A SOLVENT-FREE, RADIATION-CURABLE, OPTICAL GLASS FIBER COATING COMPOSITION AND SOLVENT-FREE METHOD FOR MAKING A SOLVENT-FREE, RADIATION-CURABLE, OPTICAL GLASS FIBER COATING COMPOSITION

摘要

The invention relates to a solvent-free radiation-curable, optical glass fiber coating composition containing: a) a urethane oligomer having a functional group capable of polymerization in the presence of actinic radiation, with an average functionality of at least about 1.2, having a vinyl addition polymer as backbone; b) a urethane compound having a functional group capable of polymerization in the presence of actinic radiation, with an average functionality of at least about 1, containing an organic moiety having about 5 or more carbon atoms as backbone; c) a reactive diluent. Furthermore, the invention relates to a solvent-free method for producing a solvent-free, radiation curable urethane oligomer composition.