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. 02, 1996
Filed:
Oct. 21, 1994
Patrick D Moore, Pacolet, SC (US);
Michael A Valenti, Taylors, SC (US);
Richard A VanDahm, Spartanburg, SC (US);
Milliken Research Corporation, Spartanburg, SC (US);
Abstract
A coupling component for use in the synthesis of azo colorants, selected from compounds having the formula: ##STR1## wherein R.sub.1 is Y or arylene-(Y).sub.n, where n is an integer from 1-4; R.sub.2 is H, C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.8 cycloalkyl, aryl, or Y; provided that if R.sub.1 is arylene-(Y).sub.n, then R.sub.2 is not aryl; R.sub.3 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, SO.sub.3 H, Br, Cl, OH, or NO.sub.2 and m is an integer from 0-3; and Y is a poly(oxyalkylene) substituent having from 4-200 oxyalkylene units which are the addition products of compounds selected from the group consisting of ethylene oxide and propylene oxide.