Toner
US9098003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2012 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09733
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner including toner particles containing a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent is a polymer A having a structure “a” represented by formula (1), and the polymer A has a weight average molecular weight (Mw) of 1,000 to 100,000:wherein R1 represents a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms, R2 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms, and g represents an integer of 1 to 3 and h represents an integer of 0 to 3, wherein when h is 2 or 3, R1 can be each independently selected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.