Abstract: An admixture for a hydraulic composition includes a polycondensation product P containing a copolymer prepared by polycondensation of a monomer mixture containing compounds A to C of the following Formulae (A) to (C); and a polycarboxylic acid-based polymer Q including a structural unit having an amino and an imino group, and/or a structural unit having an amino, imino, and amido group: (wherein R1 is a hydrogen atom, alkyl, or alkenyl group; A1O is a C2-4 alkylene oxide group; p is a number of 1 to 300; and X is a hydrogen atom, an alkyl, or acyl group; R2 is an alkyl or alkenyl group; A2O is a C2-4 alkylene oxide group; q is a number of 1 to 300; and Y1 is a phosphate ester group; and R3 is a hydrogen atom, carboxy, alkyl, alkenyl, phenyl, naphthyl, or heterocyclic group; and r is a number of 1 to 100).

Abstract: An admixture for a hydraulic composition includes a polycondensation product P containing a copolymer prepared by polycondensation of a monomer mixture containing compounds A to C of the following Formulae (A) to (C); and a polycarboxylic acid-based polymer Q including a structural unit having an amino and an imino group, and/or a structural unit having an amino, imino, and amido group: (wherein R1 is a hydrogen atom, alkyl, or alkenyl group; A1O is a C2-4 alkylene oxide group; p is a number of 1 to 300; and X is a hydrogen atom, an alkyl, or acyl group; R2 is an alkyl or alkenyl group; A2O is a C2-4 alkylene oxide group; q is a number of 1 to 300; and Y1 is a phosphate ester group; and R3 is a hydrogen atom, carboxy, alkyl, alkenyl, phenyl, naphthyl, or heterocyclic group; and r is a number of 1 to 100).

Abstract: A polycondensation product containing a phenolic copolymer useful for a hydraulic-composition dispersant that has stable dispersability and can obtain a prescribed fluidity, including a copolymer obtained by polycondensing a monomeric mixture including compounds A-D of formulas (A)-(D). A hydraulic-composition dispersant containing the product or copolymer. In the formulas, A1O, A2O, A3O, and A4O represent a C2-4 alkylene oxide group; m, n represent a number from 0 to 300 and m+n?1; p, q represent a number from 1 to 300; X represents a hydrogen atom, alkyl group, or C1-24 acyl group; R0, R1 represent a hydrogen atom, alkyl group or alkenyl group; Y1, Y2 represent a hydrogen atom, phosphoester group, or sulfate ester group; Y3 represents a phosphoester or a sulfate ester group; R2 represents a hydrogen atom, carboxyl group, C1-10 alkyl group, C2-10 alkenyl group, phenyl group, napthyl group, or heterocyclic group; r represents a number from 1-100.

Abstract: A polycondensation product containing a phenolic copolymer useful for a hydraulic-composition dispersant that has stable dispersability and can obtain a prescribed fluidity, including a copolymer obtained by polycondensing a monomeric mixture including compounds A-D of formulas (A)-(D). A hydraulic-composition dispersant containing the product or copolymer. In the formulas, A1O, A2O, A3O, and A4O represent a C2-4 alkylene oxide group; m, n represent a number from 0 to 300 and m+n?1; p, q represent a number from 1 to 300; X represents a hydrogen atom, alkyl group, or C1-24 acyl group; R0, R1 represent a hydrogen atom, alkyl group or alkenyl group; Y1, Y2 represent a hydrogen atom, phosphoester group, or sulfate ester group; Y3 represents a phosphoester or a sulfate ester group; R2 represents a hydrogen atom, carboxyl group, C1-10 alkyl group, C2-10 alkenyl group, phenyl group, napthyl group, or heterocyclic group; r represents a number from 1-100.

Abstract: There is provided a gypsum dispersant and a gypsum additive that improve the fluidity of gypsum slurry even if gypsum raw materials used are different in quality and that do not induce delay of curing of gypsum slurry. A gypsum dispersant, including: (A) a polycarboxylic acid polymer; and (B) a polymer obtained by a reaction of an alkylene diamine and/or a monoamine and an epihalohydrin as essential components.

