| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
1990-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89b05d1a185f1f2b01798a17007aa99e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48d03a22a0a72184ea87f73542ac009a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0706cc158d54598adbc2f81cf83cd97
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d3c99445d0530fc377cc7e668c85a3d |
| publicationDate |
1990-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4978692-A |
| titleOfInvention |
Polyimide foam |
| abstract |
Thermoplastic polyimide foams are provided which essentially consist of recurring units represented by the formula (I): ##STR1## wherein X is a bond, divalent hydrocarbon radical having from 1 to 10 carbon atoms etc. and R is an aliphatic radical having 2 or more carbon atoms, cycloaliphatic radical etc. n The foams have an apparent density of from 0.02 to 0.2 g/cc, average cell diameter of 0.1 to 1 mm and a closed cell content of 50% or more. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6391932-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5084484-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5087644-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5268447-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6503427-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6172127-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5122546-A |
| priorityDate |
1988-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |