| 摘要 |
The invention describes a developing solvent for layers which are crosslinkable by photopoly- merization and contain a binder based on an elastomeric polymer, a photopolymerizable monomer compatible therewith and a photoinitiator. The developing solvent comprises an aromatic compound of the general formula I wherein R1 to R4 are the same or different and denote hydrogen, (C1-C5) n-alkyl or iso-alkyl and R1 and R2, provided that R1 and R2 are directly adjacent, may also form a cycloaliphatic or aromatic ring having 5 or 6 carbon atoms as ring members which are preferably non-substituted, provided that the sum of carbon atoms of the substituents and ring members is from 9 to 13. Compared with solvents of the prior art, the developing solvent of the present invention is non-toxic, can quickly be removed from the layer, has a high capacity for layer components and is capable of developing plates based on nitrile rubber.
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