OPTICAL FIBER
    47.
    发明申请

    公开(公告)号:US20210188705A1

    公开(公告)日:2021-06-24

    申请号:US16761300

    申请日:2019-08-21

    发明人: Katsushi HAMAKUBO

    摘要: An optical fiber comprises a glass fiber comprising a core and a cladding, a primary resin layer being in contact with the glass fiber and covering the glass fiber, and a secondary resin layer covering the primary resin layer, wherein the secondary resin layer consists of a cured product of a resin composition comprising a base resin containing a urethane (meth)acrylate oligomer, a monomer, and a photopolymerization initiator and hydrophobic inorganic oxide particles, the content of the inorganic oxide particles is 1% by mass or more and 60% by mass or less based on the total amount of the resin composition, and the glass transition temperature of the secondary resin layer is 60° C. or more and 120° C. or less.