Coloring composition, film, color filter, solid-state imaging element, and image display device
US-2020207990-A1 · Jul 2, 2020 · US
Polyhalogenated zinc phthalocyanine, polyhalogenated zinc phthalocyanine pigment, and color filter including pixel portion containing polyhalogenated zinc phthalocyanine pigment
US11261332B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11261332-B2 |
| Application number | US-201716332468-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 7, 2017 |
| Priority date | Sep 13, 2016 |
| Publication date | Mar 1, 2022 |
| Grant date | Mar 1, 2022 |
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- Title
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Abstract
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There is provided a polyhalogenated zinc phthalocyanine having good tinting strength and being capable of achieving higher brightness when the polyhalogenated zinc phthalocyanine is used in pixel portions of color filters. The object is achieved by providing the polyhalogenated zinc phthalocyanine represented by general formula 1: (wherein in general formula 1, X1 to X16 are each independently a chlorine atom, a bromine atom, or a hydrogen atom), in which a value obtained by dividing the maximum ion intensity, measured by mass spectrometry, in an m/z range of 1,780 (inclusive) to 1,820 (exclusive) by the maximum ion intensity in the m/z range of 1,820 (inclusive) to 1,860 (inclusive) is 1.00 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising a mixture of polyhalogenated zinc phthalocyanines represented by general formula 1: wherein in general formula 1, X 1 to X 16 are each independently a chlorine atom, a bromine atom, or a hydrogen atom, wherein a value obtained by dividing a maximum ion intensity, measured by mass spectrometry, in an m/z range of 1,780 (inclusive) to 1,820 (exclusive) by a maximum ion intensity in the m/z range of 1,820 (inclusive) to 1,860 (inclusive) is 1.00 or less, and where in the composition comprises 15-brominated, 1-chlorinated zinc phthalocyanine and 16-brominated zinc phthalocyanine. 2. A pigment dispersion comprising at least the composition according to claim 1 and an organic solvent. 3. A color filter comprising a pixel portion containing the composition according to claim 1 .
Assignees
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Classifications
polymeric dispersing agent · CPC title
Grinding; Milling with solid grinding or milling assistants · CPC title
- C09B47/10Primary
Obtaining compounds having halogen atoms directly bound to the phthalocyanine skeleton · CPC title
Filters (polarising elements G02B5/30) · CPC title
containing organic substances, e.g. dyes, inks or pigments · CPC title
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- What does patent US11261332B2 cover?
- There is provided a polyhalogenated zinc phthalocyanine having good tinting strength and being capable of achieving higher brightness when the polyhalogenated zinc phthalocyanine is used in pixel portions of color filters. The object is achieved by providing the polyhalogenated zinc phthalocyanine represented by general formula 1: (wherein in general formula 1, X1 to X16 are each independently …
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C09B47/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 01 2022 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).