Formed polyimide article
US5374708A · kind A · utility
6Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1991 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Aug 8, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyimide filaments and polyimide films having great strength, high elastic modulus and high crystallinity and comprising a novel polyimide which can be melt-processed without impairing high crystallinity and which essentially consists of recurring structural units represented by the formula (I): ##STR1## more than 85 mol % the polyimide consists of recurring structural units of the formula (II): ##STR2## and from 0.5 to 15 mol % of the polyimide consists of recurring structural units represented by the formula (III), the formula (II) exclusive, the formula (IV) and/or the formula (V).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.