| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-36 |
| filingDate |
1997-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50c0f456213ddae2f3ef20968baf9d83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c5cc26737f311caf5998fe2f24e9f67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc9065fafec3a2df5d0b448e30beb9b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6277bd5958eaea924dd28fc5ec5f8b55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22d5e9525a7ff149c25e66f2f3b86094
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33c4819e3d0c2da58ccb5acac9c4e4f0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ccfa4407c4f4b3d36d32d6fb0093634
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_690f674d2eb7971559d9dd293d7281c1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8125659c4a84232d174eabd6c4d97bf7 |
| publicationDate |
1999-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100234679-B1 |
| titleOfInvention |
Process for producing diaryl carbonate |
| abstract |
High purity diaryl carbonate is prepared by transesterifying (A) (a) diaryl oxalate and phenolic compounds or (b) alkyl oxalate in one or two steps in the presence of a catalyst to prepare diaryl oxalate while removing by-products from the reaction system. (D) collecting diaryl oxalate from the resulting reaction product mixture of step (B), (A), and (C) decarbonylating aryl oxalate to carbon monoxide, preferably in the presence of a phosphorus compound-containing catalyst. The reaction by-products formed are produced in high yield by the step of converting diaryl oxalate to the corresponding diaryl carbonate while removing from the reaction system and collecting diaryl carbonate from the reaction product mixture of step (C). |
| priorityDate |
1996-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |