| 摘要 |
PURPOSE:To obtain a photosensitive composition having superior photosensitivity, giving an insolubilized photosensitive film with high adhesive strength to its substrate, and capable of forming a clear image by blending a dichromate with specified modified polyvinyl alcohol. CONSTITUTION:Modified polyvinyl alcohol contg. units represented by the formula (where R<1> is H or lower alkyl, and R<2> is alkyl) is blended with a dichromate such as ammonium dichromate. The modified polyvinyl alcohol includes a saponification product of a copolymer of N-methoxymethylamide with vinyl acetate. The product contains about 0.01-20mol% said units and about 60- 100mol% saponification degree. The polymn. degree of the copolymer is about 100-6,000. |
