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Title:
RESIN COMPOSITION, OPTICAL FIBER, AND METHOD FOR PRODUCING OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2022/074914
Kind Code:
A1
Abstract:
This resin composition for primary cladding of an optical fiber comprises a photopolymerizable compound and a photoinitiator, wherein the photopolymerizable compound contains a urethane oligomer and an N-vinyl compound represented by formula (I). In the formula, R represents a C1-C5 alkyl group.

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Inventors:
HOMMA YUYA (JP)
Application Number:
PCT/JP2021/028645
Publication Date:
April 14, 2022
Filing Date:
August 02, 2021
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C03C25/326; C03C25/6226; C08F290/06; C08G18/67; G02B6/44
Domestic Patent References:
WO2019159977A12019-08-22
Foreign References:
JP2002338640A2002-11-27
JP2017141126A2017-08-17
JP2001302742A2001-10-31
JP2020168366A2020-10-15
Other References:
See also references of EP 4227278A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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