| abstract |
(57) [Problem] To provide a photosensitive composition having excellent storage qualities. SOLUTION: In storing a photosensitive composition containing a photopolymerization initiator and a photopolymerizable monomer and / or oligomer under light shielding, the porosity (%) in the void portion of the container and the oxygen partial pressure ( hPa) is 2000 (% ยท h) Pa) A method for preserving a photosensitive composition, wherein the composition is allowed to exist in an atmosphere of at least the above. |