| 摘要 |
A positive-working radiation-sensitive mixture and recording material are disclosed. The mixture contains, as essential constituents, a 1,2-quinone diazide and/or a combination of a compound which forms strong acid on exposure to actinic radiation and a compound containing at least one cleavable C-O-C bond and a polymeric binder containing repeating units of formula I (* CHEMICAL STRUCTURE *) I in which R1 is a hydrogen or halogen atom, or a cyanide or an alkyl group, R2, R3 are identical or different and are hydrogen, or alkyl or aryl groups, R4, R5 are identical or different and are and R6 hydrogen or halogen atoms, or alkyl, alkoxy or aryl groups, X represents the atoms necessary to complete a monocyclic or polycyclic carbocyclic aromatic ring system, and is 1, 2 or 3. The mixture yields lithographic plates having high print runs which can be thermally post-cured and which have good resistance to chemicals. The mixture also produces photoresists having good heat resistance.
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