Toner having hydrocarbon wax with specific ester value and hydroxyl value
US6458499B1 · kind B1 · utility
11Cited by
13References
33Claims
0Family size
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Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08782
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner is principally constituted by a binder resin, a colorant and a hydrocarbon wax. The hydrocarbon wax has a hydroxyl value (Hv) of 5-150 mgKOH/g and an ester value (Ev) of 1-50 mgKOH/g satisfying Hv>Ev. Further, the toner has a tetrahydrofuran-soluble content providing a gel-permeation chromatogram showing at least one peak in a molecular weight region of 3×103 to 5×104 and at least one peak or shoulder in a molecular weight region of 1×105 to 1×107.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.