Toray Industries, Inc.

Toshio Kurematsu

Hideyuki Umetsu

Toshihide Inoue

Kiyokazu Nakamura

Kunihiko Miyauchi

Hiroki Hiraoka

Miki Sakai

A manufacturing apparatus for liquid crystalline polyester resin pellets that is provided with: a die head with a discharge port for discharging melted liquid crystalline polyester resin supplied to the die head from a reactor through a valve; a cutter for cutting the resin discharged from the die head and solidified; and at least one perforated plate located downstream of the valve and upstream of the discharge port. The hole diameters of a plurality of die holes provided in the discharge port are 3 mm-6 mm and the average hole diameter in the perforated plate is 0.1-1.2 times the hole diameter of the die holes. A manufacturing method for liquid crystalline polyester resin pellets for cutting liquid crystalline polyester resin, which has been discharged from the die head of said apparatus via the discharge port so as to form groups of strands and solidified, into pellet form. Provided is a manufacturing method for liquid crystalline polyester resin pellets, the method having excellent discharge stability and being able to improve productivity of continuous batch polymerization and pellet quality in the step for discharging the melted resin as groups of strands.

Manufacturing apparatus and manufacturing method for liquid crystalline polyester resin pellets

Disclosed herein is a liquid crystalline resin compound which includes about 100 pbw of liquid crystalline resin and about 5-200 pbw of inorganic filler, the liquid crystalline resin being composed of about 99.5-50 wt % of partially aromatic liquid crystalline polyester resin and about 0.5-50 wt % of wholly aromatic liquid crystalline polyester resin, and the inorganic filler having an average aspect ratio in the range of 3 to 25. Also disclosed is a molded article of liquid crystalline resin obtained by molding from the liquid crystalline resin compound. The resin compound is superior in flowability and the molded article has good mechanical properties, especially balanced rigidity and toughness.

Liquid crystalline resin compound and moldings thereof

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Nagoya, Japan

Toshio Kurematsu