The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1992
Filed:
Dec. 06, 1990
Applicant:
Inventors:
Giorgio Bornengo, Novara, IT;
Giovanni Agnes, Novara, IT;
Augusto Menconi, Crema, IT;
Giorgio Bottaccio, Novara, IT;
Zafferino Bozzolasco, Saliceto, IT;
Danilo Domenis, Saronno, IT;
Assignee:
ACNA Chimica Organica S.P.A., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C09B / ;
U.S. Cl.
CPC ...
540144 ;
Abstract
This invention relates to improved catalytic process for the manufacture of copper phthalocyanine by allowing phthalic anhydride to react with urea and a copper compound, in the presence of a hydrophobic liquid (dispersing agent), characterized by the presence, along with the catalyst and the dispersing agent, of a promoter selected from particular classes of amides, imides, ureas, thioureas, guanidines, amines or sulphoxides.