http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1227881-A4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-0009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-182 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00033 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-205 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-20 |
| filingDate | 2000-06-12^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e4adf2e4e683465f7fb941881f36a9d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9ee7ee124a6204aa801118b3dda568e |
| publicationDate | 2003-08-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1227881-A4 |
| titleOfInvention | PROCESS AND MATERIAL FOR THE MANUFACTURE OF AROMATIC POLYCARBONATE |
| abstract | The present invention relates to a process and equipment for preparing highly polymerized aromatic polycarbonate by postpolymerizing polycarbonate prepolymer. The polycarbonate prepolymer is formed by the melt transesterification of carbonate ester and diol compound. The polycarbonate prepolymer is postpolymerized using a horizontal tubular reactor comprising rotational plates, several separated compartments divided by the rotational plates, and vents. The degree of polycarbonate polymerization can be continuously controlled by regulating the residence time of reactants in the reactor compartments. This is achieved in the present invention by regulating the rate of polycarbonate prepolymer injection into the reactor. Discoloration of final products can be prevented in the present invention by discharging byproduct(s), aromatic alcohol, from the reactor compartment through a vent. |
| priorityDate | 1999-06-12^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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