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:
Jun. 12, 1979
Filed:
Apr. 07, 1978
Applicant:
Inventors:
Johannes Dehnert, Ludwigshafen, DE;
Guenter Dunkelmann, Hassloch, DE;
Assignee:
BASF Aktiengesellschaft, Rheinland-Pfalz, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8 41 / ; 8 21 / ; 8 22 ; 8 39 / ; 8 41 / ; 8 542 ; 8 93 ;
Abstract
Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers in the swollen state with a dye of the formula ##STR1## in which one R is R.sup.1, OR.sup.1, SR.sup.1 or ##STR2## the other R is ##STR3## R.sup.1 and R.sup.2 independently of one another are hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, ##STR4## may also be a saturated heterocyclic radical, and D is the radical of a diazo component. The dyed fibers exhibit very good fastness properties.