http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2011140694-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | 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/C07D317-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-96 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 |
| filingDate | 2011-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2013-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2011140694-A |
| titleOfInvention | METHOD FOR PRODUCING OLIGO / POLYCARBONATES FROM DIALKYL CARBONATES AND OBTAINED BY THIS METHOD OF POLYCARBONATES |
| abstract | 1. A method for producing oligo / polycarbonates, which includes the following steps: (a) obtaining alkylene carbonate by converting alkylene oxide with carbon dioxide, (b) converting the alkylene carbonate obtained in step (a) with at least one alkyl alcohol in the presence of a catalyst and, if necessary, organic solvent to form at least one dialkyl carbonate and alkylene glycol, (c) isolating and processing at least part of the dialkyl carbonate formed in step (b), (d) isolating and, if necessary, purifying at least part of the alkylene glycol formed in step (b), ( e) oxidative carbonylation of at least a portion of the alkylene glycol recovered in step (d) with carbon monoxide to alkylene carbonate to form water, (f) isolation and, if necessary, purification of at least a portion of the alkylene carbonate formed in step (e), (g) return of at least part of the alkylene carbonate obtained in step (f) to the step for producing a dialk yl carbonate (b), (h) converting at least part of the dialkyl carbonate with monophenol obtained in step (c) into an alkyl aryl carbonate and / or diaryl carbonate and an alkyl alcohol, wherein the alkyl alcohol can be reused in step (b), (i) disproportionation at least part of the alkyl aryl carbonate obtained in step (h) to diaryl carbonate and dialkyl carbonate, wherein the dialkyl carbonate can be reused in step (b), (j) transesterification of at least part of the diaryl carbonate obtained in step (i) with bisphenol to oligocarbonate / polycarbonate and monophenol can be reused in step (h). 2. The method according to claim 1, different |
| priorityDate | 2010-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.