| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2645 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate |
2019-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_761e59a5b4e6254f3a925fe55b4e7fc9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3be9944519415251630a43df0fa5b417
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7186340868a7d887d539493a896b9bc7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4bc5b5ce4cf5a22d61f6ba60f3d14ebe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61dd8237e03ca9f4ce8225faedfbcd79 |
| publicationDate |
2021-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3771724-A1 |
| titleOfInvention |
Process for producing polyether carbonate polyols |
| abstract |
The invention relates to a process for the production of polyether carbonate polyols by the steps (i) Addition of alkylene oxide and carbon dioxide to an H-functional starter substance in the presence of a double metal cyanide catalyst or a metal complex catalyst based on the metals zinc and / or cobalt, a reaction mixture containing the polyether carbonate polyol being obtained, (ii) adding at least one component K to the reaction mixture containing the polyether carbonate polyol, characterized in that A buffer suitable for buffering a pH value in the range from pH 3.0 to pH 9.0 is used as component K, component K being free from phosphoric acid. |
| priorityDate |
2019-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |