Very high heat thermoplastic polyetherimides containing aromatic structure
US4965337A · kind A · utility
17Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jan 30, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1067
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a wholly aromatic polyetherimide further containing sulfur containing groups in the backbone of the polyetherimide. The polyetherimide is characterized by extremely high glass transition temperatures, high chemical resistance and thermogravimetric stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.