Toner
US6780557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Sep 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner comprising a resin binder comprising a crystalline resin having a ratio of a softening point to a maximal peak temperature of heat of fusion of 0.6 or more and less than 1.1, and an amorphous hybrid resin having a ratio of a softening point to a maximal peak temperature of heat of fusion of from 1.1 to 4.0; and a colorant, wherein the amorphous hybrid resin comprises two polymerization resin components each having an independent reaction path, said two polymerization resin components being partially chemically bonded to each other, wherein at least one polymerization resin component is the same as that of the crystalline resin, and wherein a weight ratio of the crystalline resin to the amorphous hybrid resin (crystalline resin/amorphous hybrid resin) is from 1/99 to 50/50. The toner can be used for developing electrostatic latent images formed in electrophotography, electrostatic recording method, electrostatic printing, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.