Abstract: The present disclosure keeps a topcoat film 3 from having a dent 6 in a portion of its surface corresponding to a pinhole 4 of a resin molded product 1. A method of the present disclosure includes: applying an undercoat material to a resin molded product 1 to form an undercoat film 2; applying a topcoat material to a surface of the undercoat film 2 to form a topcoat film 3; and thermally curing the topcoat film 3. A coating material that contains a base resin having a larger volume expansion coefficient than the resin molded product 1 and a granular filler having a smaller volume expansion coefficient than the base resin and a number-average particle size of 2 ?m or more to 12 ?m or less is used as the undercoat material.

Abstract: Disclosed is a method for joining a metal member and a thermosetting resin member together with a thermoplastic resin interposed therebetween.

Abstract: Disclosed is a method for joining a metal member and a thermosetting resin member together with a thermoplastic resin interposed therebetween.

Abstract: In thermal pressure joining of joining a metal member to a resin member, a metal member (11) and a resin member (12) are stacked one on the other, a press member (160) applies heat and pressure locally on the metal member to soften and melt the resin member, the resin member is then solidified, the press member (160) is pressed into the metal member (11) to a depth shallower than a joint boundary (13) between the metal and resin members to deform a portion (110) of the metal member directly under the press member such that the portion protrudes toward the resin member, and resin (121) melted on a surface of the resin member in a region (60) of the joint boundary directly under the press member flows to an outer periphery (61) of the region (60).

Abstract: A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and deactivating the catalyst by a deactivator from which oxygen is removed. A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and passing the reaction solution containing the ?-olefin oligomer through a bag filter.

Abstract: In a frame structure for a vehicle having a reinforcement body provided inside a frame body, the frame body comprises a first face portion and a second face portion extending in a direction substantially perpendicular to a rotational-axis direction of a bending moment occurring when a torsional load acts on a vehicle body, and third face portions positioned between the first and second face portions, and the reinforcement body comprises third-face connection portions connected to the third face portions, a first-face connection portion connected to the first face portion at a corner portion, a first-face non-contact portion provided away from the first face portion, a second-face connection portion connected to the second face portion at a corner portion, and a second-face non-contact portion provided away from the second face portion.

Abstract: A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and deactivating the catalyst by a deactivator from which oxygen is removed. A method for producing an ?-olefin oligomer including: polymerizing in the presence of a catalyst one or more ?-olefins having 6 to 20 carbon atoms to produce an ?-olefin oligomer; and passing the reaction solution containing the ?-olefin oligomer through a bag filter.

Abstract: In a frame structure for a vehicle having a reinforcement body provided inside a frame body, the frame body comprises a first face portion and a second face portion extending in a direction substantially perpendicular to a rotational-axis direction of a bending moment occurring when a torsional load acts on a vehicle body, and third face portions positioned between the first and second face portions, and the reinforcement body comprises third-face connection portions connected to the third face portions, a first-face connection portion connected to the first face portion at a corner portion, a first-face non-contact portion provided away from the first face portion, a second-face connection portion connected to the second face portion at a corner portion, and a second-face non-contact portion provided away from the second face portion.

Abstract: In mounting a resin panel to a car body member, the car body member is provided with a car body member thread part, a portion of the resin panel corresponding to the car body member thread part is formed with a slot extending along a direction of allowance of thermal deformation of the resin panel, and the resin panel is mounted to the car body member using a fastener including: a threaded stem; a first large diameter part provided to one end of the threaded stem and insertable in the slot; and a fastener thread part provided at an end surface of the first large diameter part opposite to the threaded stem and screw-engageable with the car body member thread part.

Abstract: Provided are a thermoplastic resin composition, a thermoplastic resin molded product and an outside plate part of a vehicle capable of improving both characteristics of heat resistance and impact resistance while being compatible with each other. The thermoplastic resin composition contains: 65 to 86.5 mass % of a polyamide resin component (A), 13 to 25 mass % of an acid modified elastomer component (B), and 10 mass % or less of an olefin-based resin component (C) and/or 8 mass % or less of a filler component (D), wherein a dispersion phase of a core-shell type particle structure that is formed from the acid modified elastomer component (B) serving as a shell phase and the olefin-based resin component (C) and/or the filler component (D) serving as a core phase is dispersed in a matrix phase formed from the polyamide resin component (A).

