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:
Mar. 16, 1982
Filed:
May. 23, 1980
Applicant:
Inventors:
Konrad Opitz, Liederbach, DE;
Rudolf Schickfluss, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ;
U.S. Cl.
CPC ...
8526 ; 8662 ; 2602075 ; 260208 ;
Abstract
The invention relates to a novel crystallographic modification ('.beta.-modification') being stable under dyeing conditions of the dyestuff of the formula ##STR1## which is characterized by an X-ray diffraction pattern as shown in FIG. 1 with characteristic reflexes at the following glance angles .theta. (CuK.sub..alpha. radiation) with the relative intensities: