| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_93a902eab5bada1390302b0129bb6a23 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1032
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-10 |
| filingDate |
2018-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_217ce7aecd73746e35070988fd12a403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d7b50ba4787af013bd4d93b740a2e6a |
| publicationDate |
2022-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11525037-B2 |
| titleOfInvention |
Tetracarboxylic dianhydride, polyimide precursor resin and solution thereof, and polyimide and solution thereof |
| abstract |
A tetracarboxylic dianhydride represented by the following general formula (1):[in the formula (1), R1, R2, and R3 each independently represent a hydrogen atom and the like, and n represents an integer of 0 to 12], wherein a ratio of a summed amount of a specific stereoisomer (A) and a specific stereoisomer (B) is 50% by mole or more relative to a total amount of stereoisomers based on three-dimensional configurations of two norbornane rings in the general formula (1), and a content ratio of the stereoisomer (A) is 30% by mole or more relative to the total amount of the stereoisomers. |
| priorityDate |
2017-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |