Materials for organic electroluminescence devices
US-9475792-B2 · Oct 25, 2016 · US
Dioxazine pigment and colorant
US11965099B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11965099-B2 |
| Application number | US-202217979240-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 2, 2022 |
| Priority date | Nov 28, 2017 |
| Publication date | Apr 23, 2024 |
| Grant date | Apr 23, 2024 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a dioxazine pigment having a contact angle with respect to water according to an infiltration rate method in a range of 30° to 75°, and a contact angle with respect to 1-bromonaphthalene according to an infiltration rate method in a range of 30° to 75°.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a dioxazine pigment, the method comprising: adding a dioxazine into a solvent with stirring to obtaining a pigment slurry; and adding an iron salt and hydrogen peroxide into the pigment slurry with stirring to obtain the dioxazine pigment, wherein the dioxazine is represented by formula (I): 2. The method for producing the dioxazine pigment according to claim 1 , wherein the dioxazine pigment comprises particles having at least one hydroxy group and at least one carbonyl group on a surface thereof.
Assignees
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Classifications
- C09B19/00Primary
Oxazine dyes · CPC title
in which the condensed system contains four or more hetero rings · CPC title
characterised by the pigment · CPC title
- C09B67/0014Primary
Influencing the physical properties by treatment with a liquid, e.g. solvents · CPC title
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- What does patent US11965099B2 cover?
- An object of the present invention is to provide a dioxazine pigment having excellent fluidity. More specifically, an object of the present invention is to provide a dioxazine pigment in which practically sufficient fluidity is attained in both (1) initial viscosity and (2) storage stability when the dioxazine pigment is used in a printing ink application. The object is attained by providing a …
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C09B19/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 23 2024 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).