| 摘要 |
PURPOSE:To obtain a photopolymerizable composition which can give a nonyellowing UV-cured membrane excellent in weathering resistance, etc., by mixing a cyclic specified monomer with a crosslinking monomer having a cyclic structure in the molecule, a compound having a surface activity, and a photopolymerization initiator. CONSTITUTION:4-94.4wt.% monomer comprising N-alkyl- and/or N-alkylene- substituted (meth)acrylamides of formulas I and/or II [wherein R1 is H or methyl; R2 is R1 or ethyl; R3 is methyl, ethyl or propyl; A is (CH2)n or (CH2)2O(CH2)2; and (n) is 4-6] is mixed with 5-75wt.% crosslinking monomer having a cyclic structure in the molecule and a mol.wt. of 300 or more, 0.5-15wt.% compound having a surface activity which is an anionic, nonionic, cationic or amphoteric surfactant and 0.1-6wt.% photopolymerization initiator. |
