Invention Grant
- Patent Title: Adjuvants for positively charged toners
- Patent Title (中): 用于带正电的调色剂的佐剂
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Application No.: US10676371Application Date: 2003-09-30
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Publication No.: US07070900B2Publication Date: 2006-07-04
- Inventor: Julie Y. Qian , James A. Baker , Gay L. Herman
- Applicant: Julie Y. Qian , James A. Baker , Gay L. Herman
- Applicant Address: KR Suwon
- Assignee: Samsung Electronics Company
- Current Assignee: Samsung Electronics Company
- Current Assignee Address: KR Suwon
- Agency: Kagan Binder, PLLC
- Main IPC: G03G9/135
- IPC: G03G9/135 ; G03G9/13

Abstract:
Positive liquid electrographic toner compositions are provided comprising a liquid carrier having a Kauri-Butanol number less than about 30 mL and a plurality of positively charged toner particles dispersed in the liquid carrier. The toner particles comprise a polymeric binder comprising at least one amphipathic graft copolymer comprising one or more S material portions and one or more D material portions. The toner composition additionally comprises a charge control adjuvant that is an acid or a base. These compositions have surprising bulk conductivity and charge per mass properties, particularly as the toner particles are depleted from the toner composition during printing operations.
Public/Granted literature
- US20050069804A1 Adjuvants for positively charged toners Public/Granted day:2005-03-31
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