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:
Jul. 23, 1985
Filed:
Mar. 15, 1983
Max A Weaver, Kingsport, TN (US);
Ralph R Giles, Kingsport, TN (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Disclosed are azo dyes in which the diazo component is a diazotized 3-amino-2,1-benzisothiazole compound bearing one or two sulfo groups, and the coupler is either a 1,2,3,4-tetrahydroquinoline or a 2,3-dihydro-1,4-benzoxazine compound. These dyes exhibit excellent dyeing and fastness properties on polyamide fibers and also impart color to cellulose acetate fibers and wool. The dyes correspond to the general formula: ##STR1## wherein R.sup.5 is 0-3 substituents independently selected from halogen, cyano, alkyl, alkoxy, sulfo, and the like; M is H.sup.+, Na.sup.+, K.sup.+ or the like; and C is the coupler which may be substituted with groups known to the art.