ES240947A1 - Procedure for the preparation of new ftalocianin colorants (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of new ftalocianin colorants (Machine-translation by Google Translate, not legally binding)
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.)
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Novartis AG
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Ciba Geigy AG
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Priority to ES0240947ApriorityCriticalpatent/ES240947A1/en
Publication of ES240947A1publicationCriticalpatent/ES240947A1/en
Process for the preparation of water-soluble phthalocyanine dyes, characterized in that it is converted into phthalocyanine acids -3,4 ", 4" '", 4"' "'' '- or-4,4", 4' '' ', 4' '' '' '- sulfonics to at least one sulfonic acid group in a sulphonic acid amide group, the nitrogen atom of which carries a stylo radical having a halogen atom, or an oxysulfonyl group in beta position and in that the starting materials are selected in such a way that after the eventual saponification of sulfonic acid halide groups present in free sulphonic acid groups, the phthalocyaninsulfonic acid amides formed contain at least one, and preferably more than a hydrosolvent group. (Machine-translation by Google Translate, not legally binding)
ES0240947A1958-03-241958-03-24Procedure for the preparation of new ftalocianin colorants (Machine-translation by Google Translate, not legally binding)
ExpiredES240947A1
(en)
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