High performance blends of aromatic polyimides with aromatic polyethersulfones
US5286812A · kind A · utility
6Cited by
55References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1991 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Sep 12, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0353
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermoplastic compositions of an aromatic polyimide and an aromatic polyethersulfone. The compositions have high upper critical use temperatures, high moduli, high tensile strengths, and high impact strengths. Some of the compositions are miscible blends, which additionally possess significant advantages due to their ease of processing. The miscible blends can be processed into amorphous single phase compositions or phase-separated compositions, depending on the processing conditions. Preferred compositions are blends of VICTREX polyethersulfone with either of the polyimides XU-218 or PI-2080.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.