A flame-retardant polycarbonate resin composition characterized by comprising 100 parts by weight of a polycarbonate resin (A), about 0.01 to 8 parts by weight of a silicone compound (B) whose main chain has a branched structure and whose organic substituents bear aromatic groups, either about 0.03 to 5 parts by weight of a metal salt (C) of an aromatic sulfur compound or about 0.01 to 5 parts by weight of a metal salt (D) of a perfluoroalkanesulfonic acid and, if necessary, about 0.05 to 5 parts by weight of a fiber-forming fluoropolymer (E). This composition is remarkably improved in flame retardance without impairing the impact resistance and moldability, and is out of danger of generating a halogen-containing gas due to a flame retardant in burning by virtue of its being free from a flame retardant comprising a chlorine or bromine compound, thus being advantageous in respect to environmental protection.

Flame-retardant polycarbonate resin composition

To provide a thermoplastic polyester resin composition which has a very good durability to alkaline solutions for a long period of time. That is, a thermoplastic polyester resin composition, wherein a thermoplastic polyester resin (A) is compounded with 1-25% by weight (in the total composition) of impact resistance rendering materials (B), 0.1-15% by weight (in the total composition) of a silicone compound and/or a fluorine compound (C), 1-50% by weight (in the total composition) of an inorganic filler (D), and 0.1-10% by weight of at least one polyfunctional compound (E) selected from the group consisting of an epoxy compound, an isocyanate compound and a carboxylic acid dianhydride. A molded article of the present invention has anti-stress properties even in a weld part thereof.

Thermoplastic polyester resin composition

A flame-retardant aromatic polycarbonate resin composition which comprises (A) an aromatic polycarbonate resin (component A), (B) an acrylonitrile-styrene copolymer (component B), (C) an inorganic filler (component C), (D) an organophosphorus flame retardant (component D), and (E) a fluorine -containing anti-dropping agent (component E) in specified proportions and which is characterized by satisfying the requirement that the component (C) should comprise (C1) mica and (C2) talc and/or wollastonite at a specific ratio; and articles molded from the composition. The invention provides a lightweight resin composition which is excellent in mechanical characteristics, flame retardance, and dimensional stability, and little causes a mold to wear out; and molded articles thereof.

Flame-retardant aromatic polycarbonate resin composition

An object of the present invention is to propose a novel thermoplastic resin composition having high impact resistance without degrading weather resistance even when the content of an impact modifier is small. A thermoplastic resin composition includes 100 parts by weight of a thermoplastic resin (a) and 0.5 to 20 parts by weight of an impact modifier (b) containing a graft copolymer (b-1) containing at least one (meth)acrylate flexible polymer phase and a rigid polymer phase serving as the outermost part of the graft copolymer, a water-soluble polymer compound (b-2) having a physical gel-forming property, and a gelling agent (b-3). In the thermoplastic resin composition, the content of the water-soluble polymer compound (b-2) having the physical gel-forming property is 0.01 to 3.0 parts by weight relative to 100 parts by weight of the graft copolymer (b-1) and the content of the rigid polymer phase serving as the outermost part in the graft copolymer (b-1) is 0.5 to 10 percent by weight.

Thermoplastic Resin Composition

A load estimator supplies, to a controller, a load condition signal corresponding to the current load condition and the estimated load condition of the system. An operational setting storage unit stores an operational setting requirement of the entire system. When the controller determines that the operational requirement meets the operational setting requirement, and the load condition signal meets a predetermined requirement, it reads out, from a relocation program storage unit, an optimum relocation program in association with location information stored in a data location information storage unit, and controls a data relocation unit in accordance with the read relocation program. During a process for relocating data, the controller monitors a predetermined requirement of the suspension (execution of writing, etc., data to a data storage unit). When the requirement of the suspension is fulfilled, the controller terminates the data relocation process processed by the data relocation unit.

Data storage system, data relocation method and recording medium

PURPOSE:To obtain a resin composition excellent in the balance between low- temperature impact resistance and rigidity and also in chemical resistance by mixing a polyphenylene ether resin with a polyolefin resin, a specified copolymer and a specified partially hydrogenated high impact-resistant PS resin CONSTITUTION:The resin composition excellent in low-temperature impact resistance is obtained by mixing 40-94 ptswt polyphenylene ether resin or mixture thereof with a polystyrene resin with 2-20 ptswt polyolefin resin, 4-40 ptswt vinylaromatic compound/conjugated diene compound copolymer and/or its hydrogenation product and 1-50 ptswt partially hydrogenated high impact- resistant polystyrene resin of a mean rubber particle diameter of 15mum or above This composition is excellent in the balance between low-temperature impact resistance and rigidity and also in chemical resistance and can be used in electrical and electronic fields, automobile field and industrial material field

Resin composition excellent in low-temperature impact resistance

PROBLEM TO BE SOLVED: To provide a flame-retardant polycarbonate resin composition which gives a thin-walled molded item excellent in flame retardancy, stiffness, melt flowability, impact resistance, mold-staining resistance, and heat resistance. SOLUTION: This flame-retardant polycarbonate resin composition contains (A) 50-85 pts.wt. aromatic polycarbonate resin, (B) 35-0 pts.wt. copolymer comprising (b-1) aromatic vinyl monomer units and (b-2) vinyl cyanide monomer units, (C) 50-15 pts.wt. cyanide-containing graft copolymer prepared by copolymerizing (c-1) an aromatic vinyl compound and (c-2) a vinyl cyanide compound in the presence of (c-3) a rubbery polymer, and, basing upon 100 pts.wt. sum of ingredients A, B, and C, (D) 5-30 pts.wt. at least one organic phosphorus compound oligomer and (E) 0.1-20 pts.wt. talc, and basing upon 100 pts.wt. sum of ingredients A, B, C, D, and E, (F) 0.2-0.5 pts.wt. fluoropolymer. COPYRIGHT: (C)2003,JPO

PROBLEM TO BE SOLVED: To obtain the subject resin composition having excellent dripproof effect and also excellent in surface appearance by melt kneading a fluororesin with a resin composition lying within a specific viscosity range by a specific means so as to afford high dispersibility of the fluororesin in the final composition. SOLUTION: This resin composition, which comprises (A) 100 pts.wt. of a thermoplastic resin, (B) 0.1-30 pts.wt. of a flame retardant and (C) 0.01-5 pts.wt. of a fluororesin, is obtained through the following process: first, a composition M comprising 10-100 pts.wt. of the component A and determined by a capillary rheometer; secondly, the blend is compounded with <=90 pts.wt. of the component A and <=30 pts.wt. of the component B and further kneaded under a melting state. It is preferable that the component C is compounded using a dispersion of tetrafluoroethylene resin.

Production of flame-retardant resin composition with excellent dripproofness

PROBLEM TO BE SOLVED: To obtain a resin compsn. which is excellent in flame retardance and dripping prevention effect and is suitable for injection molding by crushing a fluororesin, blending a thermoplastic rein with the crushed fluororesin and a flame retardant, and melt kneading the resultant blend. SOLUTION: 100 pts.wt. thermoplastic resin is compounded with 0.01-5 pts.wt. fluororesin and 0. 1-30 pts.wt. flame retardant. The fluororesin is crushed at -5°C or lower in advance and then is blended with the thermoplastic resin at 10°C or lower before melt kneading. Pref., the thermoplastic resin comprises 5-98 wt.% polycarbonate resin and 95-2 wt.% rubber-reinforced resin which comprises a vinyl polymer and a graft polymer obtd. by grafting at least one vinyl compd. onto a rubbery polymer. COPYRIGHT: (C)1998,JPO

Production of flare-retardant resin composition

PROBLEM TO BE SOLVED: To obtain a polycarbonate-based flame retardant resin composition that presents ultrathin molded products excellent in flame retardance, rigidity, melt flowability, impact resistance, mold staining properties and heat resistance. SOLUTION: This polycarbonate-based flame retardant composition comprises 50-95 pts.wt. aromatic polycarbonate resin (A), 50-5 pts.wt. rubber-modified styrene-based resin (B), hereafter based on 100 pts.wt. sum of the component (A) and the component (B), 5-30 pts.wt. at least one organic phosphorus compound oligomer (C), 0.05-2 pts.wt. fluoro polymer (D) and 0.1-20 pts.wt. talc (E). The average particle size of talc (E) included in the composition is 1-50 μm and the particles having ≥7 μm particle size are 1-80% of whole talc particles. COPYRIGHT: (C)2003,JPO

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Papers

Resin composition excellent in low-temperature impact resistance

Flame-retardant polycarbonate resin composition

Production of flame-retardant resin composition with excellent dripproofness

Production of flare-retardant resin composition

Polycarbonate-based flame retardant resin composition and thin-walled molded product

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Papers

Resin composition excellent in low-temperature impact resistance

Flame-retardant polycarbonate resin composition

Production of flame-retardant resin composition with excellent dripproofness

Production of flare-retardant resin composition

Polycarbonate-based flame retardant resin composition and thin-walled molded product

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