| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31504
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2982
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31721 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1028 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C43-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
2001-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a426a5a2bed30320892b3b030712c17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a8d56f574c4d50e6671e2db1a786dd9 |
| publicationDate |
2003-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6538097-B2 |
| titleOfInvention |
Process for production of polyimide powder, polyimide powder, polyimide powder molded bodies and process for their production |
| abstract |
A process for production of polyimide powder, which comprises reacting a biphenyltetracarboxylic dianhydride and an aromatic diamine in an amide-based solvent optionally containing a water-soluble ketone, in the presence of an imidazole at 1-100 equivalent percent based on the carboxylic acid content of the polyimide precursor, separating and collecting the produced polyimide precursor powder from a water-soluble ketone solvent containing 3-30 wt % of an amide-based solvent, and heating the polyimide precursor powder to an imidation rate of 90% or greater, as well as polyimide powder obtained thereby, molded bodies of the polyimide powder, and a process for production of the molded bodies. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7642395-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7300972-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7129318-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006140924-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006057916-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006140899-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005080229-A1 |
| priorityDate |
2000-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |