abstract |
A photosensitive composition useful for making a photosensitive lithographic printing plate are made from a condensation product of sulfonylchloride of o-benzoquinone diazide or o-naphthoquinone diazide and a polyhydric phenol resin obtained by condensing a polyhydric phenol such as resorcinol with a benzaldehyde, an acetophenone, or a benzophenone. |