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. 01, 1991
Filed:
Sep. 21, 1989
Edward W Kluger, Pauline, SC (US);
John W Rekers, Spartanburg, SC (US);
Judy A Wagner, Taylors, SC (US);
Milliken Research Corporation, Spartanburg, SC (US);
Abstract
A washable ink composition is provided which is an aqueous mixture containing water soluble, ester-terminated, poly(alkyleneoxy)-substituted methine colorant of the formula: ##STR1## wherein: AR is an unsubstituted or substituted aromatic or hetero-aromatic group; X is nitrogen or oxygen; R is unsubstituted or substituted straight or branched alkylene of 2-4 carbons or mixtures thereof; R.sub.1 is H or an unsubstituted or substituted alkyl, cycloalkyl or phenyl moiety containing one to about 10 carbons, or a group of the formula: ##STR2## wherein: R.sub.3 is H or alkyl of one to about ten carbons, and d is zero when X is oxygen and one when X is nitrogen; R.sub.2 is hydrogen or alkyl of one to about five carbons; a and b are each an integer independently selected from one to about forty wherein a+b is an integer of from about 6 to about 80; and Z is a divalent vinylic carbon atom which is covalently bonded to a group or moiety including any of cyano, vinyl carbon, sulfide, sulfoxide, sulfone, allylic oxygen, thiocyano, or carbonyl which is not part of an amide, carboxylic acid or carboxylic acid salt moiety.