http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-200846389-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e443fcd44793752f156437bbfd4c8603 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04 |
| filingDate | 2007-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_690e02e943c5b090ca421d310d58ac55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69d2f0f4c83c44fb9e6a9e971338777f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8d7f2ee3c2146b7930c620740717c4d |
| publicationDate | 2008-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-200846389-A |
| titleOfInvention | Process for producing high-quality aromatic polycarbonate on industrial scale |
| abstract | It is an object of the present invention to provide a specific process that enables a high-quality and high-performance aromatic polycarbonate having excellent mechanical properties and no discoloration to be produced industrially in a large amount (e.g. not less than 1 ton / hr) stably for a prolonged period of time (e.g. not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours) from a cyclic carbonate and an aromatic dihydroxy compound. When producing the aromatic polycarbonate from the cyclic carbonate and the aromatic dihydroxy compound, the above object can be attained by carrying out a process according to the present invention which comprises the steps of: (I) producing a dialkyl carbonate and a diol using a reactive distillation column having a specified structure; (II) producing a diphenyl carbonate using two reactive distillation columns each having a specified structure; (III) purifying the diphenyl carbonate using a high boiling point material separating column A and a diphenyl carbonate purifying column B, so as to obtain a high-purity diphenyl carbonate; (IV) next producing an aromatic polycarbonate using a guide-contacting downflow type polymerization apparatus having a specified structure from a molten prepolymer obtained from an aromatic dihydroxy compound and the high-purity diphenyl carbonate; and (V) recycling by-produced phenol into step (II). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9950273-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11347150-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I499577-B |
| priorityDate | 2006-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 276.