Idemitsu Kosan Company, Limited

Idemitsu Petrochemical Co., Ltd.

Kenichi Mitsuhashi

Akio Nodera

Masaru Nakagawa

Hiroshi Kawato

Toshio Isozaki

Yutaka Obata

Yasuhisa Sugita

Takashi Saeki

Hiroki Nakashima

There is here disclosed a resin pellet store device including a silo () in which resin pellets are stored; an discharge route for ON-SPEC products () through which resin pellets having a low content of foreign substances stored above the vicinity of the lowermost part in the silo () are discharged as ON-SPEC products from the silo (); and another discharge route for OFF-SPEC products () through which resin pellets having a high content of foreign substances accumulated in the vicinity of the lowermost part in the silo () are discharged as OFF-SPEC products from the silo (). In consequence, the resin pellets having a high content of foreign substances to be treated as the OFF-SPEC products are clearly sorted out in the silo and discharged therefrom to reduce the content of the foreign substances in the ON-SPEC products. Moreover, the OFF-SPEC products are discharged through another route to avoid the contamination of a downstream facility.

Resin pellet storage apparatus and method of cleaning the same

Provided are a polycarbonate resin composition which does not contain halogen and phosphorus as a flame retardant component and which is excellent in a fluidity while maintaining a flame resistance, a heat resistance and an impact resistance and a molded article thereof.

Polycarbonate resin composition and molded article

Provided are a propylene resin composition comprising 100 parts byweight in total of two different types of propylene polymers each having specific properties, from 0 to 50 parts by weight of a specific elastomer, and from 0 to 50 parts by weight of an inorganic filler; and a method for producing it. The production method comprises melting and kneading two polymer groups each comprising one or more propylene polymers. The resin composition in which the viscosity difference between the propylene homopolymer segments to form the base polymer and the amorphous propylene segments to form the disperse phase is small is produced by first melting and kneading one polymer group, then immediately adding the other polymer group thereto, and further kneading and melting the two. For the composition in which the viscosity difference therebetween is large, the polymer groups are separately kneaded in melt, and the resulting melts are further kneaded. The propylene resin composition has high stiffness, high impact resistance and high fluidity, and its moldings have good appearances.

Propylene resin composition and process for producing the same

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Ichihara, Japan

Kenichi Mitsuhashi