Super low melt and ultra low melt toners containing crystalline sulfonated polyester
US7312011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner is disclosed that includes a toner binder of crystalline sulfonated polyester, wherein the crystalline sulfonated polyester is 90% by weight or more of the toner binder, and a colorant. In other embodiments, the toner includes a crystalline sulfonated polyester and a linear amorphous sulfonated polyester, and a colorant. In these embodiments, the crystalline sulfonated polyester is from about 20% to about 60% by weight of the toner binder and the linear amorphous sulfonated polyester is from about 40% to about 80% by weight of the toner binder. The toners possess excellent miniumum fixing temperatures in the range of from about 80° C. to about 130° C. Processes for preparing the toners are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.