| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c482f07c60f0a29aaa82d38959cec3ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b29c90d3724e76e54624dd69fb68adc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4bf411bdf5ebb983def7755e34474e12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_96ec3985e3ce9b24614fb87bf51a4f12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec5396a86c2a1d465668581d0ea80280
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1323cd78ac1c1d668e615c2eed61295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd163a199858ee0837f178ede029eea2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b4900610512df49b3d9633ed17e3fb37 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04
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/C07C69-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-08 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 |
| filingDate |
2011-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2012-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a888d28af5eaee781646cd330fec80b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c96db4401f88d5a21ca113e80298a5d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e047f64e582e17ced0363d1f7e53c5ee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47e15a8a34b25b3a7435edf5147195fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc756331c4b82801401c4b1dca7936c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a07502f82d2108ead49157d29341d66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0f5f4a32bdcbc4933cadfcff62d161b |
| publicationDate |
2012-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8304509-B2 |
| titleOfInvention |
Process for preparing diaryl carbonates from dialkyl carbonates |
| abstract |
The present invention relates to a process for continuously preparing diaryl carbonates from dialkyl carbonates and at least one monohydroxyl compound in the presence of catalysts, and to the use thereof for preparation of polycarbonates. The alkylene glycol obtained in the preparation of the dialkyl carbonate used is recycled by oxidative carbonylation with carbon monoxide in the presence of a catalyst to give the cyclic alkylene carbonate which is in turn converted to the dialkyl carbonate. More particularly, the process utilizes the alkylene glycol obtained for the diphenyl carbonate preparation process (DPC process). |
| priorityDate |
2010-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |