Improvements in or relating to Photographic Development

• Main Authors: GEORGE FRANS VAN VEELEN, JOZEF FRANS WILLEMS
• Format: Patent
• Language: English
• Published: 13.05.1970
• Subjects: AUXILIARY PROCESSES IN PHOTOGRAPHY; CHEMISTRY; CINEMATOGRAPHY; ELECTROGRAPHY; HETEROCYCLIC COMPOUNDS; HOLOGRAPHY; METALLURGY; ORGANIC CHEMISTRY; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS

1,191,535. Quinoline derivatives. GEVAERTAGFA N.V. 3 May, 1968 [24 May, 1967], No. 24191/67. Heading C2C. [Also in Division G2] 6 - Diethylamino - 1:2:3:4 - tetrahydroquinoline dihydrochloride is made by hydrogenation of 6-diethylamino-quinoline with H 2 / Ni and then treating the product with HCl....