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:
Feb. 21, 2006
Filed:
Jul. 16, 2003
Charles Edward Akers, Jr., Lexington, KY (US);
Sandra Helton Mccain, Lexington, KY (US);
Phillip Wayne Sisk, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Charles Edward Akers, Jr., Lexington, KY (US);
Sandra Helton McCain, Lexington, KY (US);
Phillip Wayne Sisk, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
The present invention provides pigmented inks comprising self-dispersing pigment and an amino-containing compound. The addition of an amino-containing compound to the self-dispersing pigment can improve the reliability and performance of the ink in an inkjet printhead. The present invention also provides methods for making a surface modified pigment comprising associating a self-dispersing pigment with an amino-containing compound having no more than one primary amino group or one secondary amino group.