| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_616b071a8f2decfc2ed30a71524e6f76 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D271-107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-107
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate |
2021-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2095cd0731c0b133358a408523393612
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad50cabd307351e5d291995c6f21b7dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_682fcb9cc5e9e01aa5c160f47429cb32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0381cfe875178af91c52d9daa813825e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02508673516651c730860601dfba2718
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6bd45e2792fe20b086ec4674bce317d |
| publicationDate |
2021-07-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113061251-A |
| titleOfInvention |
A kind of modified polyimide and its preparation method and application |
| abstract |
The invention relates to the technical field of composite material preparation, and specifically discloses a modified polyimide and a preparation method and application thereof. The structural formula of the modified polyimide is: It can be used to prepare modified polyimide films and optical compensation films in display devices. The preparation method of the modified polyimide is as follows: after carrying out a polymerization reaction of a fluorine-containing diamine monomer containing two 1,3,4-oxadiazole structures and cyclobutanetetracarboxylic dianhydride, heating the Aminated. The polyimide provided by the invention has birefringence properties, good optical properties and thermal stability, and is suitable as an excellent material for display devices. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115260491-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115260491-A |
| priorityDate |
2021-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |