Essentially colorless, transparent polyimide coatings and films
US6232428A · kind A · utility
53Cited by
19References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2000 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jan 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Essentially colorless, transparent polyimide coatings and films prepared by combining aromatic dianhydrides with para-substituted aromatic diamines are provided. The polyimide coatings and films are produced by a process whereby the dianhydride and diamine monomer components are reacted at temperatures of greater than 80.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.