Method of manufacturing polyimide thin film and method of manufacturing liquid crystal orientation film of polyimide
US5061509A · kind A · utility
37Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Aug 23, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13378
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyimide thin film is formed on a substrate by imparting energy under vacuum, by means of heating, ultraviolet light or electron beam irradiation, or a combination thereof, to a polyimide having in the polymer main chain imide bonds and decomposable bonds such as carbon-carbon single bond differing from the imide bonds so as to break the decomposable bonds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.