PHOTO-SETTING RESIN AND METHOD FOR FORMING THREE-DIMENSIONAL SHAPE

摘要

PURPOSE:To obtain the subject resin, containing a liquid optical foaming agent, having a high dimensional accuracy due to small curing shrinkage and residual stress and capable of providing a photo-set product hardly deforming with time and further reducing the weight of a photo-set molding. CONSTITUTION:This resin contains a liquid optical foaming agent [preferably a diazonium salt expressed by the formula (R is an alkyl, H, etc.; X is a halogen), 2,2'-azobisisobutyronitrile, azodicarbonamide, etc.].