Polyimide and polyimide film, prepared therefrom, for flexible display
US11319409B2 · kind B2 · utility
1Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2018 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described is a polyimide prepared from a diamine containing a spiro or cardo group in a molecule structure, wherein the dimensional stability of the polyimide can be improved at a high temperature, and thus the polyimide can provide a polyimide film useful for a flexible substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.