发明名称 |
Polyester resin, polyester resin composition, and sheet, film and hollow molded container obtained therefrom |
摘要 |
To provide a polyester resin particularly useful in application to optical films, etc. A polyester resin which is an alicyclic polyester comprising dicarboxylic acid units and diol units, characterized by the following (1) to (4): (1) the dicarboxylic acid units are composed mainly of 1,4-cyclohexanedicarboxylic acid units, (2) the diol units are composed mainly of 1,4-cyclohexanedimethanol units, (3) the ratio of alkyl ester terminals to all terminals of the polyester is at most 5 mol %, and (4) the light transmittance of a molded plate of the resin having a thickness of 2 mm is at least 87%.
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申请公布号 |
US2005197484(A1) |
申请公布日期 |
2005.09.08 |
申请号 |
US20050115104 |
申请日期 |
2005.04.27 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
TANAKA TOMOHIKO;KASAI ATSUSHI |
分类号 |
C08G63/02;C08G63/199;C08J5/18;C08L67/02;C08L69/00;(IPC1-7):C08G63/02 |
主分类号 |
C08G63/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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