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. 16, 1997
Filed:
Jun. 19, 1996
Applicant:
Inventor:
Paul Doswald, Munchenstein, CH;
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
534634 ; 534772 ;
Abstract
Fiber-reactive disazo dyes correspond to formula I, ##STR1## and they are present as free acids or in salt form. They are used as reactive dyes for dyeing or printing hydroxy-group-containing or nitrogen-containing organic substrates, especially leather or fibrous material, which consists of or contains natural or synthetic polyamides or natural or regenerated cellulose. The dyeings obtained have high fixation values and good light fastness.