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US 12,054,629 B2Granted
Resin composition, optical fiber, and method for manufacturing optical fiber
AssigneeSumitomo Electric Industries, Ltd.
InventorsKatsushi Hamakubo, Kazuyuki Sohma
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Abstract
A resin composition for coating an optical fiber comprises a base resin containing an oligomer, a monomer, and a photopolymerization initiator, and hydrophobic inorganic oxide particles, wherein the oligomer comprises urethane (meth)acrylate and epoxy (meth)acrylate, and the mass ratio of the content of urethane (meth)acrylate to the content of epoxy (meth)acrylate is 0.25 or more.
Claims7
A resin composition for coating an optical fiber, the resin composition comprising:
- a base resin containing an oligomer, a monomer, and a photopolymerization initiator;
- and
- hydrophobic inorganic oxide particles,
- wherein the oligomer comprises urethane (meth)acrylate and epoxy (meth)acrylate, and a mass ratio of a content of the urethane (meth)acrylate to a content of the epoxy (meth)acrylate is 0.25 or more, and
- wherein an amount of heat of reaction when the resin composition is irradiated with ultraviolet rays at an irradiation intensity of 30 mW/cm2 for 300 seconds is 100 J/g or more and 275 J/g or less.
2 more elements
Dependencies are inferred from the claim text.