http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220152527-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8205ec6ee1cd95eb60a03826535bad97 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-1337 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-133723 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1337 |
| filingDate | 2021-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8dc1b928074972b015d9ada0439e6919 |
| publicationDate | 2022-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20220152527-A |
| titleOfInvention | polyimide varnish |
| abstract | A polyimide varnish capable of obtaining a polyimide film having high film transmittance even when a polyimide having a diphenylamine skeleton is used. A polyimide precursor having a block (b1) having a repeating unit represented by the following formula (1) and a block (b2) having a repeating unit represented by the following formula (2), and a polyimide obtained by imidizing the polyimide precursor A polyimide varnish containing at least one block copolymer selected from the group consisting of (X 1 represents a tetravalent organic group. X 2 represents a tetravalent organic group derived from an acyclic aliphatic tetracarboxylic dianhydride or a tetravalent organic group represented by the following formula (X2). Y 1 represents a diphenylamine skeleton Represents a divalent organic group having 3 to 50 carbon atoms without Y 2 represents a divalent organic group having a diphenylamine backbone Two R 1 and R 2 each independently represent a hydrogen atom or 1 to 4 carbon atoms represents an alkyl group, and two Z 1 and Z 2 are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms which may have a substituent, an alkenyl group having 2 to 10 carbon atoms which may have a substituent, and a carbon number 2 which may have a substituent to 10 alkynyl group, tert-butoxycarbonyl group, or 9-fluorenylmethoxycarbonyl group.) (R 21 to R 24 each independently represent a hydrogen atom, a methyl group, an ethyl group, a propyl group, a chlorine atom or a phenyl group.) |
| priorityDate | 2020-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 124.