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:
Feb. 06, 1990
Filed:
Oct. 27, 1988
Applicant:
Inventors:
Gunther Schwaiger, Frankfurt am Main, DE;
Hartmut Springer, Konigstein/Taunus, DE;
Walter Helmling, Hofheim am Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
544337 ; 2605 / ; 544366 ; 544398 ; 544400 ; 544401 ; 548113 ; 548260 ; 548261 ; 558 22 ; 558 29 ; 558 30 ; 558162 ; 558164 ; 558169 ; 558175 ; 560 14 ; 560100 ; 560107 ; 560254 ; 560255 ; 560308 ; 562430 ; 562 42 ; 562 43 ; 564282 ; 564284 ; 564285 ; 564287 ; 564340 ; 564341 ; 564430 ; 564434 ; 564440 ; 568 29 ; 568 30 ;
Abstract
Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which contains in the beta-position a substituent which can be eliminated by an alkali;