| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cfc64998d9bc7e4ba5782d35d7b5a5af |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1078
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-133331
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-1333
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-361
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-3615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1333
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-361
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04 |
| filingDate |
2018-09-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95ee60ddbd1577c109e6055948ff4cd9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4a028d70e0ea6e832d579c2bc3075c7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11a077690cbba4d1998c883231f0bd9c |
| publicationDate |
2020-02-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2020040347-A1 |
| titleOfInvention |
Polyimide film having improved alkali resistance and method for manufacturing same |
| abstract |
The present invention provides a polyimide film manufactured by imidization of a precursor composition comprising: a first polyamic acid in which a first dianhydride and a first diamine bearing two or fewer benzene rings are polymerized; a second polyamic acid in which a second dianhydride and a second diamine bearing three or more benzene rings are polymerized; and carbon black, wherein, the polyimide film has: a degree of crystallinity of 65% or more; a light transmissivity of 0.09 or less; an alkali resistance index of 70% or greater as evaluated in terms of polyimide film thickness before and after exposure to an alkaline component; and a thickness of 8.0 ㎛ or less. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113817196-A |
| priorityDate |
2018-08-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |