Abstract: Disclosed is a method for producing a thermoplastic resin composition, the method including a first step of melt-kneading 100 parts by weight component (A) and from 15 to 200 parts by weight of component (B) to form a melt-kneaded material, and a second step of melt-kneading from 35 to 2300 parts by weight of additional component (B) with the melt-kneaded material formed in the first step, wherein component (A) is an elastomer having a melt viscosity, as measured at a temperature of 230° C. and a shear rate of 121 sec?1, of 1500 Pa·s or more and the component (B) is a polyolefin resin.

Abstract: Disclosed is a polypropylene resin composition comprising from 50 to 95 wt. % of propylene homopolymer component (A) and from 5 to 50 wt. % of ethylene-?-olefin copolymer component (B1), the polypropylene resin composition having a melt index of not less than 40 g/10 min but less than 500 g/10 min, provided that the percentages by weight are based on the combined weight of the components (A) and (B1), wherein the homopolymer component (A) has an intrinsic viscosity [?]A of from 0.5 to 1.4 dl/g, and wherein the ratio of the intrinsic viscosity [?]B1 of the copolymer component (B1) to the intrinsic viscosity [?]A of the homopolymer component (A), [?]B1/[?]A, is from 0.5 to 3. This composition may be modified by addition of a resin component selected from the group consisting of ethylene homopolymer and aromatic vinyl compound-containing rubber. These components are advantageously used for injection foam molding.

Abstract: There is provided a process for producing a modified polyolefin resin, which comprises the step of melt kneading at least the following components (A), (B) and (C): (A) 100 parts by weight of a polyolefin resin, (B) from 0.1 to 20 parts by weight of a compound containing an amino group and an unsaturated bond, and (C) from 0.01 to 20 parts by weight of an organic peroxide.

Abstract: Disclosed is a method for producing a propylene-based resin composition comprising: a first step of producing a first resin composition (MB) by melt-kneading a first-propylene polymer (A-I) and a fibrous inorganic filler (B) in a weight ratio of (A-I) to (B) of from 3/7 to 7/3; and a second step of producing a second resin composition by adding a second propylene polymer (A-II), a non-fibrous inorganic filler (C) and an elastomer (D) selected from the group consisting of olefin-based elastomer and vinyl aromatic compound-containing elastomer to the first resin composition (MB), followed by melt-kneading them.

Abstract: Disclosed are processes for producing polypropylene resin compositions including two or three sorts of propylene-based polymeric materials, the processes including a first step of melt-kneading at least a propylene-?-olefin block copolymer containing a polymer portion composed mainly of propylene and a propylene-?-olefin copolymer portion having a relatively high intrinsic viscosity and a second step of melt-kneading the product of the first step with a propylene-ethylene block copolymer containing a polymer portion composed mainly of propylene and a propylene-ethylene copolymer portion having a relatively low intrinsic viscosity or a polymer portion composed mainly of propylene having a relatively low intrinsic viscosity. In the composition produced by these processes, no or substantially no fish eyes develop.

Abstract: There is provided a process for producing a modified polyolefin resin, which comprises the step of melt-kneading a blend containing: (A) 100 parts by weight of a polyolefin resin, (B) 0.1 to 20 parts by weight of a compound represented by the following formula (1), and (C) 0.01 to 20 parts by weight of an organic peroxide having a decomposition temperature of 50 to 115° C., at which temperature a half-life thereof is 1 minute, wherein R1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; and R2 is an alkylene group having 1 to 20 carbon atoms.

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: There is provided a process for producing a modified polyolefin resin, which comprises the step of melt kneading at least the following components (A), (B) and (C): (A) 100 parts by weight of a polyolefin resin, (B) from 0.1 to 20 parts by weight of a compound containing an amino group and an unsaturated bond, and (C) from 0.01 to 20 parts by weight of an organic peroxide.

Abstract: There is provided a process for producing a modified polyolefin resin, which comprises the steps of: (1) blending at least the following components (A) to (D) to produce a blend: (A) 100 parts by weight of a polyolefin resin, (B) from 0.1 to 20 parts by weight of a compound having an epoxy group and an unsaturated bond, (C) from 0.01 to 20 parts by weight of an organic peroxide having a decomposition temperature of from 50 to 115° C., at which temperature a half-life thereof is 1 minute, and (D) from 0 to 20 parts by weight of an organic peroxide having a decomposition temperature of from 150 to 200° C., at which temperature a half-life thereof is 1 minute, and (2) melt-kneading said blend to produce a modified polyolefin resin.

Abstract: There are provided: (I) a process for producing a resin composition comprising the step of melt kneading at least (i) an epoxy group-containing polyolefin resin, (ii) an epoxy resin, and (iii) optionally, an ethylene-?-olefin copolymer; (II) a modifier for a polyester resin comprising a resin composition produced according to the above-mentioned process; and (III) a process for producing a modified polyester resin comprising the step of melt kneading at least (1) a resin composition produced according to the above-mentioned process, and (2) a polyester resin.

Abstract: A process for producing a modified polyethylene resin, which comprises the step of melt kneading at least:

Abstract: There is provided a process for producing a modified polyolefin resin, which comprises the steps of:

Abstract: There is provided a process for producing a modified ethylene-vinylcyclohexane copolymer resin, which comprises the steps of:

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: There is disclosed a thermoplastic resin composition comprising; (i) 30 to 94% by weight of a polypropylene (A), (ii) 5 to 69% by weight of a polyphenylene ether (B), and (iii) 1 to 50% by weight of a copolymer (C), provided that a total weight of the components (A), (B) and (C) is 100% by weight, wherein the copolymer (C) has a molar ratio of a structural unit derived from the &agr;-olefin represented by the following formula (I) to a structural unit derived from ethylene of not less than (0.8/(3n+2)/1, CH2=CH—(CH2)nCH2CH3  (I) wherein n is an integer of 0 to 10.

Abstract: There is disclosed a thermoplastic resin composition comprising;