The object of the present invention is to provide a polyarylene sulfide composition having excellent thermal conductivity, dimensional stability, heat resistance and low gas property, which is particularly useful to applications of electric parts such as electric and/or electronic parts or automobile electric parts. The present invention relates to a polyarylene sulfide composition comprising a polyarylene sulfide (a), a metal silicon powder (b), a fibrous filler (c), and preferably a release agent (d) and at least one thermally conductive filler (e) selected from the group consisting of a scale-like boron nitride powder (e1) having a hexagonal structure, a coated magnesium oxide powder (e2) coated with a complex oxide of silicon and magnesium and/or a complex oxide of aluminum and magnesium, a high purity magnesite powder (e3) which is a magnesite comprising magnesium carbonate as a main component and has a magnesium carbonate content of from 98 to 99.999% by weight, and graphite (e4).

Polyarylene sulfide composition

PROBLEM TO BE SOLVED: To provide a flame-retardant resin composition having high-level flame retardancy and excellent in processability, mechanical strengths and char-formability at the combustion. SOLUTION: This flame-retardant resin composition comprises 50-99.5 pts.wt. of an olefinic resin (A) such as an ethylene-vinyl acetate copolymer or an ethylene-ethyl acrylate copolymer, 50-0.5 pts.wt. of an alternating copolymer (B) having an average particle diameter of ≤50 μm obtained from a 4C olefin and an α,β-unsaturated dicarboxylic acid anhydride or a derivative thereof [the sum of (A) and (B) is 100 pts.wt.] and 25-300 pts.wt. of an inorganic flame-retardant (C). COPYRIGHT: (C)2004,JPO

Flame-retardant resin composition

The present invention provides a flame-retardant resin composition which has excellent flame retardancy, also has excellent heat resistance including a thermal deformation temperature, and also has excellent processability including a melt viscosity, a handling property and the like. Provided is a flame-retardant synthetic resin composition characterized by comprising 100 parts by mass of a synthetic resin and 0.5 to 20 parts by mass of a mixture of phosphate esters each represented by general formula (1), wherein the content of a phosphate ester represented by general formula (1) wherein n = 1 is 70 to 75 mass% relative to the whole amount of the mixture (wherein the total content of a phosphate ester represented by general formula (1) wherein n is 1, a phosphate ester represented by general formula (1) wherein n is 2, a phosphate ester represented by general formula (1) wherein n is 3, a phosphate ester represented by general formula (1) wherein n is 4 and a phosphate ester represented by general formula (1) wherein n is 5 is 100 mass%).
(In formula (1), R 1 and R 2 independently represent a hydrogen atom or a methyl group; and n represents a numerical value of 1, 2, 3, 4 or 5.)

Flame-retardant synthetic resin composition

PROBLEM TO BE SOLVED: To provide a flame retardant resin composition with excellent productivity for an insulating wire, an optical fiber cable and a molded article having good abrasion resistance, oil resistance and pressure welding properties, without elution of heavy metal compounds or phosphorus compounds from a landfill at disposal, large amount of smoke at incineration and generation of a corrosive gas. SOLUTION: The flame retardant resin composition comprises 100 pts. mass of a thermoplastic resin component (A) and 50-300 pts. mass of a component (B), which are heated and kneaded at a melt temperature of the thermoplastic resin component (A) or higher. The thermoplastic resin component (A) comprises (a) a block copolymer consisting of a vinyl aromatic compound and a conjugated diene and/or a hydrogenated block copolymer obtained by its hydrogenation, (b) a non-aromatic softener for a rubber, (c) ethylene-α-olefin copolymer, and (d) a polypropylene resin. The component (B) comprises (e) 0.01-0.6 pts. mass of an organic peroxide, (f) 0.03-1.8 pts. mass of a (meth)acrylate and/or allylic crosslinking aid, and a metal hydrate.

Flame-retardant resin composition and molded article using the same

Compositions and articles with improved flame properties and fabric with improved melt dripping properties is disclosed. Reduced melt dripping can prevent injuries. Methods for making and using such compositions, articles and fabric are disclosed.

Articles with improved flame retardancy and/or melt dripping properties

PURPOSE:To obtain a compsn. capable of providing a molded product having excellent heat resistance and abrasion resistance while maintaining a flexibility, mechanical properties and a chemical resistance, by blending a polyolefin resin or a rubber with an ionomer resin, an ethylene copolymer, a polymer component and a flame retardant. CONSTITUTION:This compsn. comprises (I) 100 pts.wt. polymer component comprising (A) 5-90wt.% polyolefin resin or rubber, (B) 5-90wt.% ionomer resin and (C) 5-90wt.% ethyulene copolymer having unsatd. carbon-carbon bonds (provided that A+B+C=100wt.%); (II) (D) at least 0.1 pt.wt. polymer component comprising a polyolefin resin or rubber contg. functional groups selected from among (a) to (g) as mentioned below; and (III) 5-200 pts.wt. flame retardant; and, if desired, (IV) 0-20 pts.wt. red phosphorus (provided that the amt. of the functional groups in I+II is 10 to 10 g equivalent per g of all the polymer components). In the functional groups, (a) is a carboxyl group or acid anhydride group; (b) is an epoxy group; (c) is a hydroxyl group; (d) is an amino group; (e) is an alkenyl cyclic imino ether group; (f) is a silane group, and (g) is a titanate group.

Cross-linkable highly flame retardant composition

PROBLEM TO BE SOLVED: To provide a flame-retardant resin material having good operation efficiency by solving problems that terminal treating operation during carrying out wiring is not easily carried out though a resin composition prepared by compounding an inorganic flame retardant such as magnesium hydroxide in place of PVC as a nonpollution type flame-retardant resin composition without generating hydrogen halides having toxicity during combustion is used as a sheath layer or an insulating layer of electric wires/cables, etc. SOLUTION: The flexible flame-retardant resin material is a flame-retardant resin composition composed of 100 pts.mass of a resin component containing at least one kind of an ethylene-α,β-unsaturated carboxylic acid ester copolymer, an ethylene-vinyl ester copolymer and an ultralow-density polyethylene, a flexible material and/or a liquid softener and a functional group-containing olefin polymer and 30-200 pts.mass of the inorganic flame retardant. The flexible flame-retardant resin material has ≤98 kJ/m 2 notched tensile impact strength and ≤150 MPa tensile modulus of a sheet material thereof. COPYRIGHT: (C)2005,JPO&NCIPI

Flexible flame-retardant resin material and electric wire/cable using the same

PROBLEM TO BE SOLVED: To provide a flame-retardant resin article excellent in mechanical strengths, heat resistance, processability and acid resistance and highly resistant to especially surface flawing and whitening. SOLUTION: This resin article is made from a composition comprising 100 pts.wt. resin component consisting mainly of 90-60wt.% copolymer of ehylene with an unsaturated carboxylic acid or its derivative or a vinyl ester and 1-40wt.% olefin polymer modified with an unsaturated carboxylic acid or its derivative, 5-20 pts.wt. inorganic flame retardant comprising magnesium hydroxide or aluminum hydroxide and 0.5-20 pts.wt. flawing and whitening inhibitor comprising and adduct of an alkylene oxide with a compound selected from among higher fatty acids, esters, amides and metal salts thereof, silicones, partial fatty acid esters of polyhydric alcohols, aliphatic alcohols, fatty acids, aliphatic amines, fatty acid amides, alkylphenols and alkylnaphthols. COPYRIGHT: (C)1997,JPO

Flame-retardant resin article excellent in resistance to surface flawing and whitening

PROBLEM TO BE SOLVED: To provide a flame-retardant resin composition which restrains the water content to prevent foaming on molding, and electric wires and cables using the same. SOLUTION: The flame-retardant resin composition comprises at least 100 pts.mass polyolefin resin, 30-200 pts.mass inorganic flame-retardant, and 0.1-10 pts.mass calcium oxide, and improves flame retardance and, simultaneously, prevents foaming when electric wires or cables are molded, and its manufacturing method and its quality control method are disclosed. Furthermore, the electric wires or cables are coated with the flame-retardant resin composition. COPYRIGHT: (C)2004,JPO

Flame-retardant resin composition, its manufacturing method and electric wire and cable

PURPOSE: To provide the titled compsn. which has excellent heat resistance and mechanical and electrical characteristics and is lowly smoking and of non- pollution type, by incorporating a flame retarder in a resin component composed of two ethylene/α-olefin copolymers. CONSTITUTION: 5W200pts.wt. addition type flame retarder (A) such as halogen- contg. compd. (e.g. hexabromobenzene), phosphorus-contg. compd. (e.g. tricresyl phosphate) and inorg. compd. [e.g. Al(OH) 3 ] and optionally Sb 2 O 3 (B) and not more than 100pts.wt. inorg. filler (C) (e.g. CaCO 3 ) are blended with 100pts.wt. resin component (D) consisting of 50W90wt% ethylene/3W12C α-olefin copolymer (a) having a density of 0.86W0.91g/cm 3 , a boiling hexane-insoluble matter content of 10wt% or above and exhibiting the max. peak temp. Tm of 100°C or above as measured with a differential scanning calorimeter and 50W10wt% ethylene/α- olefin copolymer (b) having an MI of 0.05W50g/10min and a density of 0.91W0.97g/cm 3 which is higher than that of component (a). COPYRIGHT: (C)1986,JPO&Japio

Kaneko Satoshi

Papers

Cross-linkable highly flame retardant composition

Flexible flame-retardant resin material and electric wire/cable using the same

Flame-retardant resin article excellent in resistance to surface flawing and whitening

Flame-retardant resin composition, its manufacturing method and electric wire and cable

Flame-retardant ethylene polymer composition having excellent heat resistance