Expanded materials with nadimide resin base
US5036111A · kind A · utility
9Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Expanded material obtained by heating a composition comprising at least one hermosetting nadimide resin, said heating being performed at a temperature and during a period which are sufficient to cause the expansion of said composition by release of cyclopentadiene. A nadimide resin of the polyimide type and having a number average molecular weight of 600 to 10,000 is preferably used. The composition further comprises preferably 1% to 50% by weight of a linear, preferably thermostable polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.