Amorphous, soluble, aromatic polymers with high glass transition temperatures
US5306789A · kind A · utility
5Cited by
5References
10Claims
0Family size
Inventors
Key dates
| Filing date | Oct 31, 1990 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Oct 31, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Amorphous polymers which are soluble in organic solvents and can thus be cast as films have high glass transition temperatures which make them suitable for numerous high temperature applications; the polymers comprise ortho aromatic polyketones, polyphthalazines and polyisoquinolines, the polyphthalazines and polyisoquinolines being readily formed from the polyketones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.