Foamable polyetherimide resin formulation
US4543368A · kind A · utility
11Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Nov 9, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a foamable polyetherimide resin. These foamable polyetherimides have an effective amount of a chemical blowing agent which decomposes at a temperature equal to or greater than the glass transition temperature of the polyetherimide resin and does not have an adverse effect on the polyetherimide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.