| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cdaf8c4d768eaba9a685fb9482b73a7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G61-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1082 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G61-00 |
| filingDate |
1989-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08dc7e9c907dd9d15fcc2039570fdf21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab192fbe17292e4381d7500cc0ebe43 |
| publicationDate |
1991-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0415956-A1 |
| titleOfInvention |
Polyetherketoneimides |
| abstract |
Polyetherketoneimides and copolymers thereof having an imide repeat unit of formula <CHEM> wherein Ri is <CHEM> in which A is a direct bond or -O- or another substantially non-electron-withdrawing group, and/or Ra is an at least partly arylene moiety other than m- or p-phenylene. These polymers tend to have improved melt stability and other properties, especially when made from a pre-existing imide monomer, instead of by the known amic acid route which results in uncyclised amic acid residues in the polymer. |
| priorityDate |
1988-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |