http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109312065-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | 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/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-0208 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2609 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2606 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-266 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate | 2017-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109312065-B |
| titleOfInvention | Method for producing polyether carbonate polyols |
| abstract | The invention relates to a method for producing polyether carbonate polyols by adding alkylene oxides and carbon dioxide to H-functional starter substances in the presence of Double Metal Cyanide (DMC) catalysts or in the presence of metal complex catalysts based on metallic zinc and/or cobalt. The invention is characterized in that (epsilon) the reaction mixture obtained in step (delta) is adjusted to a total (absolute) pressure of 2.0 bar or less, preferably 0.5 bar to 2.0 bar, particularly preferably 0.9 bar to 1.1 bar, before step (zeta), and is then kept at a temperature of 80 to 180 ℃ for a residence time of at least 0.5 h. After this residence time, 5 to 100ppm of component K, selected from at least one compound containing phosphorus-oxygen-hydrogen groups, are added to the resulting mixture. |
| priorityDate | 2016-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 362.