Abstract: The present invention provides a polyamide resin composition including (A) a polyamide resin, (B) an alkali metal compound and/or an alkaline earth metal compound, and (C) one or more compounds selected from following (C1) to (C4): (C1) a salt of one or more metal elements selected from the group consisting of groups 3, 4, 11, 13, and 14 of periodic table, (C2) at least one organic heat stabilizer selected from the group consisting of a hindered phenol compound, a hindered amine compound, and an organic phosphorus compound, and (C3) a crystalline thermoplastic resin having a lower melting point than that of the component (A) and/or an amorphous thermoplastic resin having a lower Vicat softening point than that of the component (A), and (C4) an acid.

Abstract: A polyoxymethylene resin molded article comprising 100 parts by mass of a polyoxymethylene resin (A) and 0.1 to 5 parts by mass of a sliding agent (B), wherein four or more dispersion domains of the sliding agent (B) are present in a region of 1000 nm in depth from a surface of the molded article and 12000 nm in width, and the dispersion domain has an average minor diameter of 300 nm or less, and an average major diameter of 600 nm or more and 5000 nm or less.

Abstract: Provided is a resin composition that is excellent in balance between tenacity and rigidity, suppresses variation in physical properties, and is further excellent in moldability. The disclosure provides a resin composition at least comprising 100 parts by mass of polyacetal resin (A), 0.01 to 1 part by mass of fatty acid metal salt (B), and 0.1 to 3 parts by mass of zinc oxide (C), wherein a total content of the polyacetal resin (A), the fatty acid metal salt (B), and the zinc oxide (C) is 98.0% by mass or more.

Abstract: Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm % and the surface sulfur concentration is less than 0.1 atm %.

Abstract: A polyoxymethylene resin molded article comprising 100 parts by mass of a polyoxymethylene resin (A) and 0.1 to 5 parts by mass of a sliding agent (B), wherein four or more dispersion domains of the sliding agent (B) are present in a region of 1000 nm in depth from a surface of the molded article and 12000 nm in width, and the dispersion domain has an average minor diameter of 300 nm or less, and an average major diameter of 600 nm or more and 5000 nm or less.

Abstract: The present invention provides a molded article comprising a polyamide resin composition, wherein (the average concentration of alkali metal and/or alkaline earth metal elements in a region within a depth of 3 ?m from the surface of the molded article)/(the average concentration of alkali metal and/or alkaline earth metal elements in a region except for the region within a depth of 3 ?m from the surface of the molded article)>2.

Abstract: A polyacetal resin composition has very excellent durability, which includes 100 parts by mass of a polyacetal resin (A) and 10 parts by mass or more and 100 parts by mass or less of a glass filler (B), wherein when a polyacetal resin molded article (C) made of the polyacetal resin composition is washed with a mixed solvent of hexafluoroisopropanol and chloroform in 1/1 (volume ratio), the remaining residue (D) has an ignition loss of 0.2% by weight or more.

Abstract: A polyamide resin composition includes: (A) a polyamide resin; (B) an aluminic acid metal salt; and (C) at least one or more compounds selected from the group consisting of the following (C1) to (C3): (C1) a salt of one or more metal elements selected from the group consisting of groups 3, 4, 11, 13, and 14 of the periodic table, (C2) at least one organic heat stabilizer selected from the group consisting of a hindered phenol compound, a hindered amine compound, and an organic phosphorus compound, and (C3) a crystalline thermoplastic resin having a lower melting point than that of the component (A) and/or an amorphous thermoplastic resin having a lower Vicat softening point than that of the component (A), and wherein the content of the component (B) is 0.03 to 20 parts by mass with respect to 100 parts by mass in total of the component (A) and the component (C3).

Abstract: The present invention provides a polyamide resin composition including (A) a polyamide resin, (B) an alkali metal compound and/or an alkaline earth metal compound, and (C) one or more compounds selected from following (C1) to (C4): (C1) a salt of one or more metal elements selected from the group consisting of groups 3, 4, 11, 13, and 14 of periodic table, (C2) at least one organic heat stabilizer selected from the group consisting of a hindered phenol compound, a hindered amine compound, and an organic phosphorus compound, and (C3) a crystalline thermoplastic resin having a lower melting point than that of the component (A) and/or an amorphous thermoplastic resin having a lower Vicat softening point than that of the component (A), and (C4) an acid.

Abstract: The polyamide resin composition of the present invention comprises a polyamide resin, (B) 0.5 to 400 mmol of a phosphorus compound in terms of a phosphorus element concentration, and (C) 0.5 to 400 mmol of a metal element, per kg of the polyamide resin, wherein the content of an apatite-based compound is 0.3 parts by mass or smaller based on 100 parts by mass of the polyamide resin, and the viscosity number [VN] of the polyamide resin is 160 mL/g or higher.

Abstract: The present invention provides a polyamide resin composition comprising (A) a polyamide resin, (B) an aluminic acid metal salt, and (C) an organic acid, wherein the content of the aluminic acid metal salt (B) is larger than 0.6 parts by mass based on 100 parts by mass of the polyamide resin (A).

Abstract: A polyamide resin composition includes: (A) a polyamide resin; (B) an aluminic acid metal salt; and (C) at least one or more compounds selected from the group consisting of the following (C1) to (C3): (C1) a salt of one or more metal elements selected from the group consisting of groups 3, 4, 11, 13, and 14 of the periodic table, (C2) at least one organic heat stabilizer selected from the group consisting of a hindered phenol compound, a hindered amine compound, and an organic phosphorus compound, and (C3) a crystalline thermoplastic resin having a lower melting point than that of the component (A) and/or an amorphous thermoplastic resin having a lower Vicat softening point than that of the component (A), and wherein the content of the component (B) is 0.03 to 20 parts by mass with respect to 100 parts by mass in total of the component (A) and the component (C3).

Abstract: The present invention provides a molded article comprising a polyamide resin composition, wherein (the average concentration of alkali metal and/or alkaline earth metal elements in a region within a depth of 3 ?m from the surface of the molded article)/(the average concentration of alkali metal and/or alkaline earth metal elements in a region except for the region within a depth of 3 ?m from the surface of the molded article)>2.

Abstract: The present invention relates to a polyamide obtainable by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a substituent branched from a main chain.

Abstract: [Problem to be Solved] To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating. [Solution] This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60? equivalents/g.

Abstract: Provided is a surface-treated carbon nanotube having few surface fractures, not reducing the molecular weight of the resin to be mixed and having excellent extrudability. In the surface-treated carbon nanotube, the thermal reduction amount at 600° C. in a nitrogen atmosphere is 0.2 to 40%, the surface oxygen concentration measured by X-ray photoelectron spectroscopy (XPS) is 1.5 to 40 atm % and the surface sulfur concentration is less than 0.1 atm %.

Abstract: A polyamide comprising (a) a unit comprising adipic acid and hexamethylenediamine and (b) a unit comprising isophthalic acid and hexamethylenediamine, wherein a ratio of the isophthalic acid component to the total carboxylic acid component in the polyamide is 0.05?(x)?0.5 and a range of blocking ratio (Y) is ?0.3?(Y)?0.8. Also provided are compositions comprising 30 to 95% by mass of the above polyamide and 5 to 70% by mass of an inorganic filler.

Abstract: The present invention relates to a polyamide obtainable by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a substituent branched from a main chain.

Abstract: The present invention relates to a polyamide obtainable by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a substituent branched from a main chain.

Abstract: [Problem to be Solved] A main object of the present invention is to provide a polyamide and a polyamide composition capable of rendering good surface appearance stability and outstanding impact resistance properties to a molded article even when molded under rigorous molding conditions. [Solution] The present invention is (A) a polyamide comprising (a) a unit comprising adipic acid and hexamethylenediamine and (b) a unit comprising isophthalic acid and hexamethylenediamine, wherein a ratio of the isophthalic acid component to the total carboxylic acid component in the polyamide is 0.05?(x)?0.5 and a range of blocking ratio (Y) is ?0.3?(Y)?0.8. Also, the polyamide composition of the present invention contains 30 to 95% by mass of the above polyamide and 5 to 70% by mass of (B) an inorganic filler.