Reversibly allochroic toner, method of producing the same, toner cartridge, and image forming apparatus
US-9519236-B2 · Dec 13, 2016 · US
Decolorable toner and process for production thereof
US8940468B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8940468-B2 |
| Application number | US-201213537451-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2012 |
| Priority date | Jul 8, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group in to the aqueous medium, and fusing the aggregates in the aqueous medium. As a result, it becomes possible to produce a decolorable toner which suppresses the generation of fine powder due to the release of fine particles of an erasable color material from the toner.
First claim
Opening claim text (preview).
What is claimed is: 1. A process for production of a toner, comprising: aggregating encapsulated and dispersed particles of a color material including a color-forming compound, a color-developing agent and a decoloring agent with dispersed particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group reactive with a polyester resin into the aqueous medium to surface-treat the ag…
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Physics · mapped topic
Physics · mapped topic
- G03G9/0928Primary
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8940468B2 cover?
- Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an ox…
- Who is the assignee on this patent?
- Aoki Takayasu, Hara Takafumi, Itou Tsuyoshi, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification G03G9/0928. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).