发明名称 |
Plastic optical fiber, optical fiber cable, optical fiber cable with plug, method for producing methyl methacrylate based polymer and method for producing plastic optical fiber |
摘要 |
This invention provides a process for manufacturing a methyl methacrylate polymer comprising the steps of feeding a monomer containing at least 80 wt % of methyl methacrylate and a radical polymerization initiator represented formula (III) to a reactor; polymerizing the material at a polymerization temperature of 110 to 160° C. under the conditions satisfying particular equations between an initiator concentration and a polymerization temperature; feeding a reaction mixture taken out from the reactor to a devolatilization step (feeding step); and separating and removing volatiles from the reaction mixture (devolatilization step). A methyl methacrylate polymer having adequately good optical properties and a plastic optical fiber having improved transmission performance can be prepared according to this invention.
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申请公布号 |
US6777083(B1) |
申请公布日期 |
2004.08.17 |
申请号 |
US20000622057 |
申请日期 |
2000.10.12 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
MIZOTA HIROTOSHI;MURAKAMI TOMONARI;UOZU YOSHIHIRO;SASAKI SHIGEAKI;ISHIZAKA KOJI;KITAYAMA TAKESHI;TAKAYANAGI TATSUYUKI;ATARASHI JUN-ICHIRO;YOSHIDA YASUKAZU;YANAI MASAHARU;OH-KITA MOTOMU |
分类号 |
C08F4/04;C08F20/14;(IPC1-7):D02G3/00;D02G27/34;G02B6/04;C08G63/48;C08L63/91;C08L47/00 |
主分类号 |
C08F4/04 |
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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