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:
Nov. 06, 1990
Filed:
Dec. 19, 1989
Applicant:
Inventors:
Dieter Wiegner, Odenthal, DE;
Wolf-Dieter Elsner, Burscheid, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8639 ; 8691 ; 8921 ; 8922 ; 8924 ;
Abstract
Mixtures of at least two different dyestuffs of the formulae ##STR1## in which the symbols have the meanings mentioned in the text represent a low-priced replacement for the known anthraquinone dyestuff Disperse Red 60. In the dyeing of mixed yarn, they are even superior with respect to sublimation fastness and cotton staining.