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. 16, 1992
Filed:
Feb. 23, 1990
Applicant:
Inventor:
Reinhard Pedrazzi, Allschwil, CH;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
544 76 ; 534617 ; 534618 ; 534619 ; 534624 ; 534625 ; 534628 ; 534634 ; 534635 ; 540126 ; 8527 ; 8549 ;
Abstract
Sulpho group-containing dioxazine compounds corresponding to the formula ##STR1## in which the symbols are as defined in the specification, and salts thereof as well as dyeing preparations thereof are useful for dyeing or printing hydroxy group- or nitrogen-containing organic substrates, optionally combined with a special after-treatment of the dyed or printed textiles thus obtained to improve their wet fastness properties. Most preferred substrates are textile material containing or consisting of cellulose and paper.