Toner and external additive for toner
US10101683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09716
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a toner, including: a toner particle; and an organic-inorganic composite fine particle on a surface of the toner particle, in which the organic-inorganic composite fine particle includes: a resin fine particle; and an inorganic fine particle embedded in the resin fine particle, and part of which is exposed to a surface of the composite fine particle, and in which the composite fine particle satisfies the following relationships: (i) in viscoelasticity measurement of the composite fine particle, when the loss elastic modulus thereof at a temperature T (° C.) is represented by G″T [dN/m2], a change ratio d(Log(G″T))/dT of a common logarithm of the loss elastic modulus has a minimum in a temperature range of from 60° C. to 150° C., and the minimum is less than −0.10; and (ii) the loss elastic modulus (G″180) thereof at a temperature of 180° C. is 1.0×104 dN/m2 or more and 1.0×107 dN/m2 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.