| 摘要 |
PROBLEM TO BE SOLVED: To exhibit excellent workability and efficiency, suppress a rise in viscosity of a resin composition and stabilize the subject composition by bringing the resin composition for optical three-dimensional shaping into contact with a basic ceramics adsorbent. SOLUTION: (A) A resin composition for optical three-dimensional shaping comprising (i) a cationic polymerizable organic compound (preferably an aromatic epoxy compound, an alicyclic epoxy compound or the like) and (ii) an energy ray-sensitive cationic polymerization initiator (preferably a double salt, etc., which is an onium salt capable of releasing a Lewis acid by irradiation) is brought into contact with (B) a basic ceramics adsorbent to thereby stabilize the component A. The component B is preferably used in an amount of 0.05-10 pts.wt. based on 100 pts.wt. of the component (i) in the component A. SnO, MgO, MgO-Al2O3, etc., can be cited as the component B and the amount thereof used may be >=0.01 wt.% based on the component (ii).
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