CURABLE LIQUID RESIN COMPOSITION

摘要

A curable liquid resin composition comprising: (A) a urethane (meth)acrylate having a structure derived from polypropylene glycol with a number average molecular weight of about 4,000 or less; (B) a urethane (meth)acrylate having a structure derived from a polypropylene glycol with a number average molecular weight of more then about 4000; (C) a (meth)acrylate monomer; and (D) a polymerization initiator; wherein from about 50 to about 80 mass% of the component (C) is 2-ethylhexyl (meth)acrylate, and from about 50 to about 90 mass% of the component (D) is 1-hydroxycyclohexyl phenyl ketone is described and claimed. This composition, when cured, provides a cured product having low self- adhesiveness and a high stress relaxation rate. The composition is suitable for use as a Secondary Coating or as a Matrix Coating for Optical Fibers.