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. 20, 1998
Filed:
May. 13, 1996
Raghavan Rajagopalan, Maryland Heights, MO (US);
Ella Y Fung, St. Louis, MO (US);
Other;
Abstract
This invention provides functional dyes of the general formula: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.5 may be the same or different and are selected from the group consisting of hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxyl, hydroxyl, C.sub.1 -C.sub.10 hydroxyalkyl, C.sub.1 -C.sub.10 alkoxyalkyl, C.sub.1 -C.sub.10 aryl, carboxyl, C.sub.1 -C.sub.10 carboxylalkyl, halogen, nitro, C.sub.1 -C.sub.10 alkoxycarbonyl, mercapto, C.sub.1 -C.sub.10 mercaptoalkyl, C.sub.1 -C.sub.10 alkylthio, sulfonate, and --(CH.sub.2).sub.m --N(R.sup.6)(R.sup.7) wherein R.sup.6 and R.sup.7 are independently hydrogen or C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 acyl, and R.sup.6 and R.sup.7 are capable of forming 5, 6, or 7 membered rings which may optionally be substituted with --O--, --NR.sup.8, or --S--; R.sup.3 and R.sup.4 may be the same or different and are selected from the group consisting of C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 hydroxyalkyl, C.sub.1 -C.sub.10 alkoxyalkyl, C.sub.1-C.sub.10 aryl, C.sub.1 -C.sub.10 carboxylalkyl, C.sub.1 -C.sub.10 alkyl sulfonate, mercapto alkyl and --(CH.sub.2).sub.m N(R.sup.6)(R.sup.7); W.sup.1 and W.sup.2 may be the same or different and are selected from the group consisting of --S--, --O--, --Se--, --Te--, --NR.sup.8 and C(R.sup.9)(R.sup.10); and m is about 0-10; R.sup.8 is hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxy, C.sub.1 -C.sub.10 mercaptoalkyl, hydroxyl, C.sub.1 -C.sub.10 hydroxyalkyl, C.sub.1 -C.sub.10 alkoxyalkyl, C.sub.1 -C.sub.10 aryl, C.sub.1 -C.sub.10 carboxylalkyl, C.sub.1 -C.sub.10 alkoxycarbonyl, C.sub.1 -C.sub.10 alkylthio, and --(CH.sub.2).sub.m --N(R.sup.6)(R.sup.7); R.sup.9 and R.sup.10 are independently hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxyl, C.sub.1 -C.sub.10 hydroxyalkyl, C.sub.1 -C.sub.10 alkoxyalkyl, C.sub.1 -C.sub.10 carboxyalkyl, C.sub.1 -C.sub.10 alkoxycarbonyl, and --(CH.sub.2).sub.m --N(R.sup.6)(R.sup.7); and A is selected from the group consisting of --(CH.sub.2).sub.m, --C(R.sup.9)(R.sup.10), --(CH.sub.2).sub.m --N(R.sup.6)(R.sup.7) --O--, --S--, or --NR.sup.8.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile