Resin composition, secondary coating material for optical fiber, and optical fiber
AssigneeSumitomo Electric Industries, Ltd.
InventorsKatsushi Hamakubo, Yuya Homma
Life of this patent
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Abstract
A resin composition comprises a base resin containing an urethane (meth)acrylate oligomer, a monomer having a phenoxy group, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein the viscosity is 300 mPa·s or more and 4200 mPa·s or less at 45° C. and the content of the monomer having a phenoxy group is 1% by mass or more and 30% by mass or less based on the total amount of the base resin.
Claims9
A resin composition comprising a base resin containing a urethane (meth)acrylate oligomer, a monomer having a phenoxy group, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein
- a viscosity is 300 mPa·s or more and 4200 mPa·s or less at 45° C.,
- a content of the monomer having a phenoxy group is 1% by mass or more and 30% by mass or less based on the total amount of the base resin
- the resin composition is used to form a secondary resin layer of an optical fiber, and
- the Young's modulus of a cured product of the resin composition is 1300 to 2600 MPa at 23° C.
Dependencies are inferred from the claim text.