Process for producing optical fiber for optical transmission
AssigneeSumitomo Electric Industries, Ltd.
InventorsShoji Nagasaki, Keiichi Kojima, Keiji Ueno
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Abstract
A process for producing an optical fiber comprising forming a primary coating layer on a glass fiber, forming a secondary coating layer comprising a polyamide resin or polyester elastomer composition containing a polyfunctional monomer as a crosslinking agent and a lead compound as a radiation-shielding material on the primary coating layer, and crosslinking the secondary coating layer by irradiation with electron rays having a maximum transmittance thickness smaller than the total thickness of the primary and secondary coating layers is disclosed. The resulting optical fiber has excellent heat resistant without causing optical transmission loss.
Claims9
A process for producing an optical fiber for optical transmission, which comprises forming a primary coating layer on a glass fiber, forming a secondary coating layer comprising a polyamide resin composition or polyester elastomer composition containing a polyfunctional monomer and a lead compound on the primary coating layer, and crosslinking the secondary coating layer by irradiation with electron rays having a maximum transmittance thickness smaller than the total thickness of the primary coating layer and the secondary coating layer.
Dependencies are inferred from the claim text.