Abstract: A long-fiber-reinforced resin composition including the following component (A) and the component (B), the content of the component (A) being 50 to 90 wt % and the content of the component (B) being 10 to 50 wt %; and the content of reinforcing fiber contained in the component (A) being 20 to 60 wt % relative to the total amount of the fiber-reinforced resin composition: [Component (A)] a long-fiber-reinforced thermoplastic resin pellet including a thermoplastic resin, a modified polyolefin-based resin modified with an unsaturated carboxylic acid or its derivative and reinforcing fiber and satisfying the following (A-1) to (A-4): (A-1): the melt index of the thermoplastic resin (resin temperature: 230° C., load: 21.18N) is 100 to 250 g/10 min; (A-2): the relaxation time ? of the thermoplastic resin at an angular frequency ?=1 (rad/sec) calculated from the storage modulus G? and the loss modulus G? measured by means of a cone-and-plate rheometer is 0.

Abstract: An object of the present invention is to provide an extruded propylene-based resin foam in which a average diameter of cells therein can be reduced while a high expansion ratio remains high, thereby providing an excellent insulation efficiency. The extruded propylene-based resin foam according to the present invention is extruded propylene-based resin foam that is formed by extrusion-foaming a propylene-based resin, and the extruded propylene-based resin foam has the expansion ratio of 10 or more and the average cell diameter of less than 400 ?m. With this configuration, the extruded foam can have a plurality of air bubble walls therein. Thus, the extruded propylene-based resin foam can efficiently block external radiant heat, thereby realizing excellent insulation efficiency.

Abstract: Main object is to provide a composition for parts of the intake system, which is capable of enhancing the flexural elasticity modulus of the parts of the intake system and reducing the specific gravity of the parts. Disclosed is a fiber reinforced resin composition for parts of intake system on the internal combustion engine comprising a block polypropylene type resin which has a MFR in the range of 40-70 g/10 minutes (at 230° C. and under a load of 2.16 kg) and which is in the range of 60-80% by weight of the composition, and glass fibers and mica the total of which are in the range of 20-40% by weight of the composition.

Abstract: It is an object of the present invention to provide a polypropylene resin for syringe that can be used as a raw material for syringe that is excellent in sanitary property, heat resistance and transparency and hardly elutes low molecular weight substance and that can prevent formation of foam during molding, achieve long-run moldability and being prevented from scratches when removed from a core molding die in injection molding at satisfactory levels that have not been achieved conventionally. The polypropylene resin for syringe of the present invention comprises an ethylene-propylene block copolymer (A) having a melt flow rate (ASTM D 1238, 230° C., 2.16 kg load) of 10 to 60 g/10 min and being constituted of 85 to 97% by weight of a room-temperature n-decane-insoluble portion (Dinsol) and 3 to 15% by weight of a room-temperature n-decane-soluble portion (Dsol) (the total amount of the Dinsol and the Dsol is 100% by weight), wherein the Dinsol and the Dsol satisfy specific requirements.

Abstract: Polypropylene resin compositions are suited for injection molding and are capable of giving molded articles having excellent mechanical properties, reduced tendency to cause flow marks or weld marks, low gloss, and superior scratch resistance. A polypropylene resin composition includes: an amount of a resin composition (F) including a polypropylene (A), an ethylene-?-olef in copolymer or an ethylene-?-olefin-diene copolymer (B-I) having MFR of less than 0.4 g/10 min, an ethylene-?-olefin copolymer (B-2) having MFR of 0.5 to less than 20 g/10 min, and an inorganic filler (C); and specific amounts relative to the resin composition (F) of a modified polypropylene (D) and a surface modifier (E).

Abstract: There is provided a resin composition for a fuel cell member which givens only a small amount of eluting ions. A resin composition for a fuel cell member is formed to include 60 to 85 wt % of the following polypropylene and 40 to 15 wt % of the following talc: (1) polypropylene that is homopolypropylene, blockpolypropylene or a blend of homopolypropylene and blockpolypropylene, and has a melt flow rate of 2 to 40 g/10 min.; (2) talc that has a whiteness degree of 96% or more, and an average particle diameter of 4 to 10 ?m.

Abstract: A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an ?-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [?] of 0.5 to 3.0 dL/g in tetralin at 135° C.

Abstract: A polyethylene-based stretched film with a thickness in the range of 10 to 100 ?m, the film comprising components (A) and (B) (the total amount of components (A) and (B) being 100 parts by weight), and has a density in the range of 898 to 960 Kg/m3: (A) 50 to 95 parts by weight of a polyethylene composition which comprises the following components (I) and (II) (the total amount of (I) and (II) being 100 parts by weight), and has a density in the range of 890 to 940 Kg/m3: (I) 5 to 95 parts by weight of an ethylene/alpha-olefin copolymer obtained by copolymerization of ethylene and an alpha-olefin having 4 to 12 carbon atoms with the use of a metallocene catalyst, which has a melt flow rate in the range of 0.

Abstract: A polypropylene for an electric material has a melt flow rate of 0.1 to 30 g/10 min., a mesopentad fraction calculated from a 13C-NMR spectrum of 0.90 to 0.99, and a firing residue of 50 ppm by weight or less based on the polypropylene, a titanium content and an iron content which are detected from the firing residue, of 1 ppm by weight or less and 0.1 ppm or less, respectively, based on the polypropylene, and the chlorine content of 5 ppm by weight or less based on the polypropylene. The above polypropylene exhibits excellent electric insulation and has a roughened surface when it is formed into a film, and thus the polypropylene can be suitably used for a capacitor film without using an additive such as a ? crystal nucleating agent. The polypropylene is also useful as a material of a film for coating an electric wire and a material for an instrument for conveying an electronic material.

Abstract: An injection-molding die including: a fixed die; a movable die; a cavity defined by the fixed die and the movable die; and a gate for injecting a melt resin into the cavity. The cavity includes: a flow-dividing structure that divides a flow of the melt resin injected into the cavity into a plurality of resin flows; and a flow-advancing area in which the resin flows generated by the flow-dividing structure are merged together. The flow-advancing area is formed thicker than a flow-hesitating area of the flow-advancing area in the cavity.

Abstract: Polypropylene resins of the present invention give blow molded containers excellent in transparency, impact resistance and flexibility. Stretch blow molded containers obtained from the polypropylene resins enable volume reduction and weight reduction. A polypropylene resin includes a random polypropylene (P1) having MFR (ASTM D 1238, 230° C., 2.16 kg load) of 0.5 to 100 g/10 min and an ethylene content of 3.0 wt % to less than 7.0 wt %, (i) the resin containing the random polypropylene (P1) at not less than 80 wt %, (ii) the resin showing a broad DSC melting curve which has a single melting point peak and in which the maximum intensity peak temperature (Tm) is not more than 120° C. and the half-value width on a higher temperature side from the maximum intensity peak is not less than 20° C.

Abstract: A molding method which includes charging a resin composition in molten state containing not less than 7 wt % to less than 30 wt % of a fibrous fiber (A) and more than 70 wt % to not exceeding 93 wt % of a resin (B) into a die for shaping purpose when a temperature of the die is in the range of [the Vicat softening point minus 20° C.] of resin (B) to less than a melting point thereof, when resin (B) is crystalline resin, or when a temperature of the die is in the range of [the Vicat softening point minus 20° C.] to [the Vicat softening point plus 20° C.] of the resin (B), when resin (B) is non-crystalline resin, cooling the die after shaping to temperature which allows taking-out of a molded product.

Abstract: A novel propylene resin composition which can readily impart polypropylene fibers with excellent dyeability and can provide dyed fibers improved in washing resistance and weatherability is provided. A polypropylene resin composition obtained by melt blending the following components (A) to (C): (A) 85 to 95 mass % of a polypropylene-based resin; (B) 3 to 9 mass % of ethylene vinyl acetate (EVA); and (C) 2 to 6 mass % of a polyether ester amide-based compound; wherein the vinyl acetate content of the ethylene vinyl acetate as the component (B) is 20 mass % or more and 40 mass % or less, and the melt flow rate of the ethylene vinyl acetate is 10 g/10 min or more and 40 g/10 min or less.

