http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BR-PI0510102-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e443fcd44793752f156437bbfd4c8603 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-205 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-30 |
| 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/C08G64-04 |
| filingDate | 2005-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69d2f0f4c83c44fb9e6a9e971338777f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_690e02e943c5b090ca421d310d58ac55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e34d59af5a47dc7c52fc035bb7cf7516 |
| publicationDate | 2007-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BR-PI0510102-A |
| titleOfInvention | method for efficiently producing an aromatic polycarbonate and aromatic polycarbonate produced by such method |
| abstract | METHOD FOR EFFICIENTLY PRODUCING AROMATIC POLYCARBONATE AND AROMATIC POLYCARBONATE PRODUCED BY SUCH METHOD. It is an object of the present invention to provide a method for producing a high quality, high performance aromatic polycarbonate (which is colorless and has excellent mechanical properties) from a fused aromatic polycarbonate prepolymer obtained from of a compound of aromatic dihydroxyl and diaryl carbonate, wherein the polycarbonate can be stably produced on a commercial scale at 1 to 50 t / hr for a long time without requiring a large amount of an inert gas. In the present invention, this objective has been achieved by a method for producing an aromatic polycarbonate by the melt transesterification process, wherein the prepolymer is made to absorb a specific amount of an inert gas, followed by polymerization using a guide fall wetting polymerizing device having a specific structure whereby a high quality, high performance aromatic polycarbonate as mentioned above can be stably produced on a commercial scale at 1 to 50 t / hr for a long time (greater than several thousand hours, for example over 5,000 hours) without fluctuating the molecular weight thereof. |
| priorityDate | 2004-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559376 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID19660 |
Total number of triples: 21.