Abstract: There is provided as an antistatic agent that preserves antistatic properties for a long period of time and that does not impair the appearance and transparency of a resin into which the antistatic agent is kneaded, and a resin composition containing the antistatic agent. The antistatic agent including a block copolymer; a thermoplastic resin composition including the antistatic agent; and a film or sheet including the composition.

Abstract: A cement dispersant that includes a copolymer resulting from a reaction of components (A) to (C), where: (A) is an ester compound obtained by adding 0 to 10 moles of C2-4 alkylene oxide to 1 mole of at least one compound of Formula (1) RO-(AO)n-H (where R is a C1-12 alkyl group, A is a C2-4 alkylene group, and n is an integer of 0 to 7) and subjecting the resulting adduct to a reaction with an ?,?-unsaturated carboxylic acid, in which the compound of Formula (1) contains not more than 5% by mass of the constituent compounds having n of 3 or less relative to the total mass of the compound of Formula (1); (B) is an ?,?-unsaturated carboxylic acid or a salt thereof; and (C) is another copolymerizable monomer, where appropriate, or a salt thereof.

Abstract: There is provided an antistatic agent that preserves its antistatic property for a long period of time and has the appearance and the transparency that are not impaired when kneaded into a resin, and a resin composition containing the antistatic agent. An antistatic agent including a block copolymer which is obtained from a reaction product of a polyolefin (a) having one end being acid-modified and a diol and/or a diamine (b) having a polyoxyalkylene chain, and in which a part or all of acid groups remaining in the reaction product is neutralized with an alkaline substance. A thermoplastic resin composition including the antistatic resin. A film or sheet including the thermoplastic resin composition.

Abstract: [PROBLEM] To provide a novel star polymer useful as resist materials with high sensitivity and high resolution, and a novel coupling agent for anionic polymerization for synthesizing the polymer. [MEANS FOR SOLVING THE PROBLEM] A star polymer comprising: a core part derived from a coupling agent for anionic polymerization composed of an acid-degradable compound having an organic group derived from a halide; and an arm part that is attached to the core part and composed of an acid-degradable polymer chain obtained by anionic polymerization; and the coupling agent for anionic polymerization.

Abstract: The present invention provides a method for producing a polybenzoxazole precursor having reduced contents of residual aprotic polar solvent and residual halogen without discharging a large amount of waste water during purification. The present invention specifically relates to a method for producing a polybenzoxazole precursor, which comprises synthesizing a polybenzoxazole precursor in an aprotic polar solvent, adding and mixing water and a water-insoluble solvent with the resulting polybenzoxazole precursor solution to still stand the solution, and then separating a water layer from the solution to reduce a content of impurities remaining in the polybenzoxazole precursor.

Abstract: There is provided as an antistatic agent that preserves antistatic properties for a long period of time and that does not impair the appearance and transparency of a resin into which the antistatic agent is kneaded, and a resin composition containing the antistatic agent. A block copolymer obtained from a reactant between (a) an acid-modified polyolefin and (b) an alkylene oxide adduct of amide alcohol of General Formula (1), part or all of residual acid groups in the reactant being neutralized by an alkaline substance: R1—CONH—R2—O-(A1O)n-H (1) (where R1 is a C1-21 linear or branched alkyl group or alkenyl group; R2 is a C1-4 linear or branched alkylene group; A1 is a C2-4 alkylene group; and n is an integer of 1 to 100); an antistatic agent including the block copolymer; a thermoplastic resin composition including the antistatic agent; and a film or sheet including the composition.

Abstract: The present invention provides a method for producing a polybenzoxazole precursor having reduced contents of residual aprotic polar solvent and residual halogen without discharging a large amount of waste water during purification. The present invention specifically relates to a method for producing a polybenzoxazole precursor, which comprises synthesizing a polybenzoxazole precursor in an aprotic polar solvent, adding and mixing water and a water-insoluble solvent with the resulting polybenzoxazole precursor solution to still stand the solution, and then separating a water layer from the solution to reduce a content of impurities remaining in the polybenzoxazole precursor.

Abstract: A cement dispersant that includes a copolymer resulting from a reaction of components (A) to (C), where: (A) is an ester compound obtained by adding 0 to 10 moles of C2-4 alkylene oxide to 1 mole of at least one compound of Formula (1) RO-(AO)n-H (where R is a C1-12 alkyl group, A is a C2-4 alkylene group, and n is an integer of 0 to 7) and subjecting the resulting adduct to a reaction with an ?,?-unsaturated carboxylic acid, in which the compound of Formula (1) contains not more than 5% by mass of the constituent compounds having n of 3 or less relative to the total mass of the compound of Formula (1); (B) is an ?,?-unsaturated carboxylic acid or a salt thereof; and (C) is another copolymerizable monomer, where appropriate, or a salt thereof.

Abstract: There is provided an antistatic agent that preserves its antistatic property for a long period of time and has the appearance and the transparency that are not impaired when kneaded into a resin, and a resin composition containing the antistatic agent. An antistatic agent including a block copolymer which is obtained from a reaction product of a polyolefin (a) having one end being acid-modified and a diol and/or a diamine (b) having a polyoxyalkylene chain, and in which a part or all of acid groups remaining in the reaction product is neutralized with an alkaline substance. A thermoplastic resin composition including the antistatic resin. A film or sheet including the thermoplastic resin composition.

Abstract: There is provided a pour point depressant for lubricants that has an effect of lowering pour points of both solvent refined base oils and high viscosity index base oils. A pour point depressant for lubricants comprising: a mixture of an alkyl (meth)acrylate polymer (A) that is composed of an alkyl(meth)acrylate containing alkyl groups having an average carbon number (CA) of 12.5 to 13.8, and an alkyl(meth)acrylate polymer (B) that is composed of an alkyl(meth)acrylate containing alkyl groups having an average carbon number (CB) of 13.9 to 15.5.

Abstract: There is provided a practically useful aqueous resin composition which enables to obtain a coating film that is satisfactory not only in corrosion resistance but also in coating adhesion when applied over a metal surface, specifically an aqueous resin composition which enables, in a form of a thin film having a thickness of about 0.1-5 ?m, to exhibit various properties practically required for surface treating agents for chromium-free surface-treated steel plates, namely excellent corrosion resistance, adhesion to steel plates, durability against alkaline degreasing agents or solvents which are used for removing a press oil used during press molding, adhesion to an overcoating material which is used for aesthetic purposes, mechanical stability and the like. The aqueous resin composition comprises 100 parts by mass of a copolymer of an ?,?-ethylenically unsaturated carboxylic acid and an olefin; and 0.

Abstract: There is provided a pour point depressant for lubricants that has an effect of lowering pour points of both solvent refined base oils and high viscosity index base oils. A pour point depressant for lubricants comprising: a mixture of an alkyl(meth)acrylate polymer (A) that is composed of an alkyl(meth)acrylate containing alkyl groups having an average carbon number (CA) of 12.5 to 13.8, and an alkyl(meth)acrylate polymer (B) that is composed of an alkyl(meth)acrylate containing alkyl groups having an average carbon number (CB) of 13.9 to 15.5.

Abstract: A biodegradable resin composition that exhibits excellent antistatic properties and antifogging properties while maintaining its molecular weight to such a degree as to provide practically satisfactory strength of a molded article molded even according to a kneading process.

Abstract: The invention provides a hair shape-controlling composition which has excellent applicability to hair, which causes less damage to permanent-waved hair or straightened hair, which can provide treated hair with an excellent texture as expected, and which does not impede a glossy appearance of treated hair. The hair shape-controlling composition including a first component containing a reducing agent and an alkaline agent, and a second component containing an oxidizing agent is provided by containing a specific hydroxy-ether-amine compound or a specific quaternary ammonium salt.

Abstract: [PROBLEM] To provide a novel star polymer useful as resist materials with high sensitivity and high resolution, and a novel coupling agent for anionic polymerization for synthesizing the polymer. [MEANS FOR SOLVING THE PROBLEM] A star polymer comprising: a core part derived from a coupling agent for anionic polymerization composed of an acid-degradable compound having an organic group derived from a halide; and an arm part that is attached to the core part and composed of an acid-degradable polymer chain obtained by anionic polymerization; and the coupling agent for anionic polymerization.