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. 02, 2018
Filed:
Mar. 31, 2016
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventor:
Doris Pik-Yiu Chun, Santa Clara, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/12 (2006.01); G03G 9/125 (2006.01); G03G 9/13 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09B 67/46 (2006.01); C09B 67/00 (2006.01); C09D 17/00 (2006.01);
U.S. Cl.
CPC ...
G03G 9/122 (2013.01); C09B 67/009 (2013.01); C09B 67/0086 (2013.01); C09B 67/0088 (2013.01); C09B 67/0098 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 17/004 (2013.01); G03G 9/0804 (2013.01); G03G 9/12 (2013.01); G03G 9/125 (2013.01); G03G 9/13 (2013.01);
Abstract
A method of making a liquid electrophotographic (LEP) paste is disclosed herein. A base paste is made by forming a dispersion of a pigment and a non-polar carrier, adding a transparent resin dispersion to the pigment dispersion to form a dispersion mixture, and homogenizing the dispersion mixture. The transparent resin dispersion includes a polymer dispersed in a non-aqueous carrier. The homogenizing may be accomplished by agitating the dispersion mixture at a frequency of less than 1 kHz, thereby forming the paste.