http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2866633-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2603 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2606 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 |
| filingDate | 2015-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82c30391bb4b4e524e87fd9a6f16c657 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_943592cd0dc0395c07fa181d8fbeb39c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e994ae316090822245d538d3e3157465 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62990bf17658f1c7b6291b3f76752754 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d19031c65a2f34573bc5530025b7379 |
| publicationDate | 2021-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2866633-T3 |
| titleOfInvention | Procedure for the preparation of polyethercarbonate polyols |
| abstract | Process for the preparation of polyethercarbonate polyols, which comprises the step of the reaction of alkylene oxide with carbon dioxide in the presence of an initiator compound with H functionality and double metal cyanide catalyst, characterized in that the process comprises the following steps: ( α) If necessary, in a first reactor, pretreat the double metal cyanide catalyst (DMC catalyst) at a temperature of 50 to 200 ° C and / or reduced pressure (absolute) from 10 mbar to 800 mbar, (β) in a first reactor contacting the double metal cyanide catalyst and suspending agent with alkylene oxide obtaining a first reaction mixture; and (γ) continuously adding to a second reactor the first reaction mixture, alkylene oxide, carbon dioxide and, if applicable, H-functional starter compound, where in step (β) it is used as the suspension of at least one H-functional starter compound selected from the group consisting of polyether polyols, polycarbonate polyols, polyestercarbonate polyols, polyether tertiarycarbonate polyols or polyethercarbonate polyols, wherein these H-functional starter compounds each have a hydroxyl number in the range of 3.0 mg KOH / g to 1000 mg KOH / g and wherein the reaction products formed in step (γ) are continuously withdrawn from the second reactor. |
| priorityDate | 2014-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 393.