http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-200801493-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 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/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-22 |
| filingDate | 2006-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EA-200801493-A1 |
| titleOfInvention | INDUSTRIAL METHOD FOR OBTAINING HIGH QUALITY AROMATIC POLYCARBONATE |
| abstract | The object of the present invention is to develop a specific method that allows the production of high quality aromatic polycarbonate with high performance characteristics, having excellent mechanical properties and not changing color, in a large amount (for example, not less than 1 t / h) for a long period of time. time (for example, not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours) from a dialkyl carbonate and an aromatic dihydroxy compound. When producing an aromatic polycarbonate from a dialkyl carbonate and an aromatic dihydroxy compound, the above object can be achieved by carrying out the process of the present invention, which includes the steps of: (i) producing a diaryl carbonate using two reaction distillation columns, each of which has a well-defined structure; (Ii) purifying the diaryl carbonate to obtain a high purity diaryl carbonate; (III) subsequently producing an aromatic polycarbonate using a down-flow polymerizer in contact with guides having a well-defined structure from a molten prepolymer obtained from an aromatic dihydroxy compound and a high purity diaryl carbonate; and (iv) recycling a by-produced aromatic monohydroxy compound to step (I). |
| priorityDate | 2005-11-30-04:00^^<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/compound/CID19660 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419559376 |
Total number of triples: 21.