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US 5,723,253 AGranted
Light-sensitive composition and light-sensitive lithographic printing plate containing o-quinonediazide compound, novolak resin, polymer and enclosure compound
AssigneesKonica Corporation, Mitsubishi Chemical Corporation
InventorsKatuhiko Higashino, Tomohisa Ohta, Shinichi Matsubara
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Abstract
Disclosed is a light-sensitive composition containing an o-quinonediazide compound, a novolak resin and a polymer, 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): ##STR1## wherein R.sup.1 to R.sup.12 each represent a hydrogen atom, an alkyl group or a phenyl group, and a lithographic printing plate using the same.
Claims15
A light-sensitive composition containing an o-quinonediazide compound, a novolak resin and a polymer,
- characterized in that the polymer contains 3 to 40 mole % of a constitutional unit selected from the group consisting of constitutional units represented by the formulae (I), (II) and (III):
- ##STR28## wherein R.sup.1 to R.sup.12 each represent a hydrogen atom, an alkyl group or a phenyl group;
- and the composition further comprises an enclosure compound which acts as a host compound capable of taking a chemical species therein as a guest compound.
Dependencies are inferred from the claim text.