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1. (WO2017177922) LIQUID CRYSTAL POLYESTER COMPOSITION

Pub. No.:    WO/2017/177922    International Application No.:    PCT/CN2017/080252
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Thu Apr 13 01:59:59 CEST 2017
IPC: C08G 63/60
C08L 67/00
C08K 7/14
C08K 5/098
C08K 3/14
C08K 5/101
Applicants: KINGFA SCI. & TECH.CO., LTD.
金发科技股份有限公司
Inventors: LI, Wenda
李闻达
SUN, Huawei
孙华伟
XIAO, Zhongpeng
肖中鹏
CAO, Min
曹民
LUO, Debing
罗德彬
XU, Bairong
许柏荣
ZHOU, Guangliang
周广亮
JIANG, Sujun
姜苏俊
ZENG, Xiangbin
曾祥斌
HUANG, Xianbo
黄险波
Title: LIQUID CRYSTAL POLYESTER COMPOSITION
Abstract:
Disclosed in the present invention is a liquid crystal polyester composition. The weight content of a metal chromium element ranges from 0.1 ppm to 500 ppm on the basis of the total weight of the liquid crystal polyester composition. The method for measuring the weight content of a metal chromium element comprises: drying a liquid crystal polyester composition in the temperature of 120ºC for 4 hours, taking out 1 g of a sample to be treated, adding nitric acid and hydrogen peroxide, carrying out heating for 2 hours, and continuously adding nitric acid and hydrogen peroxide in the process; and after the dissolution of the sample is completed, taking the dissolved sample, and analyzing the weight content of a metal chromium element by using the 720ES full-automatic inductive coupling plasma atomic emission spectrometer produced by the Agilent company. In the present invention, when the weight content of the metal chromium element added in the liquid crystal polyester composition ranges from 0.1 ppm to 500 ppm on the basis of the total weight of the liquid crystal polyester composition, the high-temperature resistance stability of the obtained liquid crystal polyester composition is unexpectedly and remarkably improved.