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:
May. 06, 1980
Filed:
Mar. 20, 1978
Applicant:
Inventors:
Erich Feess, Hofheim am Taunus, DE;
Hartmut Springer, Konigstein, DE;
Paul Karacsonyi, Frankfurt am Main, DE;
Willy Gronen, Schollkrippen, DE;
Horst Curtius, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ;
U.S. Cl.
CPC ...
8543 ; 8661 ;
Abstract
Azo developing dyestuffs are produced by diazotizing on the fiber a mono- to tetramine derived from a metal-containing or metal-free phthalocyanine, the amino group(s) being bound to a phenyl or naphthyl group (which may be substituted) which is linked via a bridge member to the phthalocyanine which may further contain up to 3 optionally substituted sulfon amide groups and up to 3 sulfo groups, and coupling said diazotized amino onto azoic coupling components usual for preparing developing dyestuffs.