RADIATION CURABLE CLADDING LAYER FOR POLYMER-CLAD OPTICAL FIBER

摘要

A liquid radiation curable coating composition suitable for use as a cladding layer on an optical fiber is described and claimed. The composition is as follows: (A) a fluorine-containing urethane (meth)acrylate; (B) a compound shown by the following formula (1), CH2=CR1COO(CH2)X(CF2)YX (1) wherein R1 represents a hydrogen atom or a methyl group, X represents a hydrogen atom or a fluorine atom, x represents 1 or 2, and y represents an integer from 2 to 8; (C) (meth)acrylic acid; and (D) a silane coupling agent.