| 摘要 |
PROBLEM TO BE SOLVED: To suppress scattering of light in a photosensitive resin compsn. by controlling the difference between the refractive index of a hydrophobic polymer as the main component of a core phase and the refractive index of the mixture of a hydrophobic polymer as the main component of a matrix phase and a non-gaseous ethylene-type unsatd. compd. to not more than a specified value. SOLUTION: This resin compsn. has a phase separation structure which consists of dispersed particles comprising a core phase as the core and a shell phase covering the core, and a matrix phase surrounding the particles. The core phase essentially consists of a noncrosslinking hydrophobic polymer having a glass transition temp of <=5 deg.C. The refractive index of the hydrophobic polymer differs by <=0.010 from the refractive index of the mixture of the hydrophobic polymer as the main component of the matrix phase and a nongaseous ethylene-type unsatd. compd. therefore, scattering of active rays which irradiates the resin is decreased, and as a result, the latitude for exposure is increased and a printed material with a sharp image and excellent printing reproducibility can be obtd. |
