Abstract: A process for producing a resin compound applicable to precise electronic parts, especially sliding member from thermoplastic engineering plastics is disclosed, comprising compounding (I) a carbon masterbatch comprising polyethylene having a density of not less than 0.92 g/cm.sup.3 and an MI of from 0.1 to 30 g/10 min, conductive carbon black, and talc and (II) a thermoplastic engineering plastic. The carbon black is satisfactorily dispersed to impart satisfactory heat conductivity to a molded article to thereby providing a sliding member with little wear and long durability.

Abstract: A method for producing a seamless tube for use as an intermediate image-transfer belt, comprising the step of continuously extruding an electrically conductive composition comprising the following components (a), (b) and (c) to form an unstretched seamless tube having a thickness of 50 to 1000 .mu.m and a sheet resistance of 10.sup.5 to 10.sup.13 .OMEGA./.quadrature.: (a) a thermoplastic aromatic polycarbonate resin, (b) a thermoplastic poly(alkylene terephthalate) resin and (c) acetylene black, the amount of the component (a) being from 60 to 95 wt. % of the total weight of the component (a) and the component (b) the amount of the component (b) being from 40 to 5 wt. % of the total weight of the component (a) and the component (b), and the amount of the component (c) being from 10 to 25 parts by weight for 100 parts by weight of the total amount of the component (a) and the component (b).

Abstract: There is disclosed a polycarbonate composition which comprises having a melt flow rate of 5 to 50 g/10 min and composed of:(a) 30 to 65 parts by weight of a thermoplastic aromatic polycarbonate,(b) 70 to 35 parts by weight of glass fibers with an average diameter of 3 to 15 .mu.m, and(c) 0.01 to 15 parts by weight of at least one component selected from the group consisting of (c-1) to (c-3) shown below formulated therein based on 100 parts by weight of the total amount of (a) and (b):(c-1) 0.3 to 10 parts by weight of a brominated polystyrene with an average particle size of 0.1 to 50 .mu.m;(c-2) 0.3 to 10 parts by weight of zinc sulfide with an average particle size of 0.1 to 50 .mu.m; and(c-3) 0.01 to 5 parts by weight of a melamine-cyanuric acid adduct with an average particle size of 0.1 to 50 .mu.m.

Abstract: There is disclosed a conductive thermoplastic resin composition which comprises:(a) 30 to 86% by weight of a thermoplastic aromatic polycarbonate,(b) 2 to 15% by weight of a high density polyethylene having a density of 0.945 to 0.970 g/cm.sup.3 and a melt flow rate of 0.1 to 30 g/10 min,(c) 5 to 20% by weight of a glass fiber having an average diameter of 3 to 15 .mu.m and an average length of 0.05 to 10 mm,(d) 5 to 20% by weight of a carbon fiber having an average diameter of 3 to 20 .mu.m and an average length of 0.03 to 15 mm, and(e) 2 to 15% by weight of a conductive carbon black.

Abstract: A polyacetal resin composition comprising a polyacetal, a polyolefin, and carbon black dispersed in a special morphology, which is excellent in thermal conductivity, sliding property, moldability, and molding appearance. The composition provides a sliding part for electrical equipments, e.g., gears, bearings, cams, etc., which has excellent sliding properties, makes low noise, and exhitits high abrasion resistance.

Abstract: A turntable comprising a disk-shaped substrate and a portion for receiving a disk-shaped recording medium is disclosed. The disk-shaped substrate is shaped from a thermoplastic composite resin having a dynamic shear modulus, G', of at least 1.5.times.10.sup.10 dyne/cm.sup.2, a G.sub.1 '(-40.degree. C.)/G.sub.2 '(100.degree. C.) ratio of up to 1.5, and a density of up to 2.0 g/cm.sup.3, and the receiving portion is formed on the top of the substrate from a thermoplastic elastomer having a hardness of 5 to 40. The turntable has high dimensional precision and will experience reduced warpage. The turntable is capable of being revolved in a stable manner to ensure an increased precision in reading information. In addition, the turntable has a rapid access time and is capable of attaining a steady speed of revolution in a shorter period of time after the power has been switched on.

Abstract: A resinous resistor made of a blend of a thermoplastic non-polar resin, a thermoplastic polar resin, graphite and carbon black. The volume inherent resistance value of the resistor can be precisely controlled to a predetermined value. The resistor is uniform in resistance.

Abstract: A vinylidene fluoride resin composition is disclosed, comprising a vinylidene fluoride resin, a carbon fiber and a specific granular graphite. The composition can provide a molded article having improved surface evenness and gloss by preventing the sink mark and warpage on the surface thereof.

Abstract: An inorganic filler containing propylene polymer composition which comprises 25 to 90% by weight of component (A) and 75 to 10% by weight of component (B):(A) at least one member selected from the group consisting of(a) a crystalline propylene copolymer composed of propylene and one or more other .alpha.-olefins;(b) a composition prepared by blending the copolymer (a) with a synthetic rubber and/or crystalline polypropylene; and(c) a composition prepared by blending a crystalline polypropylene with a synthetic rubber, wherein(1) the amount of xylene extractable soluble component at 23.degree. C. is 10 to 50% by weight, and(2) the propylene content in the extractable soluble component is 30% by weight or more,(B) an inorganic filler having an average particle size of 200.mu. or less, measured by light transmission in a liquid-phase sedimentation system.

Abstract: An inorganic filler containing propylene polymer composition which comprises 25 to 90% by weight of component (A) and 75 to 10% by weight of component (B):(A) at least one member selected from the group consisting of(a) a crystalline propylene copolymer composed of propylene and one or more other .alpha.-olefins;(b) a composition prepared by blending the copolymer (a) with a synthetic rubber and/or crystalline polypropylene; and(c) a composition prepared by blending a crystalline polypropylene with a synthetic rubber, wherein(1) the amount of xylene extractable soluble component at 23.degree. C. is 10 to 50% by weight, and(2) the propylene content in the extractable soluble component is 30% by weight or more,(b) an inorganic filler having an average particle size of 200.mu. or less, measured by light transmission in a liquid-phase sedimentation system.