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US09109159B2 Liquid crystalline polyester and production method of the same 有权
液晶聚酯及其生产方法相同

Liquid crystalline polyester and production method of the same
Abstract:
A liquid crystalline polyester having structural units (I), (II), (III), (IV) and (V), wherein a ratio of the structural unit (I) to sum of the structural units (I), (II) and (III) is 68 to 80 mol %, a ratio of the structural unit (II) to sum of the structural units (II) and (III) is 55 to 75 mol %, and a ratio of the structural unit (IV) to sum of the structural units (IV) and (V) is 60 to 85 mol %, wherein a total amount of the structural units (II) and (III) is substantially equimolar with a total amount of the structural units (IV) and (V), and ΔS (entropy of melting) defined by Equation [1] given below is 1.0 to 3.0×10−3 J/g·K:
Abstract(Chinese):

具有结构单元（I），（II），（III），（IV）和（V））的液晶聚酯，其中结构单元（I）与结构单元（I），（II） 和（III）的比例为68〜80摩尔％，结构单元（II）与结构单元（II）和（III）之和的比例为55〜75摩尔％，结构单元（IV） 结构单元（IV）和（V）的总和为60〜85摩尔％，其中结构单元（II）和（III）的总量与结构单元（IV）和（IV）的总量基本上为等摩尔 （V），＆Dgr; S（熔解熵）由下式给出的式[1]定义为1.0〜3.0×10-3J / g·K：

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