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:
Jul. 18, 2008
Applicants:
Craig Michael Bertelsen, Union, KY (US);
Yaqiang Ming, Lexington, KY (US);
Rebecca Beth Silveston-keith, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Inventors:
Craig Michael Bertelsen, Union, KY (US);
Yaqiang Ming, Lexington, KY (US);
Rebecca Beth Silveston-Keith, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Assignee:
Lexmark International, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/04 (2006.01); C09D 11/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides an ink formulation comprising a polymer associated self-dispersed colorant. The polymer has an alkyl amino end functional group that is chemically associated by electron donation/acceptation and hydrogen bonded to surface functional groups of the colorant particles. The modified self-dispersed colorant shows improved printing quality.