| abstract |
Disclosed is a light-sensitive composition containing an o-quinonediazide compound, a novolak resin and a polymer, n characterized in that the polymer contains a constitutional unit selected from the group consisting of constitutional units represented by the formulae (I), (II) and (III):n n n n wherein R 1 to R 12 each represent a hydrogen atom, n an alkyl group or a phenyl group, nand a lithographic printing plate using the same. |