Abstract: In mounting a resin panel to a car body member, the car body member is provided with a car body member thread part, a portion of the resin panel corresponding to the car body member thread part is formed with a slot extending along a direction of allowance of thermal deformation of the resin panel, and the resin panel is mounted to the car body member using a fastener including: a threaded stem; a first large diameter part provided to one end of the threaded stem and insertable in the slot; and a fastener thread part provided at an end surface of the first large diameter part opposite to the threaded stem and screw-engageable with the car body member thread part.

Abstract: Provided are a thermoplastic resin composition, a thermoplastic resin molded product and an outside plate part of a vehicle capable of improving both characteristics of heat resistance and impact resistance while being compatible with each other. The thermoplastic resin composition contains: 65 to 86.5 mass % of a polyamide resin component (A), 13 to 25 mass % of an acid modified elastomer component (B), and 10 mass % or less of an olefin-based resin component (C) and/or 8 mass % or less of a filler component (D), wherein a dispersion phase of a core-shell type particle structure that is formed from the acid modified elastomer component (B) serving as a shell phase and the olefin-based resin component (C) and/or the filler component (D) serving as a core phase is dispersed in a matrix phase formed from the polyamide resin component (A).

Abstract: A molding made of a thermoplastic resin composition that comprises a thermoplastic resin component and an elastomer component partly blending in with each other is continuously heated at a temperature higher than 120° C. but lower than a melting point of each of the two components for at least one hour so as thereby to cause the thermoplastic resin component to separate and precipitate in the elastomer component.

Abstract: A molding made of a thermoplastic resin composition that comprises a thermoplastic resin component and an elastomer component partly blending in with each other is continuously heated at a temperature higher than 120° C. but lower than a melting point of each of the two components for at least one hour so as thereby to cause the thermoplastic resin component to separate and precipitate in the elastomer component.

Abstract: The invention provides a structure of a front part of a vehicle body that is simple and free from the risk of maloperation. In the event of a collision between the vehicle and a pedestrian, a projecting part sweeps the pedestrian by parts of his or her legs lower than the knees in the event of a collision between the vehicle and the pedestrian, causing the pedestrian to be thrown over toward the vehicle, and after an energy-absorbing member has absorbed impact energy exerted on the legs, the pedestrian is caused to drop onto the top of a hood and protected from secondary damage.

Abstract: A polyolefin resin composition comprises a component A consisting of polypropylene or a propylene-ethylene block copolymer whose MFR is greater than 16 (g/10 minutes); a component B consisting of an ethylene based rubber; and a component D compatible with the component B. A ratio of summation of the propylene-ethylene copolymer part in the component A, the component B, and the component D to summation of the components A, B, and D is 25 wt. % or more and 45 wt. % or less. Further, a ratio of the blend quantity of the component D to summation of the blend quantities of the components B and D is less than 0.8. In this manner, the bending elastic modulus and the tensile breaking extension are included in a desired region, while the tensile breaking extension is improved.

Abstract: An injection molding composition includes: 100 parts by weight of a propylene-ethylene copolymer comprising a crystalline portion and a non-crystalline portion; and 17 to 33 parts by weight of inorganic particles capable of imparting at least one of rigidity and heat resistance to the propylene-ethylene copolymer. The propylene-ethylene copolymer has a melt flow rate of 15 to 50 g/10 min and a molecular weight distribution (Mw/Mn) of not less than 5. A crystalline ethylene polymer contained in the crystalline portion and a non-crystalline propylene-ethylene copolymer contained in the non-crystalline portion have a total amount ranging from 10 to 20% by weight.

Abstract: A non-destructive method of determining substrate tilt within a packaged component includes providing the packaged component (10) with a component surface (32), providing a substrate (22) in the packaged component (10) wherein the substrate (22) has a substrate surface (33), using an acoustic wave (50) to measure a distance (34) between the component surface (32) and a region on the substrate surface (33), using another acoustic wave (53) to measure another distance (35) between the component surface (32) and a different region on the substrate surface (33), and comparing the distances (34, 35) to a threshold value.

Abstract: The present invention relates to a method for preparing a composite material comprising a matrix resin of a thermal plastic resin and a liquid crystal resin which has a liquid crystal transition temperature higher than the minimum temperature of capable of molding said thermal plastic resin and which is formed into a fiber structure as a reinforcing material.The method is characterized in that the composite composition is subjected to a melt extrusion process at an apparent shear rate of 3.times.10.sup.2 to 10.sup.5 sec.sup.-1 and above the liquid crystal transition temperature. The resulting material in a filament or thin film has fibers of the liquid crystal resin having an aspect of more than 3 in the matrix resin, so that it is provided with an improved tensile strength by further being subjected to a drawing process at a drawing ratio of 11 to 120.