| 摘要 |
PURPOSE:To provide a positive photosensitive resin compsn. excellent in compatibility with an alkali-soluble resin and showing excellent stability as a soln. or electrodeposition liquid by incorporating a specified positive photosensitive compd. as the essential component. CONSTITUTION:This positive photosensitive resin compsn. contains (a) quinone diazide phenol resin expressed by formula and (b) alkali-soluble resin as the essential components. In formula, R<1> is an alkyl group of 1-4 carbon number, R<2> is a bivalent hydrocarbon residue having 5-16 carbon number, D1, D2, D3 are hydrogen atoms or quinone diazide units. When a resin having carboxylic acid groups is used as the alkali-soluble resin, the obtd. positive photosensitive resin compsn. is suitable for an electrodeposition coating. Further, the obtd. coating film of this positive photosensitive resin by electrodepostion has excellent adhesion property to a substrate and can be formed into a fine wiring pattern. |
