http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021132109-A1
Outgoing Links
| 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/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L83-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D179-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L101-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L27-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L83-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-04 |
| filingDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0515a2c6a0fc86ae60962c96f31ea30a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4aec7358c83bd7d2961adefa55011dc1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5559fc0f2083a4f0474f766401d3ef34 |
| publicationDate | 2021-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2021132109-A1 |
| titleOfInvention | Polyimide resin, polyimide resin composition, polyimide varnish, and polyimide film |
| abstract | The present invention is a polyimide resin which has a constituent unit A derived from a tetracarboxylic acid dianhydride and a constituent unit B derived from a diamine, wherein: the constituent unit A contains at least one constituent unit that is selected from the group consisting of a constituent unit (A1) derived from a compound represented by formula (a1) and a constituent unit (A2) derived from a compound represented by formula (a2); the constituent unit B contains at least one constituent unit (B1) that is selected from the group consisting of a constituent unit derived from a compound represented by formula (b11), a constituent unit derived from a compound represented by formula (b12) and a constituent unit derived from a compound represented by formula (b13), and at least one constituent unit (B2) that is selected from the group consisting of a constituent unit derived from a compound represented by general formula (b21) and a constituent unit derived from a compound represented by general formula (b22); and the molar ratio of the constituent unit (B1) to the constituent unit (B2), namely (B1)/(B2) is from 45/55 to 75/25. The present invention provides: a polyimide resin which is capable of forming a film that has excellent transparency and optical isotropy, while exhibiting excellent ductility; a polyimide resin composition; a polyimide varnish; and a polyimide film. (In the formulae, each of R 1 and R 2 independently represents a methyl group or a trifluoromethyl group; and each of X 1 to X 4 independently represents a single bond, an alkylene group having 1 to 5 carbon atoms, an alkylidene group having 2 to 5 carbon atoms, -S-, -SO-, -SO 2 -, -O- or –CO-.) |
| priorityDate | 2019-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 322.