| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
2018-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f12bf000b679874a69b73b117674572
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b96d5fe0edd6f3ce06c982314b72b6a9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33a6a3b2dc37948383b7f857199c38e6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_989e33188bc2376a4f5ffeab076c5477 |
| publicationDate |
2020-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3684845-A1 |
| titleOfInvention |
Method of modifying a polyimide and the polyimide resulting therefrom |
| abstract |
The present invention relates to a process for modifying a polyimide which comprises reacting a first polyimide with an amine to produce a second polyimide having an anhydride-amine stoichiometry of 2 to 40 mol% and reacting the second polyimide with a monoanhydride, bis (anhydride), bis (ether anhydride) or tetracarboxylic acid to produce a final polyimide having an anhydride-amine stoichiometry of 1 to 2 mol%. |
| priorityDate |
2017-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |