| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_387abf6afc9a2cd5cfa5cd4d35f8b9fe |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2603
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate |
2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ad778fb070a03d37ce0f474b0e3b68f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdb41f2c134dd79cae0c2fedf8d37f74
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33d86ed0f1df7aefcb398a21fa41637f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6390122944c2aeb5789d71baef8b06c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b6caef7c4f8257d02ce069a6a5e7d6c |
| publicationDate |
2022-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022315698-A1 |
| titleOfInvention |
Method for producing polyether carbonate polyols |
| abstract |
A method for producing polyether carbonate polyols via the following steps: (i) accumulating alkylene oxide and carbon dioxide on a 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, wherein a reaction mixture containing the polyether carbonate polyol is obtained; and (ii) adding at least one component K to the reaction mixture containing the polyether carbonate polyol, wherein a buffer system suitable for buffering a pH value in the region of pH 3.0 to 9.0 is used as component K, wherein the component K is free from compounds containing P—OH— groups. |
| priorityDate |
2019-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |