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:
Mar. 23, 2010
Filed:
Sep. 18, 2007
Charles Edward Akers, Jr., Lexington, KY (US);
Michael James Bensing, Lexington, KY (US);
Rahel Bekru Bogale, Lexington, KY (US);
Xiaorong Cai, Lexington, KY (US);
Jun LI, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Qi Yin, Lexington, KY (US);
Charles Edward Akers, Jr., Lexington, KY (US);
Michael James Bensing, Lexington, KY (US);
Rahel Bekru Bogale, Lexington, KY (US);
Xiaorong Cai, Lexington, KY (US);
Jun Li, Lexington, KY (US);
Jing X. Sun, Lexington, KY (US);
Qi Yin, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
The present invention provides a pigment ink formulation containing a wax emulsion is disclosed. The wax emulsion comprises a specific wax and surfactant combination. In particular, the wax comprises a linear polyethylene wax and the surfactant is an alkyl ether carboxylate. The wax emulsion can be made by any process for preparing emulsions used by those skilled in the art such as typical homogenization methods. Applicants have discovered that such a wax emulsion can not only improve the scratch resistance of pigmented ink, but also improve other handling problems such as scuff and smear.