Abstract: A method for producing a sheet molding compound including impregnating a resin composition into carbon fibers. The method is characterized in that the bulkiness Ho of the carbon fibers before an impregnation step is 3 mm or more, the compression ratio Rc(Hc/Ho) of the carbon fibers in the impregnation step is less than 1, the thickness of the sheet molding compound is 10 mm or less, and the content Wc of the carbon fibers is 40% by mass or more. The method for producing a sheet molding compound can produce a sheet molding compound having the excellent impregnation property into carbon fibers and thus can be preferably used for exteriors, structures, and the like of an automotive member, a railroad vehicle member, an aerospace vehicle member, a ship member, a housing equipment member, a sport member, a light vehicle member, a civil engineering and construction member, an OA equipment.

Abstract: Provided is a method for producing a sheet molding compound, including a step of measuring bulkiness of a carbon fiber aggregate before an impregnation step of impregnating the carbon fiber aggregate with a resin composition. The method for producing a sheet molding compound can produce a sheet molding compound having the excellent impregnation property into carbon fibers regardless of the content of the carbon fibers, and thus can be preferably used for exteriors, structures, and the like of an automotive member, a railroad vehicle member, an aerospace vehicle member, a ship member, a housing equipment member, a sport member, a light vehicle member, a civil engineering and construction member, an OA equipment, etc.

Abstract: Provided is a method for producing a sheet molding compound including an aging step for thickening a sheet-like resin compound. The method includes applying a load of 0.2 to 50 g/cm2 to at least part of the sheet-like resin compound for 1 hour or more under a condition of an internal temperature of 20 to 120° C. in the aging step. A sheet molding compound obtained from this method for producing a sheet molding compound and its molded article have excellent carbon fiber impregnability and the like and can thus suitably be used for the exteriors, structures, and the like of automotive components, railway vehicle components, aerospace vehicle components, ship components, housing equipment components, sports components, light vehicle components, construction and civil engineering components, OA equipment, and the like.

Abstract: Provided is a method for producing a sheet molding compound, including impregnating a resin composition into carbon fibers. The viscosity at 25° C. of the resin composition is 300 to 20000 mPa·s, the temperature Tc of the carbon fibers is 15° C. to 115° C. when sandwiched between the resin compositions on carrier films disposed on upper and lower sides, and the content of the carbon fibers in the sheet molding compound is 35% to 30% by mass. The method for producing a sheet molding compound can produce SMC having an excellent impregnation property into carbon fibers regardless of the carbon fiber content and thus can be preferably used for exteriors, structures, and the like of an automotive member, a railroad vehicle member, an aerospace vehicle member, a ship member, a housing equipment member, a sport member, a light vehicle member, a civil engineering and construction member, an OA equipment, etc.

Abstract: A method for producing a sheet molding compound including impregnating a resin composition into carbon fibers. The method is characterized in that the bulkiness Ho of the carbon fibers before an impregnation step is 3 mm or more, the compression ratio Rc (Hc/Ho) of the carbon fibers in the impregnation step is less than 1, the thickness of the sheet molding compound is 10 mm or less, and the content Wc of the carbon fibers is 40% by mass or more. The method for producing a sheet molding compound can produce a sheet molding compound having the excellent impregnation property into carbon fibers and thus can be preferably used for exteriors, structures, and the like of an automotive member, a railroad vehicle member, an aerospace vehicle member, a ship member, a housing equipment member, a sport member, a light vehicle member, a civil engineering and construction member, an OA equipment.

Abstract: A sheet molding compound resin composition containing a thermosetting resin (A), a resin-curing agent (B), and a glycidyl ether (C) including an alkyl group having a carbon atom number of 7 to 14 and a glycidyl group is provided. The sheet molding compound resin composition can be favorably used for a sheet molding compound and a molded article of the sheet molding compound as a result of having excellent impregnating ability with respect to carbon fiber regardless of the resin viscosity.

