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. 23, 1987
Filed:
Jun. 05, 1984
Applicant:
Inventors:
Wayne L Cook, Cincinnati, OH (US);
Robert P Huth, Milford, OH (US);
Assignee:
The Hilton-Davis Chemical Co., Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
A23L / ; C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
534883 ; 426250 ; 534884 ; 534887 ;
Abstract
Physiologically acceptable cation salts of (2-alkoxy-4-sulfonyl-5-alkylphenyl)azo-1-hydroxynaphthalene sulfonic acids useful as blue-red colorants for textile fabrics, cellulosic fibers and edible compositions are prepared by diazotizing 2-alkoxy-4-sulfonyl-5-alkylanilines and coupling the resulting diazo compounds to a 1-hydroxynaphthalene mono- or disulfonic acid.