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:
Mar. 10, 1981
Filed:
Mar. 30, 1979
Applicant:
Inventors:
Ralph R Giles, Kingsport, TN (US);
Max A Weaver, Kingsport, TN (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
260152 ; 260141 ; 260155 ; 260156 ; 260157 ; 260158 ; 260162 ; 260163 ; 260208 ; 2604 / ; 544105 ; 546172 ;
Abstract
Disclosed are azo dyes prepared by diazotizing heterocyclic amines such as 2-aminobenzothiazole, 3-amino-2,1-benzisothiazole, 5-amino-1,2,4-thiadiazole, 5-aminoisothiazole, 5-aminopyrazole, 2-aminothiophene and 2-amino-1,3,4-thiadiazole, followed by coupling with certain aniline, tetrahydroquinoline, or benzomorpholine compounds containing sulfate groups. These amines may be substituted with a large variety of groups including lower alkyl, lower alkoxy, cyano, carbamoyl, sulfamoyl, and halogen. These dyes have excellent dyeing properties on polyamide fibers and also impart color to cellulose acetate fibers and wool.