| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D179-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-3445
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-63 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D179-08 |
| filingDate |
2020-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa267e3d65fb5ae1c5adfa91c67a1cd7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36611e8ebda4339093863f455e3cdc36 |
| publicationDate |
2022-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114867766-A |
| titleOfInvention |
Polyimide resins, varnishes and polyimide films |
| abstract |
The present invention is a polyimide resin having: a structural unit A derived from tetracarboxylic dianhydride and a structural unit B derived from a diamine, and the structural unit B includes: derived from the following formula (b1) The structural unit (B1) of the compound and the structural unit (B2) derived from the compound represented by following formula (b2). The present invention provides: a polyimide resin that can be formed into a film with low residual stress, excellent heat resistance, and a low coefficient of linear thermal expansion; a varnish containing polyamic acid as a precursor of the polyimide resin; and Polyimide film. |
| priorityDate |
2019-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |