| abstract |
The present invention provides an alkali-soluble polymer comprising a specific vinyl ketone phenol and a derivative thereof as a radical polymerizable monomer, and a positive photosensitive resin composition containing the alkali-soluble polymer and a photosensitive agent. ADVANTAGE OF THE INVENTION According to this invention, alkali-soluble resin which is excellent in high solvent resistance, high water resistance, high acid resistance, high alkali resistance, high heat resistance, high transparency, adhesiveness with a base, etc., and is useful for formation of the patterned resin film obtained by developing in alkaline aqueous solution, and A positive photosensitive resin composition containing this can be provided. |