| 摘要 |
PURPOSE:To obtain moderate hardness and rubber elasticity by curing by incorporating specified polyvinyl alcohol, a specified polymerizable monomer and a photopolymn. initiator. CONSTITUTION:This photosensitive resin compsn. contains partially saponified polyvinyl alcohol having 70-99mol.% degree of saponification and 200-2,000 degree of polymn., a polymerizable monomer having a compd. represented by formula I and at least two free hydroxyl groups and a photopolymn. initiator. In the formula I, each of R1, R3 and R4 may be the same or different and is H atom or methyl group, R2 is 1-5C alkylene group having hydroxyl group, R5 is 1-5C alkyl group having hydroxyl group, (n) is an integer of 4-23, (m) is 0 or 1 and (p) is an integer of 1-5. When the photosensitive resin compsn. is used, high rubber elasticity is provided to a cured film formed by exposure. |
