发明授权
- 专利标题： Copolymers for optical fibers
- 专利标题（中）： 光纤共聚物
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申请号： US657479申请日： 1984-10-04
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公开(公告)号： US4566755A公开(公告)日： 1986-01-28
- 发明人: Akira Ohmori , Nobuyuki Tomihashi , Takahiro Kitahara
- 申请人： Akira Ohmori , Nobuyuki Tomihashi , Takahiro Kitahara
- 申请人地址： JPX
- 专利权人： Daikin Kogyo Co., Ltd.
- 当前专利权人： Daikin Kogyo Co., Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX57-147405 19820824
- 主分类号： C08F20/00
- IPC分类号： C08F20/00 ; B29C47/00 ; C08F20/02 ; C08F20/10 ; C08F20/22 ; C08F220/00 ; C08F220/04 ; C08F220/06 ; C08F220/22 ; G02B1/04 ; G02B6/00 ; C08F214/18
摘要：
A copolymer for optical fibers of fluoroalkylmethacrylate and methacrylic acid, the fluoroalkylmethacrylate having such properties that a homopolymer made of only the fluoroalkylmethacrylate has a glass transition temperature and a refractive index each in the range given by the following formulae (I) and (II), respectively:(1/Tg).ltoreq.9.47.times.10.sup.-3 -4.556.times.10.sup.-3 n.sup.20 (I)n.sup.20 .ltoreq.1.42 (II)wherein Tg represents the glass transition temperature (.degree.K.) of the homopolymer and n.sup.20 represents the refractive index thereof.
公开/授权文献
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