Polyimide foam prepared from amino terminated butadiene acrylonitrile reactant
US4539342A · kind A · utility
19Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1984 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Apr 3, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyimide and a process for its preparation wherein the polyimide is prepared from reaction of an organic tetracarboxylic acid or derivative thereof with a mixture of an aromatic diamine and an amine-terminated butadiene-nitrile copolymer. The polyimides of the invention are particularly useful in the preparation of flexible foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.