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发明申请
US20090207490A1 Retardation film and polyester resin for optical use 有权
用于光学用途的延迟膜和聚酯树脂

Retardation film and polyester resin for optical use
摘要：
The present invention relates to a retardation film using polyester having a photoelastic coefficient of −40×10−12 Pa−1 to 40×10−12 Pa−1. The present invention also relates to a polyester resin for optical use which contains a phosphorus compound, and an alicyclic component and a fluorene derivative component as constituents, and satisfies the following equations (6) and (7): 100° C.≦glass transition temperature≦150° C.  (6) and 1.0≦(Ma/2+Mb+Mc)/P≦5.0  (7), wherein Ma is the number of moles of an alkali metal element contained in 1 ton of the polyester resin, Mb is the number of moles of an alkaline earth metal element contained in 1 ton of the polyester resin, Mc is the sum of the number of moles of a zinc element (Zn), a cobalt element (Co) and a manganese element (Mn) contained in 1 ton of the polyester resin, and P is the number of moles of a phosphorus element contained in 1 ton of the polyester resin.
摘要（中）：

本发明涉及使用光弹性系数为-40×10-12Pa-1〜40×10-12Pa-1的聚酯的延迟膜。 本发明还涉及含有磷化合物，脂环族成分和芴衍生物成分作为成分的光学用聚酯树脂，并且满足下列等式（6）和（7）：<？在线式 描述=“在线公式”end =“lead”？> 100°C <=玻璃化转变温度<= 150°C（6）<？in-line-formula description =“In-line Formulas”end = “tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？>和<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 1.0 <=（Ma / 2 + Mb + Mc）/ P <= 5.0（7） description =“In-line Formulas”end =“tail”？>其中Ma是1吨聚酯树脂中含有的碱金属元素的摩尔数，Mb是包含在碱性金属元素中的碱金属元素的摩尔数 1吨聚酯树脂，Mc是锌元素（Zn），钴元素（Co）和人的摩尔数之和 1吨聚酯树脂中含有的甘油元素（Mn），P是1吨聚酯树脂中含有的磷元素的摩尔数。

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