ULTRAVIOLET RAY-CURING TYPE COMPOSITION FOR OPTICAL FIBER COATING

摘要

PURPOSE: To obtain an ultraviolet ray-curing type composition for providing an optical fiber having jelly resistance and low water absorption. CONSTITUTION: This ultraviolet ray-curing type composition for optical fiber coating contains (A) a polyesterurethane acrylate, (B) an acrylic acid ester expressed by the formula [R1 is hydrogen atom or an alkyl group; R2 is propylene group or butylene group; (n) is an integer of 1-6] and (C) a photopolymerization initiator.