Abstract: A curable resin composition comprises a (meth)acrylic polyol, a hydrogenated polyolefin-based polyol, and a polyisocyanate. The (meth)acrylic polyol includes a polymer having a hydroxyl value of 5 mg KOH/g or more and 150 mg KOH/g or less, a glass transition temperature of ?70° C. or more and ?40° C. or less, and a number average molecular weight of 500 or more and 20000 or less, and which is liquid at 25° C. The hydrogenated polyolefin-based polyol has an iodine value of 15 or less. An electrical component (1) comprises a sealing member (2) including a cured product of the curable resin composition.

Abstract: A corrosion-resistant member (10) provided with: a base material (16) made of aluminum or an aluminum alloy; a diamond-like carbon film (18) formed on a surface of the base material (16) and made of amorphous carbon (a-C) or hydrogenated amorphous carbon (a-C:H); and an epoxy resin-containing coating material (20), which at least fills open pores (24) of the diamond-like carbon film (18).

Abstract: A curable composition comprises a blocked isocyanate compound (PhI) having a plurality of isocyanate groups each protected by phenols (Ph), and an epoxy compound (E) having a plurality of epoxy groups. The curable composition does not contain an isocyanate scavenger which may react with the isocyanate groups nor an epoxy scavenger which may react with the epoxy groups.

Abstract: Base materials of a butt welded joint with a welded portion have a carbon concentration of 0.1 mass % or greater and 0.35 mass % of less. The welded portion is formed by heating by keyhole welding and then reheating by heat conduction welding, and the welded portion has a melted and solidified portion by the keyhole welding, a reheated solidified portion by the heat conduction welding, and a remelted and solidified portion. A width W0 and a depth d0 of the melted and solidified portion and a width W1 and a depth d1 of the remelted and solidified portion have the following relationships: 0.46W0?W1; and 0.14d0?d1?0.73d0.

Abstract: A curable resin composition comprises a (meth)acrylic polyol, a castor oil-based polyol, and a polyisocyanate. The (meth)acrylic polyol includes a polymer having a hydroxyl value of 5 mg KOH/g or more and 150 mg KOH/g or less, a glass transition temperature of ?70° C. or more and ?40° C. or less, and a number average molecular weight of 500 or more and 20,000 or less, which is liquid at 25° C. An electrical component (1) comprises a sealing material (2) including a cured product of the curable resin composition.

Abstract: A curable resin composition comprises a (meth)acrylic polyol, a hydrogenated polyolefin-based polyol, and a polyisocyanate. The (meth)acrylic polyol includes a polymer having a hydroxyl value of 5 mg KOH/g or more and 150 mg KOH/g or less, a glass transition temperature of ?70° C. or more and ?40° C. or less, and a number average molecular weight of 500 or more and 20000 or less, and which is liquid at 25° C. The hydrogenated polyolefin-based polyol has an iodine value of 15 or less. An electrical component (1) comprises a sealing member (2) including a cured product of the curable resin composition.

Abstract: A curable resin composition comprises a (meth)acrylic polyol, a polycarbonate-based polyol, and a polyisocyanate. The (meth)acrylic polyol includes a polymer having a hydroxyl value of 5 mg KOH/g or more and 150 mg KOH/g or less, a glass transition temperature of ?70° C. or more and ?40° C. or less, and a number average molecular weight of 500 or more and 20000 or less, and which is liquid at 25° C. An electrical component (1) comprises a sealing material (2) including a cured product of the curable resin composition.

Abstract: A curable polyurethane type resin composition which is applicable for a sealing material for an electrical device used in a vehicle, enhances a hydrolysis resistance of a cured substance and can suppress a decrease in physical properties in high temperature and high moisture environments. The curable polyurethane type resin composition contains castor oil-type polyol, polyisocyanate, and epoxidized acrylic polymer. The electrical device has electrical components covered with a sealing material consisting of a cured substance of the curable polyurethane-type resin composition.

Abstract: A corrosion-resistant member (10) provided with: a base material (16) made of aluminum or an aluminum alloy; a diamond-like carbon film (18) formed on a surface of the base material (16) and made of amorphous carbon (a-C) or hydrogenated amorphous carbon (a-C:H); and an epoxy resin-containing coating material (20), which at least fills open pores (24) of the diamond-like carbon film (18).

Abstract: A piston rod and a rod cover which constitute this hydraulic cylinder are configured from aluminum or an aluminum alloy. An alumite coating film is formed on at least a part of the inner wall surface of the rod cover that constitutes a rod insertion hole, and a diamond-like carbon coating film is formed on the outer wall surface of the piston rod, said diamond-like carbon coating film being in sliding contact with the alumite coating film.

Abstract: A resin-sealed component includes a part to be sealed, a first sealing member covering at least a part of the part to be sealed, and a second sealing member sealing a surface of the first sealing member. The first sealing member and the second sealing member are made of thermosetting resins. The second sealing member is made of the thermosetting resin having a gelation time longer than that of the first sealing member.

Abstract: An electric actuator such that a nut threadedly engaged with a sliding screw shaft is displaced along an axial direction under the operation of a motor, the sliding screw shaft being made of a light metal or light metal alloy. A diamond-like carbon film is formed on at least either a portion of screw threads of the nut that is located at least within three threads from a starting end in the axial direction, or screw threads of the sliding screw shaft.

Abstract: A curable polyurethane type resin composition which is applicable for a sealing material for an electrical device used in a vehicle, enhances a hydrolysis resistance of a cured substance and can suppress a decrease in physical properties in high temperature and high moisture environments. The curable polyurethane type resin composition contains castor oil-type polyol, polyisocyanate, and epoxidized acrylic polymer. The electrical device has electrical components covered with a sealing material consisting of a cured substance of the curable polyurethane-type resin composition.

Abstract: An electronic device includes a first molded product integrated with an electronic component, and a second molded product secondarily molded outside of the first molded product. The first molded product includes a thermosetting resin, and a first additive contained in the thermosetting resin, and the second molded product includes a thermoplastic resin, and a second additive contained in the thermoplastic resin and having a reactive group that chemically bonds with the first additive. At an interface between the first molded product and the second molded product, the first additive and the second additive are joined to each other by one or more joint actions selected from covalent bonding, ionic bonding, hydrogen bonding, intermolecular forces, dispersion force, and diffusion. As a result, the adhesion between both the molded products can be firmly secured through the molding technique such as the transfer molding method or the compression molding method.

Abstract: A piston rod and a rod cover which constitute this hydraulic cylinder are configured from aluminum or an aluminum alloy. An alumite coating film is formed on at least a part of the inner wall surface of the rod cover that constitutes a rod insertion hole, and a diamond-like carbon coating film is formed on the outer wall surface of the piston rod, said diamond-like carbon coating film being in sliding contact with the alumite coating film.

Abstract: An electric actuator such that a nut threadedly engaged with a sliding screw shaft is displaced along an axial direction under the operation of a motor, the sliding screw shaft being made of a light metal or light metal alloy. A diamond-like carbon film is formed on at least either a portion of screw threads of the nut that is located at least within three threads from a starting end in the axial direction, or screw threads of the sliding screw shaft.

Abstract: A resin additive for a polyphenylene sulfide includes a diamine compound expressed by a following general chemical formula (1), in which A is an oxygen atom or a sulfur atom, X is a hydrogen atom, an alkyl group with a carbon number of six or less, or an aryl group, and n is a natural number of 1 to 10. A polyphenylene sulfide resin composition includes the resin additive and a polyphenylene sulfide resin. An electronic device includes a molded product of the polyphenylene sulfide resin composition.

Abstract: An electrical component has an electronic part, a primer layer covering at least partially the electronic part, and a sealing resin covering at least partially the electronic part and the primer layer. The primer layer contains a polyimide polymer having the structure represented by the following chemical formula (1), and the sealing resin contains an epoxy-based resin and/or maleimide-based resin. (In the formula (1), R1 is a tetravalent alicyclic hydrocarbon group, tetravalent aliphatic hydrocarbon group, or tetravalent aromatic hydrocarbon group, and may contain O or/and S. In the formula (1), R2 is H or 1-3C alkyl group. In the formula (1), n1 is an integer from 1 to 10 (inclusive), and m is an integer from 1 to 100000 (inclusive).

Abstract: A hardening resin composition includes a base resin and a hardening agent. The base resin contains a maleimide compound having two or more maleimide groups in one molecule, and the hardening agent contains a diamine compound expressed by a general chemical formula (1), in which A is an oxygen atom or a sulfur atom, X is a hydrogen atom, an alkyl group with a carbon number of six or less, or an aryl group, and n is a natural number of 1 to 10.

Abstract: A curable resin composition includes a main agent, an amine-based curing agent, and a phenol-based curing agent. The main agent includes at least one of a maleimide compound and an epoxy compound. The amine-based curing agent is made of aromatic polyamine. The phenol-based curing agent is made of phenols that has a phenolic OH equivalent of equal to or less than 90 and has a softening point or a melting point of equal to or lower than 100° C.