Abstract: Provided is a fiber-reinforced molding material containing a thickening substance (A) containing a vinyl ester resin (a1), an unsaturated monomer (a2), a polyisocyanate (a3), and a polymerization initiator (a4) as essential raw materials and carbon fibers (B) with a fiber length of 2.5 mm to 50 mm. The thickening substance (A) satisfies conditions (1) to (3) below as measured with a rheometer. (1) The maximum value of the rate of change in viscosity in a temperature region lower than a temperature Xa indicating the lowest melt viscosity A is 100 Pa·s/° C. to 1,500 Pa·s/° C. (2) The maximum value of the rate of change in viscosity in a temperature region higher than or equal to the temperature Xa is 1,000 Pa·s/° C. to 10,000 Pa·s/° C. (3) The lowest melt viscosity A is 10 Pa·s to 1,000 Pa·s and the temperature Xa is 70 ° C. to 140 ° C.

Abstract: To provide a molding material which uses, as essential raw materials, (A) an aromatic epoxy resin, (B) a curing agent for epoxy resins, and (C) a curing accelerator, and which has a ratio of transmittance at 910 cm?1 to transmittance at 1510 cm?1 (910 cm?1/1510 cm?1) in FT-IR ATR measurement in the range of 1 to 3. Since the molding material exhibits excellent productivity, moldability and the like, the molding material can be suitably used in automobile members, railway vehicle members, aerospace vehicle members, watercraft members, housing equipment members, sports members, light vehicle members, construction civil engineering members, and exteriors and structures of office automation equipment, etc.

Abstract: A resin composite having excellent strength is easily produced by using a resin foam having a specific surface roughness (Ra) as the core material of the resin composite.

Abstract: A resin composite in which a fiber-reinforced resin material comprising fibers and a resin, and a resin expanded body are integrally laminated, wherein the resin expanded body has a hole opened at the interface with the fiber-reinforced resin material and resin of the fiber-reinforced resin material is caused to flow into the hole.

Abstract: A resin composite in which the flatness ratio of cells in a corner section of a core material is 20% or more is provided.

Abstract: A resin composite in which a fiber-reinforced resin material comprising fibers and a resin, and a resin expanded body are integrally laminated, wherein the resin expanded body has a hole opened at the interface with the fiber-reinforced resin material and resin of the fiber-reinforced resin material is caused to flow into the hole.

Abstract: A resin composite having excellent strength is easily produced by using a resin foam having a specific surface roughness (Ra) as the core material of the resin composite.

Abstract: A resin composite in which the flatness ratio of cells in a corner section of a core material is 20% or more is provided.

Abstract: A resin composite in which a fiber-reinforced resin material comprising fibers and a resin, and a resin expanded body are integrally laminated, wherein the resin expanded body has a hole opened at the interface with the fiber-reinforced resin material and resin of the fiber-reinforced resin material is caused to flow into the hole.

Abstract: There is provided a light reflection plate that can uniformly exhibit high light diffusibility. The light reflection plate includes 100 parts by weight of a polyolefin-based resin and 20 to 120 parts by weight of a coated titanium oxide that is obtained by coating a surface of titanium oxide with a coating layer containing aluminum oxide and silicon oxide. The coated titanium oxide is constituted by primary particles having a particle size of 0.10 to 0.39 ?m and agglomerated particles which are formed by agglomeration of the primary particles and have a particle size of 0.4 ?m or more. The number of the agglomerated particles in a cross section of the light reflection plate in a thickness direction is 0.1 to 4.5 /900 ?m2 and the number of the primary particles, which are not agglomerated, in the cross section of the light reflection plate in the thickness direction is 1.5 to 11.0 /900 ?m2.

Abstract: The present invention provides a foamed sheet for a reflector which can be transformed to a reflector having a desired shape by thermoforming. A foamed sheet A for a reflector of the present invention is characterized by being a foamed sheet for a reflector including a polypropylene-based resin foamed sheet 1 which has an average cell diameter of from 50 to 650 ?m and at least one surface which is an uneven surface 12 formed by cells 11 located in the vicinity of the surface, and a polypropylene-based resin non-foamed sheet 3 integrally laminated on the polypropylene-based resin foamed sheet 1 in conformity with the uneven surface 12 and having an uneven surface 31, wherein the foamed sheet A for a reflector contains an inorganic filler in an amount of from 50 to 200 g/m2, the whole or part of the inorganic filler is contained in the polypropylene-based resin foamed sheet 1, a refractive index of an inorganic filler 2 differs by 1.