Method of preparing composition for forming polyimide film, composition for forming polyimide film prepared therefrom, and use thereof
Provided is a method of preparing a composition for forming a polyimide film which may significantly improve dispersibility of a pigment. Specifically, the method includes preparing a polyamic acid resin in the presence of a pigment dispersion including a blue-based inorganic pigment and a dispersing agent. In addition, an average particle size of the inorganic pigment in the pigment dispersion may be 10 to 100 nm..
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Patent| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Europäisches Patentamt - (2023) vom: 26. Dez. Zur Gesamtaufnahme - year:2023 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
YUN CHEOL MIN [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2023-12-26, Last update posted on www.tib.eu: 2024-01-19, Last updated: 2024-01-26 |
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| Patentnummer: |
US11851565 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
EPA018976956 |
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| 520 | |a Provided is a method of preparing a composition for forming a polyimide film which may significantly improve dispersibility of a pigment. Specifically, the method includes preparing a polyamic acid resin in the presence of a pigment dispersion including a blue-based inorganic pigment and a dispersing agent. In addition, an average particle size of the inorganic pigment in the pigment dispersion may be 10 to 100 nm. | ||
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| 650 | 4 | |a B32B: Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form | |
| 650 | 4 | |a C08J: Working-up; general processes of compounding; after-treatment not covered by subclasses c08b, c08c, c08f, c08g or c08h (working, e.g. shaping, of plastics b29) | |
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