butyl parahydroxybenzoate, isobutyl parahydroxybenzoate and benzyl parahydroxybenzoate; the (B) water-miscible organic solvent contains (B-1) at least one organic solvent selected from the group consisting of propylene glycol, butylene glycol, ethanol and polyethylene glycol, and (B-2) 2-phenoxyethanol; and a weight ratio of (A) and (B) is 1:1 to 1:3, and a weight ratio of (B-1) and (B-2) is 1:1 to 1:3.

Abstract: The present invention provides a liver function-improving agent or an inhibitor of fat accumulation in the liver, which contains maltitol as an active ingredient. The present invention also provides a medicament for the prevention and/or treatment of hepatic dysfunction, which contains maltitol as an active ingredient.

Abstract: A solid germicidal composition containing a compound of the formula (I), a carbonate compound and an organic acid with a solubility in water at 20° C. of 0.25 to 35%: wherein, R1 represents a saturated linear alkyl group having 1 to 3 carbon atoms, R2 represents a saturated linear alkyl group having 8 to 12 carbon atoms, X? represents a halogen ion and Y represents a saturated linear alkylene group having 8 to 12 carbon atoms is disclosed. A method for disinfecting an object, which comprises contacting an aqueous solution of the composition with the object, is also disclosed. The solid germicidal composition is effective against various microorganisms and hardly causes development of resistance to the composition itself in microorganisms even when the composition is continually or continuously used.

Abstract: The present invention provides a liquid-crystalline polymer composition comprising: 100 parts by weight of a liquid-crystalline polymer and 1-150 parts by weight of the total weight of talc particles (A) and talc particles (B), wherein talc particles (A) have an aspect ratio of 3.1-5.0 and a median particle diameter of 5-100 ?m; and talc particles (B) have an aspect ratio of 1.0-3.0 and a median particle diameter of 5-100 ?m; wherein the weight ratio of talc particles (A)/talc particles (B) is from 1/9 to 9/1, and wherein the liquid-crystalline polymer composition according to the present invention exhibits improved molding flowability without impairing mechanical properties.

Abstract: The present invention provides a process for preparing 2,5-dihydroxyterephthalic acid which comprises reacting a dialkali metal salt of hydroquinone with carbon dioxide in a reaction medium in the presence of a potassium salt represented by formula (I): CnH2n+1COOK??(I) wherein n is an integer of 1-17. According to the process for preparing 2,5-dihydroxyterephthalic acid of the present invention, 2,5-dihydroxyterephthalic acid can be produced both safely and at a low cost under industrially advantageous conditions. Further, the process according to the present invention causes less damage to reaction equipment and the like.