Asahi Kasei Kabushiki Kaisha

Asahi Kasei Chemicals Corporation

Tetsuo Kurihara

Katsushi Watanabe

Hiroshi Kamo

Hiroshi Oyamada

Shunichiro I

Norio Sakata

Yukiyoshi Sasaki

Yasuo Kawaji

A polyamide resin molded body is formed by a resin composition having a (B) fluorine series resin within a range from 1 to 15 parts by mass with respect to 100 parts by mass of a (A) polyamide resin. In the resin composition, the number average particle diameter of the fluorine series resin dispersed in the polyamide resin is 0.8 &#x3bc;m or less. The resin composition includes particles of the (B) fluorine series resin having particle diameters of 0.8 &#x3bc;m or greater. The percentage of particles having particle diameters of 0.8 &#x3bc;m or greater which are secondary particles while maintaining the form of primary particles is 60% or greater, and/or the degree of crystallinity of the dispersed (B) fluorine series resin is 42 J/g or greater.

Polyamide resin molded body

The object is to provide a polyamide resin composition having superior productivity and mechanical strength. A polyamide resin composition includes: (A) Polyamide 66; (B) glass fibers; and (C) a copper compound and a halide. The percentage of a component of the (A) Polyamide 66 having a molecular weight of 30,000 or less as obtained by Gel Permeation Chromatography (GPC) is within a range from 30% by mass to 37% by mass of the total amount of the (A) Polyamide 66, and the percentage of the (A) Polyamide 66 having a molecular weight of 100,000 or greater is within a range from 8% by mass to 15% by mass of the total amount of the (A) Polyamide 66.

Polyamide resin composition, polyamide resin composition pellet group, molded article, and method for producing a polyamide resin composition

(Problem to be Solved) There is provided a reinforced polyamide resin pellet that is excellent in plasticization time stabilization properties during molding and molding appearance stability under molding conditions in long-term continuous molding. (Solution) A reinforced polyamide resin pellet comprising:

Reinforced polyamide resin pellet

It is an object to provide a resin composition in which fluidity is conferred while maintaining the high heat resistance of a highly heat-resistant non-crystalline resin, an amount of foreign matter is greatly reduced, there is no mold deposit, the metering stability is excellent, and the transparency is also good, and a resin composition in which good heat resistance and fluidity are both achieved, the amount of foreign matter is reduced, generation of fines is reduced, and there is no bleeding out. According to the present invention, there is provided a resin composition comprising; (A) a resin component comprising 70 to 100% by weight of at least one resin selected from the group consisting of a polyphenylene ether resin, a polycarbonate resin, a polysulfone resin, a polyethersulfone resin, a polyarylate resin, a polyamide-imide resin, a polyetherimide resin, and a thermoplastic polyimide resin; and (B) an organic compound having a melting point of not less than 200&#xb0; C., the organic compound being from 0.1 to 40 parts by weight based on 100 parts by weight of the resin component (A).

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Tokyo, Japan

Tetsuo Kurihara