Patent ID: 11919804
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. An optical fiber comprising:
a glass fiber comprising a core and a cladding;
a primary resin layer being in contact with the glass fiber and coating the glass fiber; and
a secondary resin layer coating the primary resin layer,
wherein the secondary resin layer comprises a cured product of a resin composition comprising a photopolymerizable compound comprising urethane (meth)acrylate and a polyrotaxane, and a photopolymerization initiator, wherein a content of the polyrotaxane is 0.05% by mass or more and 11% by mass or less based on a total amount of the photopolymerizable compound.