http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018258225-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1021 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1064 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1046 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1032 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2018-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33a6a3b2dc37948383b7f857199c38e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9101f2b744efb5b8ca4d14a22a7daab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7747b40d0abbda2fb11143f8a943584d |
| publicationDate | 2018-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2018258225-A1 |
| titleOfInvention | Methods of manufacture of polyetherimides |
| abstract | A method of manufacture of a polyetherimide composition includes contacting a substituted phthalic anhydride and an organic diamine in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents at a temperature of greater than 130° C. to provide a bis(phthalimide) composition comprising diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing solvents and a bis(phthalimide); and polymerizing the bis(phthalimide) and an alkali metal salt of a dihydroxy aromatic compound in the presence of diphenyl sulfone, sulfolane, or a combination comprising at least one of the foregoing to form a polyetherimide. The method does not require any catalyst either for the imidization or the polymerization. |
| priorityDate | 2014-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 137.