| 摘要 |
PURPOSE: To obtain a photopolymerizing polymer free from the generation of fogging and swelling even in the case of wider developing limit as a recording material and larger film thickness and capable of being more excellently stuck to a supporting body. CONSTITUTION: A photosensitive cross-linking polymer made of the imidyl compound expressed by formula I and a copolymer of the imidyl compound and an ethylenic unsaturated comonomer are used. In formula I, R<1> and R<2> express individually a 1-4C alkyl group or express a tri- or tetramethylene group unsubstituted or substituted by a 1-4C alkyl group by joining together. And R<3> expresses hydrogen atom or a 1-4C alkyl group, (n) expresses 2-30 and X expresses hydrogen atom or CO-CR<4> =CH2 (R<4> expresses hydrogen atom or methyl group). |
