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Title:
METHOD FOR PRODUCING PLASTIC OPTICAL FIBER AND APPARATUS FOR PRODUCING PLASTIC OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2023/054140
Kind Code:
A1
Abstract:
The present invention provides a technology which enables further quality improvement of a plastic optical fiber. The technology is a method for producing a plastic optical fiber that is composed of a core and a plurality of layers including a cladding; this production method comprises formation of at least one layer that is selected from among the plurality of layers by means of melt extrusion molding that uses a melt extrusion mechanism; and the water content of a starting material resin of the at least one layer is controlled to 400 ppm or less (on a mass basis) at the time when the starting material resin is supplied to the melt extrusion mechanism.

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Inventors:
IRIE SHO (JP)
ARAKI TATSUYA (JP)
Application Number:
PCT/JP2022/035273
Publication Date:
April 06, 2023
Filing Date:
September 21, 2022
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
B29B13/08; B29C48/05; B29C48/21; B29C48/285; G02B6/02
Foreign References:
JP2007517235A2007-06-28
JPH0592422A1993-04-16
JP2006163031A2006-06-22
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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