Keil & Weinkauf
Photopolymerizable recording materials and photoresist layers and lithographic printing plates based thereon
 Novel photopolymerizable recording materials suitable in particular for producing photoresist layers and lithographic printing plates are composed of one or more photopolymerizable, olefinically unsaturated organic compounds, optionally a polymeric binder, a photopolymerization initiator, a color-forming system composed of a color former and a photooxidant, a certain 4-phenylpyridine as sensitizer and optionally further additive and/or auxiliary substances. 
BASF Aktiengesellschaft
Y G
Y10S G03F
additional inventional
Andreas Peter Friedrich Reinhard Friedrich-Wilhelm Thomas
Boettcher Neumann Seitz Aldag Raulfs Bluemel