Toner and developer, toner container, process cartridge, image forming apparatus, and image forming method using the same
US7504188B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2007 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Nov 12, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a toner containing an ethyl acetate-soluble polyester component and an ethyl acetate-insoluble polyester component, wherein the toner is granulated in an aqueous medium, the ethyl acetate-insoluble polyester component is obtained by elongating and/or cross-linking a modified polyester resin during granulating and/or after granulating, the modified polyester resin is produced by condensation polymerization of an acid component and at least one type of diol compound selected from aliphatic diol and alicyclic diol in the presence of a catalyst, and the mass average molecular weight of the modified polyester resin is 10,000 to 100,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.