| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-124
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-121 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-12 |
| filingDate |
2004-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0db9729a04e8d267afc73e3788c033dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9c8323c2118ec8203af1997600566d4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e4117c6938835ae5faf087873c3e6db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15ff7d3bb02d64f59ab84d68d79dfe7b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7eb43db3b2f90bb87e0ad8be3e7ae53
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_539e911f4ff2118d1d7f67fd31f301e4 |
| publicationDate |
2016-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-2575922-T3 |
| titleOfInvention |
Catalyzed phase transfer process for the preparation of polyetherimides |
| abstract |
A method of preparing an aromatic polyether polymer comprising contacting, in a solvent of low polarity, substantially equimolar amounts of at least one alkali metal salt of a dihydroxysubstituted aromatic hydrocarbon and at least one bis (N- (chlorophthalimide) ) aromatic compound, in the presence of a phase transfer catalyst that is substantially stable at the temperatures employed; wherein all the particles of said alkali metal salt have a diameter less than or equal to 200 micrometers. |
| priorityDate |
2003-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |