http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0450505-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b944a1467d193bb9d96aae70ee8754d3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1053 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-02 |
| filingDate | 1991-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4a275eebe41ce3f344ae0bcd2e51d17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd05d310e1917467a3167657108177f2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10a2c1dae8208ce681fc7e059556daba |
| publicationDate | 1991-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0450505-A2 |
| titleOfInvention | Polyetherimide foam procursors and foams having improved physical properties and methods of making them |
| abstract | A method of making polyetherimide foam precursors and flexible polyetherimide foams having improved specific tensile strength, resistance to high temperatures and flame, low density and flexibility at both high and cryogenic temperatures. 4,4'-oxydiphthalic anhydride (ODPA) is reacted with an alcohol to produce a diester, which is then reacted with a suitable monomeric polyamine such as meta phenylene diamine to produce a precursor. This material is dried to a solid block or powder. Upon heating, foaming occurs, resulting in a fine celled white friable mass. The foam is cured by heating for a suitable period and is ready for use. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6695108-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2682111-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0111267-A1 |
| priorityDate | 1990-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.