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US 9,488,774 B2Granted
Primary optical fiber coating composition containing non-radiation curable component
AssigneeCorning Incorporated
InventorsDana Craig Bookbinder, Kevin Robert McCarthy, Weijun Niu, David Neal Schissel
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Abstract
An optical fiber is disclosed that includes a primary coating formed from a radiation curable composition that includes a curable cross-linker essentially free of urethane and urea functional groups, a curable diluent, and a non-radiation curable component comprising (thio)urethane and/or (thio)urea groups. The primary coating features low Young's modulus, low Tg, and high tensile strength. The optical fiber exhibits low microbend losses in wire mesh drum and basketweave tests.
Claims20
A coated optical fiber comprising:
- a glass fiber;
- and
- a primary coating surrounding said glass fiber, said primary coating including the cured product of a radiation-curable composition comprising:
- a first radiation-curable component;
- and
- a non-radiation-curable component, said non-radiation-curable
- component including (thio)urethane and/or (thio)urea groups;
- wherein said primary coating has an in situ Young's modulus of less than 1 MPa.
5 more elements
Dependencies are inferred from the claim text.