| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00168 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-2465
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-2425 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-24 |
| filingDate |
1998-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_664d673ef44304e1f701bf96cda6d54d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_778a84fc8bb035321f9e5079286acdc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32b1de7a94285f1042c229b557efd69a |
| publicationDate |
1999-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5952449-A |
| titleOfInvention |
Method for producing an aromatic polycarbonate |
| abstract |
A method for producing an aromatic polycarbonate, which comprises subjecting to a transesterification polymerization reaction at least one polymerizable material for an aromatic polycarbonate. The transesterification polymerization reaction is performed in one or more polymerizers which is or are connected through a pipeline system. The pipeline system comprises one or more pipes through which a molten aromatic polycarbonate having a number average molecular weight increased by the transesterification polymerization reaction is passed while contacting an inner wall of the pipe or pipes. The pipeline system has at least one viscous polycarbonate passage region in which a molten aromatic polycarbonate having a number average molecular weight of 4,000 or more is passed through the pipe. The pipes in the viscous polycarbonate passage region of the pipeline system have no bent portion or not more than 50 bent portions in total. A high quality aromatic polycarbonate is produced, which is colorless and has a low foreign matter content. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7906598-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0246271-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7829640-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009048407-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9598518-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008058483-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100740062-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6670440-B2 |
| priorityDate |
1997-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |