Abstract: The present invention provides a polyamide resin composition that can give a molded article having a low hydrogen gas permeability coefficient and exhibiting a favorable nominal tensile strain at break at a low temperature (?40° C.), and pertains to a polyamide resin composition including polyamide resins (A), an impact modifier (B) and an inorganic compound (C), wherein the polyamide resins (A) include an aliphatic homopolyamide resin (A-1) and an aliphatic copolyamide resin (A-2), and the content of the inorganic compound (C) with respect to 100 parts by weight of the impact modifier (B) is 1.60 to 3.00 parts by weight.

Abstract: A polyamide resin composition comprising a polyamide resin (A), glass (C), and optionally a styrene polymer (B1) and a modified PPE (B2), wherein the total amount of A, B1, and B2 and the amount of C are, respectively, 40 to 95% by weight and 60 to 5% by weight, based on the weight of the composition, wherein the amount of A and the total amount of B1 and B2 are, respectively, 50 to 100% by weight and 50 to 0% by weight, based on 100% by weight of the whole of A, B1, and B2, wherein when C contains glass containing no boron oxide (C1), the amount of C1 is 60 to 5% by weight, based on the weight of the composition, wherein when C does not contain C1, A is a polyoxamide resin, or the amount of A and the total amount of B1 and B2 are defined.

Abstract: Provided is a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, and a black dye, wherein the polyamide resin composition contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition, contains the carbon black in an amount of 0.01 to 0.55% by weight, based on the weight of the composition, and contains the black dye in an amount of 0.01 to 1.0% by weight, based on the weight of the composition.

Abstract: Provided is a polyamide resin composition comprising a polyamide resin, a PAN carbon fiber, carbon black, and a black dye, wherein the polyamide resin composition contains the PAN carbon fiber in an amount of 7.5 to 25% by weight, based on the weight of the composition, contains the carbon black in an amount of 0.01 to 0.55% by weight, based on the weight of the composition, and contains the black dye in an amount of 0.01 to 1.0% by weight, based on the weight of the composition.

Abstract: A polyamide resin composition comprising a polyamide resin (A), glass (C), and optionally a styrene polymer (B1) and a modified PPE (B2), wherein the total amount of A, B1, and B2 and the amount of C are, respectively, 40 to 95% by weight and 60 to 5% by weight, based on the weight of the composition, wherein the amount of A and the total amount of B1 and B2 are, respectively, 50 to 100% by weight and 50 to 0% by weight, based on 100% by weight of the whole of A, B1, and B2, wherein when C contains glass containing no boron oxide (C1), the amount of C1 is 60 to 5% by weight, based on the weight of the composition, wherein when C does not contain C1, A is a polyoxamide resin, or the amount of A and the total amount of B1 and B2 are defined,

Abstract: A hydrogen tank liner material comprises a polyamide resin composition which comprises (A) a polyamide resin at 85-40 wt %, (B) a copolyamide at 5-30 wt % and (C) an impact-resistant material at 10-30 wt % with respect to the total weight of the polyamide resin composition. Preferably, the (B) copolyamide is PA6/66 and the (C) impact-resistant material is an acid-modified ethylene/?-olefin-based copolymer. A hydrogen tank liner material with excellent gas barrier properties and superior impact resistance even at low temperatures is obtained.

Abstract: To provide a material for sliding components, which is excellent in low warping property, high limiting PV value, low dynamic friction coefficient and wear resistance. This material is suitably used particularly for components such as gears, pulleys, cams and bearings of automobiles, and machines, and cable housing for supporting a cable (e.g., feed cable, signal cable, optical cable). The material for sliding components comprises a thermoplastic resin composition containing (A) a thermoplastic resin and (B) a glass fiber having a noncircular cross-section with the ratio of the long diameter to the short diameter in the cross-section perpendicular to the length direction being from 1.2 to 10.

Abstract: A laser welding material and laser welding method which can satisfactorily weld resin members of different resin materials that have no or little adhesive property is provided and includes a set of resin materials constituting a first resin member, a second resin member and a third resin member in which the first resin member and the second resin member are different materials and the first resin member does not absorb laser light and which is used for laser-welding the three members by overlapping the third resin member with the first and second resin members and irradiating laser light to the three members from the first resin member side, and a layer welding method.

Abstract: A polyamide resin/rubber-reinforced styrene-based resin composition, particularly, a polyamide resin/ABS resin composition, excellent in the balance between impact strength and fluidity as well as in the heat resistance, chemical resistance and paintability, as well as a shaped article thereof, are provided. The resin composition comprises 100 parts by weight of a thermoplastic resin comprising (A) from 79.5 to 20 parts by weight of a polyamide resin, (B) from 20 to 79.5 parts by weight of a polymer obtained by grafting an aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a specific rubber-like polymer, (C) from 0.

Abstract: A hydrogen tank liner material comprises a polyamide resin composition which comprises (A) a polyamide resin at 85-40 wt %, (B) a copolyamide at 5-30 wt % and (C) an impact-resistant material at 10-30 wt % with respect to the total weight of the polyamide resin composition. Preferably, the (B) copolyamide is PA6/66 and the (C) impact-resistant material is an acid-modified ethylene/?-olefin-based copolymer. A hydrogen tank liner material with excellent gas barrier properties and superior impact resistance even at low temperatures is obtained.

Abstract: To provide a material for laser welding, which is excellent in laser transmittance, as well as low warpage and enables a shaped article to be obtained with high weld strength and uniform weld strength by laser welding. This material for laser welding comprises a thermoplastic resin composition containing (A) a thermoplastic resin and (B) a glass fiber having a non-circular cross-section with the ratio between the long diameter and the short diameter in the cross-section at right angles to the length direction being from 1.2 to 10.

Abstract: A laser welding method, for resin members, comprising using a kit.

Abstract: A circuit board with reliable electrical connections is provided. An insulated board material, having connections for connecting a layer to another layer, includes a reinforcing member. A thickness of the entire insulated board material is at least equal to and not more than 1.5 times of a thickness of the reinforcing member.

Abstract: A laser welding material and laser welding method which can satisfactorily weld resin members of different resin materials that have no or little adhesive property is provided and includes a set of resin materials constituting a first resin member, a second resin member and a third resin member in which the first resin member and the second resin member are different materials and the first resin member does not absorb laser light and which is used for laser-welding the three members by overlapping the third resin member with the first and second resin members and irradiating laser light to the three members from the first resin member side, and a layer welding method.

Abstract: A material kit for laser welding, which is used for laser-welding a first resin member non-absorptive to laser light and a second resin member absorptive to laser light by overlapping the two resin members and irradiating laser light from the first resin member side, the material kit comprising a first resin material for forming a first resin member and a second resin material for forming a second resin member, wherein the first resin material comprises a first resin and a crystal nucleating agent or a resin having a crystallization accelerating effect on the first resin, and the second resin material comprises a second resin and an additive absorptive to laser light; and a laser welding method, for resin members, comprising using the kit.

Abstract: A polyamide resin/rubber-reinforced styrene-based resin composition, particularly, a polyamide resin/ABS resin composition, excellent in the balance between impact strength and fluidity as well as in the heat resistance, chemical resistance and paintability, as well as a shaped article thereof, are provided. The resin composition comprises 100 parts by weight of a thermoplastic resin comprising (A) from 79.5 to 20 parts by weight of a polyamide resin, (B) from 20 to 79.5 parts by weight of a polymer obtained by grafting an aromatic vinyl-based monomer and a vinyl cyanide-based monomer to a specific rubber-like polymer, (C) from 0.

Abstract: A circuit board ensuring electrical connections is provided. An insulated board material, having connecting means for connecting a layer to another layer, includes a reinforcing member. A thickness of the entire insulated board material is at least equal to or not more than 1.5 times of a thickness of the reinforcing member.

Abstract: A set of resin compositions comprising a first resin composition for forming a first resin member which is laser light-weakly-absorbing and a second resin composition for forming a second resin member which is laser light-absorbing, whereby said first and second resin members can be superposed and, from the first resin member side to the interface between the first and second resin members, laser light is irradiated to weld them together. According to the invention, irradiation of laser light produces heat as energy is absorbed by the laser light weakly-absorbing first resin member, such that the temperature of the bonding surface with the second resin member increases to some extent. The second resin member in this state is heated by absorption of laser light and melts, while the first resin member also readily melts, and therefore the resin members at the joint become sufficiently interlocked to form a strong joint.