| abstract |
The present invention contains a low-viscosity polyfunctional urethane acrylate oligomer, and the film after UV curing has a low shrinkage and expansion rate after high-temperature immersion, so that the tensile strength, adhesive strength and optical fiber strip force ratio before and after immersion are minimized. The photopolymerizable resin composition and an optical fiber using the same, and the photopolymerizable resin composition according to the present invention comprises a photopolymerizable urethane (meth) acrylate oligomer of 40 to 80% by weight; 10 to 40% by weight of functional urethane acrylate oligomer; 1 to 10% by weight of photoinitiator. [Selection figure] None |