| 摘要 |
PURPOSE:To form a photopolymerizable compsn. increased in photosensitivity by adding a combination of benzophenone, a specified aminophenyl ketone, and a specified amino compd. as a photopolymn. initiator to a compsn. contg. a compd. having an ethylenically unsatd. group. CONSTITUTION:The photopolymerizable compsn. contains 10-90wt% compd. (component 1) having >=100 deg.C b.p. at normal pressure, and at least one kind of ethylenically unsatd. group, 2-15wt% benzophenone (component 2), 0.01-5.0wt% compd. represented by formula I, 0.01-1.0wt% compd. (component 4) represented by formula II, and 0-80wt% thermoplastic org. polymer (component 5). Benzophenone (2) in combination with components (3), (4) is essential component, and they can obtain extremely increased photosensitivity, while the storage stability of the photopolymerizable compsn. is retained. As the compd. of component (3), e.g., p,p'-dimethylaminobenzophenone, etc., are used, and as the compd. of component (4), e.g., N-phenylglycine, etc., are used. |
