发明公开
EP0302516A2 Optical article made of amorphous thermoplastic polyester resin
失效
Optischer Gegenstand,hergestellt aus thermoplastischem amorphem Polyesterharz。
- 专利标题: Optical article made of amorphous thermoplastic polyester resin
- 专利标题(中): Optischer Gegenstand,hergestellt aus thermoplastischem amorphem Polyesterharz。
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申请号: EP88112796.3申请日: 1988-08-05
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公开(公告)号: EP0302516A2公开(公告)日: 1989-02-08
- 发明人: Yamamoto, Naoki , Mori, Hiroshi , Nakata, Akira
- 申请人: MITSUBISHI RAYON CO., LTD.
- 申请人地址: 3-19, Kyobashi 2-chome Chuo-Ku Tokyo 104 JP
- 专利权人: MITSUBISHI RAYON CO., LTD.
- 当前专利权人: MITSUBISHI RAYON CO., LTD.
- 当前专利权人地址: 3-19, Kyobashi 2-chome Chuo-Ku Tokyo 104 JP
- 代理机构: Bühling, Gerhard, Dipl.-Chem.
- 优先权: JP195260/87 19870806
- 主分类号: G02B1/04
- IPC分类号: G02B1/04 ; G11B7/24 ; C08G63/18
摘要:
An optical article such as optical disk and optical lens, made of an amorphous thermoplastic polyester resin comprised of recurring units, each recurring unit having an aromatic ring in the main chain thereof and an aromatic ring in the side chain thereof. The optical article have a good heat resistance, resistance to absorption of moisture and optical characteristics.
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