摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要翻译:公开了一种转盘,包括盘形基板和用于接收盘形记录介质的部分。 盘状基板由具有至少1.5×10 10达因/ cm 2的动态剪切模量G',G1'(-40℃)/ G2'(100℃)比例的热塑性复合树脂成形 高达1.5,密度高达2.0g / cm 3,并且接收部分由硬度为5至40的热塑性弹性体形成在基板的顶部上。转盘具有高尺寸精度并将经历减小 翘曲 转盘能够以稳定的方式旋转,以确保读取信息的精度更高。 此外,转盘具有快速的存取时间,并且能够在电源接通之后在更短的时间内获得稳定的转速。
摘要:
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.
摘要:
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).
摘要:
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.
摘要翻译:公开了一种适用于精密电子部件,特别是热塑性工程塑料的滑动部件的树脂化合物的制造方法,其包括(I)包含密度不小于0.92g / cm 3的MI和0.1的MI的含有聚乙烯的碳母料 至30g / 10min,导电炭黑,滑石和(II)热塑性工程塑料。 炭黑令人满意地分散以赋予模制品良好的导热性,从而提供滑动构件,具有很小的磨损和长的耐久性。