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:
Sep. 13, 1983
Filed:
Jun. 23, 1980
Applicant:
Inventor:
Fridolin Babler, Allschwil, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
546 37 ; 260 / ; 260 4221 ; 260 / ; 260 / ; 260 38 ; 260 / ; 260 / ; 260 / ; 106204 ; 8568 ; 524 90 ;
Abstract
Perylenetetracarboxylic acid-bis-(3,5-dimethylphenyl)imide in a novel .gamma.-modification characterized by an X-ray diffraction spectrum exhibiting very strong lines at interplanar spacings of 8.3, 3.61, 3.46 and 3.30 A, and strong lines at interplanar spacings of 17.2, 10.3, 7.2, 6.7 and 4.09. The pigment is suitable for dyeing high-molecular organic material. Compared with the known yellowish-red modifications, the .gamma.-modification is characterized by a bluish-red shade.