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:
Jan. 20, 1976
Filed:
Dec. 19, 1973
Applicant:
Inventors:
Heinrich Hiller, Mannheim, DT;
Wolfgang Jentzsch, Frankenthal, DT;
Alfred Schuhmacher, Ludwigshafen, DT;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen (Rhine), DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 106308 ;
Abstract
Direct production of 1,9-anthrapyrimidine-2-carboxylic acid-1'-anthraquinonylamide in pigmentary form by reaction of 1,9-anthrapyrimidine-2-carboxylic acid chloride with 1-amino-anthraquinone in a polar water-miscible aprotic solvent. The dye is obtained in a high yield and in a very finely divided and pure form. The isolated reaction product may be used direct as a pigment.