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Patent Searching and Data


Title:
RESIN COMPOSITION, SECONDARY COATING MATERIAL FOR OPTICAL FIBER, OPTICAL FIBER, AND METHOD FOR MANUFACTURING OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2020/255829
Kind Code:
A1
Abstract:
A resin composition according to an embodiment of the present invention comprises a photopolymerization initiator and a photopolymerizable compound that contains urethane (meth)acrylate and polyrotaxane, wherein the content of the polyrotaxane is 0.05 to 11 mass% based on the total amount of the photopolymerizable compound.

Inventors:
HAMAKUBO KATSUSHI (JP)
TOKUDA CHIAKI (JP)
IWAGUCHI NORIAKI (JP)
FUJII TAKASHI (JP)
Application Number:
PCT/JP2020/022886
Publication Date:
December 24, 2020
Filing Date:
June 10, 2020
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C03C25/32; C03C25/1065; C03C25/12; C03C25/285; C03C25/6226; C08F290/06; C08F299/02; G02B6/44
Domestic Patent References:
WO2019026356A12019-02-07
WO2018043512A12018-03-08
Foreign References:
JP2014118319A2014-06-30
JP2012136401A2012-07-19
JP2015199626A2015-11-12
JP2016532254A2016-10-13
JP2019113478A2019-07-11
JP2014219550A2014-11-20
Other References:
See also references of EP 3988514A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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