Liquid toner with additives for enhancing life of intermediate transfer members
US7622236B2 · kind B2 · utility
0Cited by
29References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 15, 2002 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Oct 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/1355
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid toner or toner concentrate comprising: pigmented toner particles in an amount of 0.5% to 20% by weight; a carrier liquid comprising: a liquid hydrocarbon; a silicone based additive; and a charge director, wherein the silicone based additive comprises a release life enhancer additive chosen from the group consisting of: a liquid silicone material having a viscosity of at least 5,000 centistokes; a silicone gum; a silicone surfactant; and a non-reactive silicone fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.