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:
Jan. 04, 1977
Filed:
Oct. 24, 1975
Richard B Orelup, Upper Saddle River, NJ (US);
Morton-Norwich Products, Inc., Chicago, IL (US);
Abstract
Azo dyes which are highly soluble in petroleum fuels. The dyes have the general formula ##STR1## where R.sub.1, R.sub. 2, R.sub. 3, and R.sub.4 are each H or CH.sub. 3 and R.sub. 5 is either 2-ethylhexyl or 2-ethylhexyloxypropyl. When R.sub. 5 is 2-ethylhexyl, then at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is CH.sub.3. When R.sub.5 is 2-ethylhexyloxypropyl, then each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is H, or at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is CH.sub.3 provided that R.sub.1 and R.sub.3 are not both CH.sub.3 at the same time that R.sub.2 and R.sub.4 are each H, and provided that R.sub.2 and R.sub.4 are not both CH.sub.3 at the same time that R.sub.1 and R.sub.3 are both H.