Liquid crystal polyester resin compsns. and its moulded products
A resin composition, liquid crystal polyester technology, applied in liquid crystal materials, chemical instruments and methods, etc., can solve the problems of unsuitable industrial production, unable to fully realize reproducibility, unstable performance of hollow spheres, etc.
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[0052] According to the composition shown in Table 1, the following components were pelletized with a twin-screw extruder (PMT 47 manufactured by IKG Corporation) having a cylinder temperature of 400° C. to obtain pellets of a liquid crystal polyester resin composition.
[0053] Liquid crystal polyester resin: Liquid crystal polyester resin (specific gravity 1.38) consists of the above structural units (A 1 ), (B 1 ), (B 2 ) and (C 1 ) in molar ratio (A 1 ): (B 1 ): (B 2 ): (C 1 )=50:23.75:1.25:25 composition, and its flow temperature is 380°C.
[0054] Glass sphere 1: glass sphere with an average particle diameter of 30 µm and a volume hollowness of 76% [trade name: Scoch Light S 60, manufactured by Sumitomo 3M Limited, true specific gravity 0.60, material specific gravity 2.50]
[0055] Glass sphere 2: a glass sphere having an average particle diameter of 40 µm and a volume hollowness of 70% [trade name: CEL-STAR PZ-6000, manufactured by Tokai Kogyo Co. Ltd., true spe...
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