Fine particles, particle group, anti-counterfeiting ink, anti-counterfeiting toner, anti-counterfeiting sheet, and anti-counterfeiting medium
US-9223235-B2 · Dec 29, 2015 · US
Production process of toner for electrostatic image development
US9012120B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9012120-B2 |
| Application number | US-201213693100-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 4, 2012 |
| Priority date | Dec 12, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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The production process is a process for producing a toner for electrostatic image development. The process has an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion with fine particles of a binder resin dispersed in an aqueous medium, and an aggregation terminating step of adding an aggregation terminating agent into the dispersion. The aggregation terminating agent is composed of a compound having at least one of a structure (1) represented by a formula (1) and a structure (2) represented by a formula (2). In the formulae (1) and (2), R 1 to R 9 each independently represent a hydrogen atom, a hydroxy group or an organic group. At least one of R 1 and R 4 or at least one of R 5 and R 6 represents a hydroxy group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A production process of a toner for electrostatic image development, which is composed of toner particles containing a binder resin, the process comprising: an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion in which fine particles of the binder resin have been dispersed in an aqueous medium, thereby aggregating the fine particles of the binder resin to form aggregate…
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Physics · mapped topic
- G03G9/0802Primary
Physics · mapped topic
Physics · mapped topic
- G03G9/0804Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9012120B2 cover?
- The production process is a process for producing a toner for electrostatic image development. The process has an aggregating step of adding an aggregating agent composed of a compound having a divalent or trivalent metal element into a dispersion with fine particles of a binder resin dispersed in an aqueous medium, and an aggregation terminating step of adding an aggregation terminating agent …
- Who is the assignee on this patent?
- Oshiba Tomomi, Mine Tomoko, Motani Hitomi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification G03G9/0802. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 21 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).