Abstract: A fiber-reinforced resin composition comprising: (A) a polyolefin-based resin; (B) glass fibers having (B1) an average diameter of 3 to 30 ?m and (B2) an average aspect ratio of 50 to 6000; and (C) an acid-modified polypropylene-based resin exhibiting (C1) a change in amount of acid added, measured by Fourier transform infrared spectroscopy, before and after being treated in methyl ethyl ketone at 70° C. for three hours of 0.8 mass % or less, and having (C2) a melt flow rate (load: 2.16 kg, temperature: 230° C.) of 20 to 2000 g/10 min; the composition containing the components (A) to (C) at such a ratio (mass ratio) that (B):[(A)+(C)]=5 to 80:95 to 20 and (A):(C)=0 to 99.5:100 to 0.5.

Abstract: To provide a resin composition comprising a polypropylene resin composition and an aluminum flake pigment for use as an automotive resin composition, which is excellent in mechanical strength, physical properties and flowability, and enables to produce molded products showing good metallic appearance. A composition comprising a crystalline propylene/ethylene block copolymer, an elastomeric polymer and an inorganic filler is a preferred example of the polypropylene resin composition, and aluminum flakes surface-coated with a polymer containing as constituent units acrylic acid, an acrylic acid ester, epoxylated polybutadiene and divinylbenzene are preferred examples of the aluminum flake pigment.

Abstract: The extruded propylene-based resin foam according to the present invention is extruded propylene-based resin foam that is formed by extrusion-foaming a propylene-based resin, and the extruded propylene-based resin foam has the expansion ratio of 10 or more and the average cell diameter of less than 400 ?m. In addition, the extruded foam contains a 60 or less wt % fibrous filler in relation to the whole molding material. With this configuration, the extruded foam can have a plurality of foam cell walls therein. Thus, the extruded foam can efficiently block external radiant heat, thereby realizing excellent insulation efficiency. Furthermore, because the fibrous filler is oriented along the thickness direction, even when the extruded foam is slightly strained in the thickness direction, a high stress arises, thereby improving energy-absorbing capability.

Abstract: To provide an expansion injection molding process, which is freed from the occurrence of swirl marks on the surface of a molded article and by which foamed injection moldings having good appearance can be produced in a short molding cycle and at a low cost; and a mold for expansion injection molding. A movable mold 2 is moved toward a fixed mold 1, whereby a sealing member 6 set on at least one of a pair of facing surfaces of the mold 1 and mold 2 in the outside of a cavity is brought into contact with the other of the facing surfaces or a sealing member 6 set thereon to make the cavity 3 gas-sealed state. While keeping the gas-sealed state, the movable mold 2 is further moved toward the fixed mold 1 with the sealing member 6 compressed, whereby the volume of the cavity 3 is decreased to enhance the pressure in the cavity 3 to a level exceeding the atmospheric pressure. Then, a thermoplastic resin is injected into the cavity 3 of an enhanced pressure.

Abstract: An acid-modified polyolefin-based resin for glass fiber treatment having: (1) an amount of components extractable with boiling methyl ethyl ketone of 8 mass % or less; (2) a number average molecular weight (Mn), measured by gel permeation chromatography (GPC), of 6,000 to 48,000; and (3) an amount of an acid which has been added, measured by Fourier transform infrared spectroscopy, of 0.1 to 12 mass %.

Abstract: The extruded propylene-based resin composite foam (1) according to the present invention is provided by extrusion-foaming a molding material containing a propylene-based resin. The propylene-based resin forming the extruded foam has an olefin-based polymer whose loss tangent (tan ?) is 0.04 to 100 at a temperature of 298 K and a frequency of 10 Hz. The molding material includes a fibrous filler in an amount of more than 0 mass % and 60 mass % or less of the entirety of the molding material. The extruded composite foam (1) includes: first extruded foam (2) whose closed cell content is 40 percent or more and whose expansion ratio is 10 or more; and second extruded foam (3) whose closed cell content is less than 40 percent and whose expansion ratio is 10 or more.

Abstract: An interior part for an automobile that is disposed on a front side in the automobile is obtained by integrally molding an instrument panel fascia, a duct, and a reinforce member by a blow molding method including: extruding a resin composition into a molten parison; holding the parison in a metal mold; and blowing the air into the parison to obtain a resin molding. Thus, as compared to an arrangement where each of the members is formed separately, the number of members can be reduced. In addition, the arrangement requires only one type of material, a metal mold, and a molding device, and does not require an assembly step that is required in the arrangement with separately molded members, resulting in reduced cost.