Verfahren zur Herstellung eines lagerfähigen, lichtempfindlichen, für die Herstellung von Reproduktionen auf photomechanischem Wege geeigneten Materials

摘要

1,127,996. Naphthoquinone diazide sulphonic ester. KALLE A.G. 25 July, 1967 [27 July, 1966], No.34166/67. Heading C2C. [Also in Division G2] The invention comprises 1,2-naphthoquinonediazide - (2) - 4 - sulphonic acid cumyl phenol ester and a process for the preparation thereof, wherein 1,2 - naphthoquinone - diazide - (2)-4- sulphoohloride is condensed with cumyl phenol. The product is employed in light-sensitive reproduction material, e.g. in the production of printing plates and printed circuits.