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:
Dec. 29, 1992
Filed:
Feb. 14, 1991
Applicant:
Inventor:
Ludwig Schlafer, Kelkheim, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
534638 ; 534632 ;
Abstract
Azo compounds with fiber-reactive dye properties, having defined general formula (1) below, are described which dye fiber materials containing hydroxy and/or carboxamide groups, such as synthetic polyamide fibers or wool, and especially cellulose fiber materials such as cotton, in strong, fast, predominantly red shades. ##STR1## in which: X is vinyl or .beta.-sulfatoethyl;