| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid curable resin composition which can give high n value primary coated optical fibers and has high-speed curability and high storage stability. <P>SOLUTION: The liquid curable resin composition is one comprising (A) urethane (meth)acrylate, (B) a cyclic N-vinyl compound, (C) an ethylenically unsaturated compound other than (A) and (B), and (D) a photopolymerization initiator, wherein the composition has an acid number of 0.05 mgKOH/g or smaller and an amine number of 0.01 mgKOH/g or smaller. <P>COPYRIGHT: (C)2007,JPO&INPIT |
