| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-40 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40 |
| filingDate |
2002-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f04378889cddb11432194be5f55ecb1d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_051c35af461453205a1033289d8110af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c38f224f7678af15413fdd3edd5948f2 |
| publicationDate |
2003-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-03020795-A1 |
| titleOfInvention |
Process for preparing polycarbonate |
| abstract |
A process for quenching a catalyst used in the manufacture of polycarbonate by melt polycondensation of a dihydroxy compound and a diester. The process includes adding a quencher composition to an intermediate polycarbonate to deactivate residual catalyst. The quencher composition includes a compound having at least one sulfonic acid group and at least one amino group. |
| priorityDate |
2001-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |