Polyphenylene sulfide resin composition for precision molding



PROBLEM TO BE SOLVED: To obtain the subject composition that is excellent in dimensional accuracy, rigidity, fabricability in, for example, injection molding with extremely reduced burr occurrence on molding and is useful for precision parts as optical pick-up and other optical parts by using a specific resin composition and an inorganic filler as attapulgite and the like. SOLUTION: The objective polyphenylene sulfide resin composition comprises (A) 100 pts.wt. of a resin composition containing (i) 60-95 wt.% of polyphenylene sulfide resin with a melt viscosity of 300-3,000 poise at a shear rate of 500/sec at 300°C, (ii) 5-40 wt.% of a polyphenylene ether resin with a melt viscosity of 5,000-50,000 poise under the same conditions as in (i), (B) 50-200 pts.wt. of an inorganic filler of attapulgite and spherical silica and (C) 10-300 pts.wt. of fibrous filler, other inorganic filler or a mixture thereof where the total amount of the components B and C does not exceed 400 pts.wt. COPYRIGHT: (C)1999,JPO
(57)【要約】 【課題】 寸法精度、剛性が良好で特に成形加工性に優 れ、且つ成形時にバリが発生しないか極めて少ないPP S樹脂組成物を提供する。 【解決手段】 ポリフェニレンサルファイド樹脂60〜 95重量%に対し、ポリフェニレンエーテル樹脂を5〜 40重量%配合してなる樹脂組成物、(b)アタパルジ ャイト、球状シリカよりなる無機充填材、(c)繊維状 充填材、その他の無機充填材又はその混合物よりなるポ リフェニレンサルファイド樹脂組成物である。




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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    FR-2812298-A1February 01, 2002Rhodia Chimie SaUtilisation d'attapulgite comme charge dans des compositions de polymeres
    WO-0198397-A3February 28, 2002Rhodia Chimie Sa, Laurence Stelandre, Michel Foulon, Le Goff Pierre YvesUtilisation d'attapulgite comme charge dans des compositions de polymeres