Polymers for use in electronic devices
US12049542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2019 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Dec 5, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/0154
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a polyimide having a repeat unit structure of Formula IV In Formula IV: Ra is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and Rb is the same or different at each occurrence and represents one or more aromatic diamine residues. 30-100 mol % of Rb has Formula II In Formula II: R1 and R2 are the same or different at each occurrence and are halogen, alkyl, fluoroalkyl, silyl, alkoxy, fluoroalkoxy, or siloxy; a and b are the same or different and are an integer from 0-4; c and d are the same or different and are 1 or 2; and * indicates a point of attachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.