Toner formulation having a silane surface treated on its outer surface and method of preparing the same
US-9910377-B1 · Mar 6, 2018 · US
Toner formulation having a silane surface treated on its outer surface and method of preparing the same
US2018143556A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018143556-A1 |
| Application number | US-201815873351-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 17, 2018 |
| Priority date | Nov 18, 2016 |
| Publication date | May 24, 2018 |
| Grant date | — |
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Abstract
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A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons to the outer surface of the core shell toner particle. In an alternative method, the outer surface of the toner is surface treated with the alkoxysilane hydrocarbon solution and then fused to form toner particles. The alkoxysilane hydrocarbon surface treated core shell toner also can be mixed with magnetic carrier beads to form a developer mix to be used in a dual component development electrophotographic printer.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for producing toner comprising: combining and agglomerating a first polymer emulsion with a pigment dispersion and a wax dispersion to form toner cores; combining and agglomerating a second polymer emulsion with the toner cores to form toner shells around the toner cores; fusing the aggregated toner cores and toner shells to form toner particles; and treating the surface of the formed toner particles with 1,3-di-n-octyltetramethyldisiloxane and diethoxydimethylsilane, wherein alkoxy groups in the 1,3-di-n-octyltetramethyldisiloxane and the diethoxydimethylsilane covalently bond to functional groups located on the outer surface of the toner particle. 2 . A method for producing toner comprising: combining and agglomerating a first polymer emulsion with a pigment dispersion and a wax dispersion to form toner cores; combining and agglomerating a second polymer emulsion with the toner cores to form toner shells around the toner cores; fusing the aggregated toner cores and toner shells to form toner particles; and treating the surface of the formed toner particles with n-octadecyltrimethoxysilane, wherein alkoxy groups in the n-octadecyltrimethoxysilane covalently bond to functional groups located on the outer surface of the toner particle.
Assignees
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Classifications
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
Non-macromolecular organic compounds · CPC title
- G03G9/09392Primary
Preparation thereof · CPC title
Pretreatment of components · CPC title
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- What does patent US2018143556A1 cover?
- A method for producing core shell toner for electrophotography according to one embodiment, includes surface treating the outer surface of a core shell toner particle with a alkoxysilane hydrocarbon or combination of different alkoxysilane hydrocarbons using a hydrolytic deposition process after the core shell toner particle is fully formed. This method results in the bonding of the alkoxysilan…
- Who is the assignee on this patent?
- Lexmark Int Inc
- What technology area does this patent fall under?
- Primary CPC classification G03G9/09392. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu May 24 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).