http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MY-113933-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationCPCInventive | 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 |
| filingDate | 1996-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c617620e5f7859336b435c6b050f811 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9474fced9086b580fe09d75f787cba7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33136c5e16b74ef6b477a7807835b681 |
| publicationDate | 2002-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MY-113933-A |
| titleOfInvention | Method for producing an aromatic polycarbonate |
| abstract | DISCLOSED IS A METHOD ?OR PRODUCING AN AROMATIC POLYCARBONATE WHICH COMPRISES SUBJECTING TO A TRANSESTERIFICATION REACTION IN A POLYMERIZER AT LEAST ONE POLYMERIZABLE MATERIAL SELECTED FROM A MOLTEN MONOMER MIXTURE OF AN AROMATIC DIHYDROXY COMPOUND AND A DIARYL CARBONATE, AND A MOLTEN PREPOLYMER OBTAINED FROM THE MONOMER MIXTURE, WHEREIN A LIQUID MASS OF POLYMERIZABLE MATERIAL BEING TRANSESTERIFIED IN THE POLYMERIZER HAS AN EXPOSED SURFACE, AND WHEREITHE TRANSESTERIFICATION REACTION OF THE LIQUID MASS OF POLYMERIZAB1E MATERIA1 IS PERFORMED UNDER REACTION CONDITIONS SUCH THAT THE FO110W-ING FORMULA (1) IS SATIS?IED: LOG (S/V) ~ 2 X 10-5 X MN + 0.8 (1)WHEREIN S REPRESENTION AN EVAPORATION SURFACE AREA (M2) WHICH IS DEFINED AS THE AREA (M2) OF THE EXPOSED SURFACE OF THE LIQUID MASS OF POLYMERIZABLE MATERIAL: V REPRESENTS THE VOLUME (M3) OF THE LIQUID MASS OF POLYMERIZABLE MATERIAL IN THE POLYMERIZER; AND AN REPRESENTS THE NUMBER AVERAGE MOLECULAR WEIGHT OF THE AROMATIC POLYCARBONATE TO BE PRODUCED. AS COMPARED TO THE PRIOR ART METHOD, THIS METHOD IS COMMERCIAL1Y ADVANTAGEOUS NOT ONLY IN THAT A HIGH QUALITY AROMATIC POLYCARBONATE HAVING HIGH HEAT RESISTANCE CAN BE OBTAINED AT HIGH POLYMERIZATION RATE WITHOUT SUFFERING DISCOLORATION, ENTRY OF IMPURITIES AND GENERATION OF A THERMAL DECOMPOSITION PRODUCT, BUT ALSO IN THAT A VERY LARGE MOTIVE POWER FOR AGITATION IS NOT NEEDED AND A SCALE-UP OF THE POLYCARBONATE PRODUCTION CAN BE EASILY ACHIEVED. |
| priorityDate | 1995-12-15-04:00^^<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: 16.