| 摘要 |
PURPOSE:To obtain the title composition excellent in sensitivity to ultraviolet rays and capable of forming a developable, smooth, nonsticky film on a copper- clad laminate, containing a specified anionic vinyl resin. CONSTITUTION:An unsaturated monomer (A) is obtained by addition- polycondensing 1mol. of an unsaturated monomer (a) having one polymerizable unsaturated group and 1sec amino group in the molecule with 0.01-5mol. of benzoquinonediazidosulfonyl halide and/or a naphthoquinonediazidosulfonyl halide (b) at room temperature to 80 deg.C for 10min-6hr. 5-98wt.% component A is copolymerized with 2-60wt.% at least one unsaturated monomer (B) selected from among carboxyl group-containing, phosphoric acid group-containing and sulfonic acid group-containing unsaturated monomers and 0-90wt.% monoethylenically unsaturated monomer (C) at 30-120 deg.C for 2-20hr in an organic solvent to obtain an anionic vinyl resin. After this resin is neutralized, it is dispersed or dissolved in water. |
