| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_49e2d2c78f1756794d18b135d883b2e7 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B63-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-0208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-183
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2603
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-406 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate |
2018-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42fea1e7fc4e9dc2fca24a7945705f7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42a44bf2ef0360eecc2b8aac698d3297
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e1f51fa2de6b3d1859dd8717d2e1afd |
| publicationDate |
2020-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3700960-A1 |
| titleOfInvention |
Process to remove dmc catalysts from polyether carbonate polyols |
| abstract |
The present invention relates to a process for producing a polyether polycarbonate polyol of high purity. Polyether polycarbonate polyols of high purity prepared by the process described contain a low catalyst residue content. The process purifies the polyether-carbonate-polyol by the use of activated carbon, mixed in the polyether-carbonate-polyol and subsequently removed. In addition, the activated carbon may be coated on the filter through which the polyether carbonate polyol is filtered to form the polyether polycarbonate polyol of high purity. |
| priorityDate |
2017-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |