Title:
GI-TYPE OPTICAL FIBER AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2010/095516
Kind Code:
A1
Abstract:
Disclosed is a GI-type optical fiber having excellent transparency and good flexibility and capable of achieving high-speed communication, which utilizes chlorostyrene as a main component of monomers that constitute a core part. Specifically disclosed is a GI-type optical fiber comprising a core part and a clad part arranged around the outer periphery of the core part, wherein the core part comprises a polymer containing a chlorostyrene monomer at a ratio of 55% by weight or more and a dopant and the clad part comprises a polymer of monomers containing methyl methacrylate at a ratio of 35% by weight or more. Also specifically disclosed is a process for producing a GI-type optical fiber utilizing a chlorostyrene polymer in a core part, which involves a step of removing aniline from monomers including chlorostyrene and/or a step of removing dissolved oxygen from monomers including chlorostyrene.
Inventors:
YOSHIDA HIROTSUGU (JP)
OKAMOTO TAZURU (JP)
NAKAO RYOSUKE (JP)
INABE HIROKA (JP)
MASABE YUKI (JP)
KOIKE YASUHIRO (JP)
OKAMOTO TAZURU (JP)
NAKAO RYOSUKE (JP)
INABE HIROKA (JP)
MASABE YUKI (JP)
KOIKE YASUHIRO (JP)
Application Number:
PCT/JP2010/051567
Publication Date:
August 26, 2010
Filing Date:
February 04, 2010
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
UNIV KEIO (JP)
YOSHIDA HIROTSUGU (JP)
OKAMOTO TAZURU (JP)
NAKAO RYOSUKE (JP)
INABE HIROKA (JP)
MASABE YUKI (JP)
KOIKE YASUHIRO (JP)
UNIV KEIO (JP)
YOSHIDA HIROTSUGU (JP)
OKAMOTO TAZURU (JP)
NAKAO RYOSUKE (JP)
INABE HIROKA (JP)
MASABE YUKI (JP)
KOIKE YASUHIRO (JP)
International Classes:
G02B6/00; C08F12/18; C08K5/36; C08K5/521; C08L25/02
Domestic Patent References:
| WO1993008488A1 | 1993-04-29 |
Foreign References:
| JPH08220350A | 1996-08-30 | |||
| JP2008010837A | 2008-01-17 | |||
| JPH08106017A | 1996-04-23 |
Other References:
"Polymer Handbook", JOHN WILEY & SON
TAKAYUKI OHTSU, MASAETSU KINOSHITA, KAGAKU DOJIN: "Experimental Methods for Macromolecular Synthesis", 1972
TAKAYUKI OHTSU, MASAETSU KINOSHITA, KAGAKU DOJIN: "Experimental Methods for Macromolecular Synthesis", 1972
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
fresh green -- a global IP patent business corporation (JP)
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