Polymer-encapsulated pigment particle
US-2016130450-A1 · May 12, 2016 · US
Liquid developer
US9798265B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9798265-B2 |
| Application number | US-201615166666-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 27, 2016 |
| Priority date | May 27, 2015 |
| Publication date | Oct 24, 2017 |
| Grant date | Oct 24, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention can provide a liquid developer that can accommodate faster process speeds by image forming apparatuses, in which the liquid developer contains a toner particle comprising a polyester resin, and a carrier liquid having a vinyl ether compound. The liquid developer further contains a polymer compound having a structural unit represented by formula (1) in either of the toner particle or the carrier liquid.
First claim
Opening claim text (preview).
What is claimed is: 1. A liquid developer comprising: a toner particle that contains a polyester resin; and a carrier liquid that contains a vinyl ether compound that has a volume resistivity of 1×10 9 to 1×10 15 Ω·cm, wherein the liquid developer contains a polymer compound having a structural unit represented by formula (1) in either the toner particle or the carrier liquid: where R 1 to R 4 are independently selected from the group consisting of a hydrogen atom and an alkyl group; A is selected from the group consisting of a single bond, a carbonyl group, an alkylene group, an arylene group, and —COOR 7 — (where the carbonyl group in the —COOR 7 — is bonded to the carbon atom to which R 1 is bonded, and R 7 represents a C 1-4 alkylene group); and B is an alkylene group or an arylene group. 2. The liquid developer according to claim 1 , wherein the carrier liquid contains the polymer compound having a structural unit represented by formula (1). 3. The liquid developer according to claim 1 , wherein the carrier liquid contains a copolymer that has the structural unit represented by formula (1) and a structural unit represented by formula (2): wherein R 5 is a hydrogen atom or an alkyl group, and R 6 is selected from the group consisting of an alkyl group, a carboxylic acid ester group, a carboxylic acid amide group, an alkoxy group, and an aryl group. 4. The liquid developer according to claim 1 , wherein the toner particle contains the polymer compound having a structural unit represented by formula (1). 5. The liquid developer according to claim 4 , wherein the carrier liquid contains a metal salt of an organic acid or a metal complex of an organic acid.
Assignees
Inventors
Classifications
obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) · CPC title
- G03G9/131Primary
obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
Ionic, organic compounds · CPC title
characterised by the liquid · CPC title
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Frequently asked questions
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- What does patent US9798265B2 cover?
- The present invention can provide a liquid developer that can accommodate faster process speeds by image forming apparatuses, in which the liquid developer contains a toner particle comprising a polyester resin, and a carrier liquid having a vinyl ether compound. The liquid developer further contains a polymer compound having a structural unit represented by formula (1) in either of the toner p…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification G03G9/131. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 24 2017 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).