Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to ES221439ApriorityCriticalpatent/ES221439A1/en
Publication of ES221439A1publicationCriticalpatent/ES221439A1/en
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography
(AREA)
Abstract
Procedure for the preparation of new hydrazone dyes characterized in that diazo compounds accumulate of mononitro-o-aminobenzenes or 1-aminoanthraquinones once or tetrazo compounds of alpha alpha-diaminoanthraquinones bilaterally each time once to bases that respond to the formula ** (See formula) ** or because the diazo compounds are condensed once or the tetrazo compounds bilaterally each time once with salts that respond to the formula ** (See formula) ** for which R1 means the benzene or naphthalene radical condensed with the hetero ring as indicated by the indicator lines valence and a sulfur atom or a group ** See formula) ** using starting materials free of sulfonic acid groups and carboxylic acid groups. (Machine-translation by Google Translate, not legally binding)
ES221439A1955-04-271955-04-27A procedure for the preparation of new hydrazone colors (Machine-translation by Google Translate, not legally binding)
ExpiredES221439A1
(en)
Procedure for the preparation of a photographic chromatic image with the help of color copulators (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of solutions of the polycondensates of acid amidas alquiliden and aralquiliden-bis-tiocarboxºlicos (Machine-translation by Google Translate, not legally binding)