专利号:US-6384264-B1 优先权日:1997-12-24 标题:Photoactive materials applicable to imaging systems 发明人:DOS SANTOS CRISTIANO MARIA DE; DAVIES JOHN KYNASTON; DOWD SHARON; JOHNSTONE ROBERT ALEXANDER WAL; PRATT MICHAEL JOHN; WADE JOHN ROBERT 权利人:AGFA GEVAERT 摘要:Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.
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