Invention Grant
- Patent Title: Making a liquid electrophotographic (LEP) paste
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Application No.: US15087929Application Date: 2016-03-31
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Publication No.: US09857714B2Publication Date: 2018-01-02
- Inventor: Doris Pik-Yiu Chun
- Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Agency: Dierker & Kavanaugh, P.C.
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/12 ; G03G9/125 ; G03G9/13 ; C09D11/033 ; C09D11/037 ; C09B67/46 ; C09B67/00 ; C09D17/00

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.
Public/Granted literature
- US20160216630A1 MAKING A LIQUID ELECTROPHOTOGRAPHIC (LEP) PASTE Public/Granted day:2016-07-28
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