Abstract: A propylene-based resin is disclosed which has at least one kind of functional groups selected from the group (i) consisting of a hydroxyl group, an amino group and a mercapto group, and at least one kind of functional groups selected from the group (ii) consisting of a carboxyl group, an acid anhydride group, epoxy group and an isocyanate group.

Abstract: A method for producing a modified polyolefin resin is disclosed which has a step of melt-kneading 100 parts by weight of polyolefin resin (A), from 0.1 to 20 parts by weight of at least two kinds of nonaromatic double-bond-containing monomer (B) and from 0.01 to 20 parts by weight of organic peroxide (C), wherein at least one member of the at least two kinds of nonaromatic double-bond-containing monomer (B) is a nonaromatic double-bond-containing monomer having at least one kind of functional group selected from the group consisting of amino group, hydroxyl group and mercapto group or a derivative of the monomer (B1), and other at least one member is a nonaromatic double-bond-containing monomer having at least one kind of functional group selected from the group consisting of carboxyl group, acid anhydride group, epoxy group and isocyanate group or a derivative of the monomer (B2).

Abstract: Disclosed is a polyolefin resin composition comprising 100 parts by weight of component (A), 0.001 to 10 parts by weight of component (B) and 0.01 to 100 parts by weight of component (C): component (A): polyolefin resin; component (B): carbon black which satisfies the following requirements (1) and (2): requirement (1): containing a volatile component in an amount of less than 0.2% by weight as measured by the method provided in JIS K6221: requirement (2): containing at least one element selected from the group consisting of iron, nickel, copper, cobalt, aluminum, manganese and vanadium in an amount, based on the weight of the carbon black, of 4 ppm or less; component (C): stabilizer.

Abstract: There is provided a process for producing a modified polypropylene resin, which comprises the steps of mixing the following components (A) to (D), and reacting them with one another: (A) 100 parts by weight of a polypropylene resin, (B) 0.1 to 30 parts by weight of a compound having a bond or a functional group selected from the group consisting of a non-aromatic carbon-carbon multiple bond, an oxirane group and a derived carboxyl group, (C) 0.001 to 30 parts by weight of a compound having at least two functional groups reactive to a carboxyl group, and (D) 0.01 to 20 parts by weight of an organic peroxide having a decomposition temperature of from 50 to 120° C., at which temperature a half-life of the organic peroxide is 1 minute.

Abstract: Disclosed is a composite material comprising: resin (I) comprising 10 to 99% by weight of a crystalline thermoplastic resin which is defined as component (A), and 1 to 90% by weight of a crystalline thermoplastic resin having a crystallization temperature lower than that of component (A) by at least 10° C., which resin is defined as component (B), and 5 to 400 parts by weight, based on 100 parts by weight of the resin (I), of fiber, which is defined as component (C), wherein the contents of the component (A) and the component (B) are each based on a combined content of these two components.

Abstract: A fiber-polypropylene resin composite is disclosed which includes:

Abstract: Disclosed is a fiber/resin composite comprising fibers (A), polypropylene resin (B) and modified polyolefin resin (C), the weight ratio of the polypropylene resin (B) to the modified polyolefin resin (C) being 99.9/0.1 to 60/40, the modified polyolefin resin (C) having a melt flow rate of 30 to 150 g/10 min, the fibers (A) being arranged parallel to each other in one direction, the composite having a length of 2 to 100 mm along the direction in which the fibers (A) are arranged, the fibers (A) having a weight average length equal to the length of the composite, wherein the polypropylene resin (B) is composed of propylene homopolymer segment (B-1) and propylene-ethylene copolymer segment (B-2), the propylene homopolymer segment (B-1) having an isotactic pentad fraction of at least 0.980 and the content of the propylene-ethylene copolymer segment (B-2) in the polypropylene resin (B) being 10 to 40% by weight.

Abstract: Disclosed is a fiber-reinforced polyolefin resin composite containing a polyolefin resin (components (A)), fibers (component (B)) and a heavy metal deactivator (component (C)), the ratio of the weight of component (A) to the weight of component (B), (component (A)/component (B)), being from 20/80 to 95/5, the ratio of the weight of component (C) to the combined weight of component (A) and component (B), (component (C)/[component (A)+component (B)]), being from 0.001/100 to 5/100, wherein in the composite substantially all the component (B) have lengths of 2 mm or more. The composite has an improved durability under circumstances of contact with metal. A molded article obtained from the composite is also disclosed.

Abstract: Disclosed is a fiber/resin composite comprising fibers (A), polypropylene resin (B) and modified polyolefin resin (C), the weight ratio of the polypropylene resin (B) to the modified polyolefin resin (C) being 99.9/0.1 to 60/40, the modified polyolefin resin (C) having a melt flow rate of 30 to 150 g/10 min, the fibers (A) being arranged parallel to each other in one direction, the composite having a length of 2 to 100 mm along the direction in which the fibers (A) are arranged, the fibers (A) having a weight average length equal to the length of the composite, wherein the polypropylene resin (B) is composed of propylene homopolymer segment (B-1) and propylene-ethylene copolymer segment (B-2), the propylene homopolymer segment (B-1) having an isotactic pentad fraction of at least 0.980 and the content of the propylene-ethylene copolymer segment (B-2) in the polypropylene resin (B) being 10 to 40% by weight.

Abstract: Disclosed is a fiber-reinforced polyolefin resin composite containing a polyolefin resin (components (A)), fibers (component (B)) and a heavy metal deactivator (component (C)), the ratio of the weight of component (A) to the weight of component (B), (component (A)/component (B)), being from 20/80 to 95/5, the ratio of the weight of component (C) to the combined weight of component (A) and component (B), (component (C)/[component (A)+component (B)]), being from 0.001/100 to 5/100, wherein in the composite substantially all the component (B) have lengths of 2 mm or more. The composite has an improved durability under circumstances of contact with metal. A molded article obtained from the composite is also disclosed.

Abstract: Disclosed are a composite material containing (A) a modified polyolefin resin graft-modified with an unsaturated carboxylic acid and/or its derivative and (B) a filler, wherein a content of the component (B) is from 1 to 80 parts by weight based on 100 parts by weight of a combined content of the components (A) and (B), a graft amount of the unsaturated carboxylic acid and/or its derivative in the component (A) is 0.3% by weight or more, and the component (A) has a melt flow rate as measured at 230° C. and a load of 21.2 N of 400 g/10 min or less and a composite material further containing (C) a polyolefin resin.

Abstract: Disclosed is a formed article made of a fiber-reinforced polypropylene resin comprising from 20 to 95% by weight of a polypropylene resin and from 5 to 80% by weight of fibers, wherein in the formed article the polypropylene has an intrinsic viscosity [&eegr;] of from 1.05 dl/g to 2.00 dl/g, the fibers have a weight average fiber length of from 1 mm to 10 mm, and a degree of dispersion of the fibers is from 0 to 1.2. The formed article is superior in both mechanical strength and fatigue characteristic.

Abstract: There is provided a process for producing a modified polypropylene resin, which comprises the steps of mixing the following components (A) to (D), and reacting them with one another:

Abstract: There is provided a process for producing an acid modified polypropylene resin, which comprises the step of kneading: (1) 100 parts by weight of a polypropylene resin (A), (2) 0.1 to 20 parts by weight of an unsaturated carboxylic acid or a derivative thereof (B), (3) 0.01 to 20 parts by weight of an organic peroxide (C) having a decomposition temperature of from 50 to 120° C., at which a half-life of the organic peroxide is 1 minute, and (4) optionally, 0.01 to 20 parts by weight of an organic peroxide (D) having a decomposition temperature of from 150 to 200° C., at which a half-life of the organic peroxide is 1 minute.

Abstract: There is provided a process for producing an acid modified polypropylene resin, which comprises the step of kneading:

Abstract: It is an object of the present invention to obtain a vacuum chucking which can vacuum suck a wafer even if dusts attach thereon. The main body of vacuum chuck (101) has a plurality of block grooves (125) on the surface on which the wafer (1) is sucked and fixed, in which vacuum evacuation paths (105) each for vacuum evacuating each block groove (125) are provided for each block groove (125). When the wafer (1) is sucked and fixed under low pressure, even if the degree of vacuum in one of the block grooves (125) decreases due to attachment of dusts on part of the suction surface, or the like, the wafer (1) can surely be sucked and held.

Abstract: It is an object of the present invention to obtain a vacuum chucking which can vacuum suck a wafer even if dusts attach thereon. The main body of vacuum chuck (101) has a plurality of block grooves (125) on the surface on which the wafer (1) is sucked and fixed, in which vacuum evacuation paths (105) each for vacuum evacuating each block groove (125) are provided for each block groove (125). When the wafer(1) is sucked and fixed under low pressure, even if the degree of vacuum in one of the block grooves (125) decreases due to attachment of dusts on part of the suction surface, or the like, the wafer (1) can surely be sucked and held.

Abstract: A semiconductor film production apparatus includes a reaction vessel for containing a substrate and including a gas supply port for supplying a reaction gas to the vessel, a gas discharge port for discharging the reaction gas from the vessel after reaction, and a light-transmitting glass window; a light source disposed outside the reaction vessel for irradiating a substrate in the reaction vessel through the light-transmitting glass window to heat the substrate; a cylindrical substrate holder disposed in the reaction vessel for holding the substrate with a first surface facing the light source and a second surface, opposed to the first surface, exposed to the reaction gas; a ring plate having a central opening with an area smaller than the substrate and an outside diameter dividing the reaction vessel into two compartments, the ring plate contacting the first surface of the substrate; a carrier gas supply port for introducing a carrier gas between the substrate and the light-transmitting glass window; and a r