| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1c7d818864ce69f0dc8548437f22a997 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1032 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 |
| filingDate |
1991-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c36ee1b0af98a7599077862576aa70cd |
| publicationDate |
1993-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5200449-A |
| titleOfInvention |
Polyimide resin and preparation thereof |
| abstract |
A polyimide resin composition with outstanding heat resistance and mechanical properties is disclosed, along with a novel method of its preparation. A tetracarboxylic acid or its derivative and an aromatic diamine are dissolved in a solvent system of mixed phenols and are both polymerized and imidized on one step. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007152195-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007154717-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007154716-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008224366-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111032723-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011311871-A1 |
| priorityDate |
1990-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |