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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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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Publication date
Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Priority to ES0309145ApriorityCriticalpatent/ES309145A2/en
Publication of ES309145A2publicationCriticalpatent/ES309145A2/en
Improvements introduced in the object of the main patent No. 286,043, granted on April 4, 1963, by "Method of preparation of pigment compositions", comprising forming an acid paste with copper phthalocyanine or copper monochloroftalocyanine, with the phthalocyanine copper derivative of formula ** (See formula) ** wherein CuPc represents copper phthalocyanine, A represents hydrogen or an alkyl or hydroxyalkyl radical, D represents an alkyl, cycloalkyl, hydroxyalkyl, aminoalkyl or aralkyl radical, or A and B can be linked together and together represent the atoms necessary to complete a heterocycle containing the nitrogen atom, and m is an integer from 6 to 8. (Machine-translation by Google Translate, not legally binding)
ES0309145A1965-02-091965-02-09Procedure for the preparation of pigmentary compositions. (Machine-translation by Google Translate, not legally binding)
ExpiredES309145A2
(en)