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. 23, 1983
Filed:
Sep. 14, 1981
Applicant:
Inventors:
Fred Walkow, Wolfen, DD;
Peter Czerney, Weimar, DD;
Horst Hartmann, Dresden, DD;
Jorg Marx, Dessau, DD;
Assignee:
VEB Filmfabrik Wolfen, Wolfen, DD;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; C07C / ;
U.S. Cl.
CPC ...
430157 ; 260141 ; 430141 ; 430146 ; 430150 ; 430163 ; 430171 ; 430173 ; 430176 ; 430177 ; 430180 ; 430182 ; 430183 ; 430186 ;
Abstract
It is the purpose and object of the present invention to make better use of the emission range of light sources and to create the diazonium salts necessary for such purpose. The diazonium salts of the present invention of the general formula ##STR1## wherein Y is ##STR2## R.sub.1, R.sub.2 are equal or different and are, alkyl having 1 to 10 carbon atoms, aryl having 6 to 10 carbon atoms in a mono or polycylic ring;