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:
May. 29, 2012
Filed:
Feb. 12, 2008
Thomas B. Brust, Webster, NY (US);
Michael J. Carmody, Webster, NY (US);
Robert H. Fehnel, Rochester, NY (US);
Gary L. House, Victor, NY (US);
Mark E. Irving, Rochester, NY (US);
Yongcai Wang, Webster, NY (US);
Paul D. Yacobucci, Rochester, NY (US);
Thomas B. Brust, Webster, NY (US);
Michael J. Carmody, Webster, NY (US);
Robert H. Fehnel, Rochester, NY (US);
Gary L. House, Victor, NY (US);
Mark E. Irving, Rochester, NY (US);
Yongcai Wang, Webster, NY (US);
Paul D. Yacobucci, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An ink composition comprising (a) water, (b) pigment particles, (c) at least one humectant, (d) at least one polyurethane having an average molecular weight of at least about 10,000 and a sufficient number of acid groups to provide an acid number from 60 to about 130, and being present at a weight concentration of greater than 0.7%, and (e) at least one water soluble acrylic polymer comprising carboxylic acid groups, present at a weight concentration of greater than 0.6%, wherein the acid groups on the polyurethane and acrylic polymers are at least partially neutralized only with a monovalent inorganic base.