http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2839505-T3
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbc93fa15ca59046e84ca5c5c84c433 |
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/C08G65-2606 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-266 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 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-02 |
filingDate | 2017-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2021-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6f3c138a55464c8317936ecd3621588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62990bf17658f1c7b6291b3f76752754 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd4ec3426da097acb6cfd2b5ee8632ad http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16245c74a25c48b9e24fd82aeaf915a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_943592cd0dc0395c07fa181d8fbeb39c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab59f7be052317f56b2905ebf3ec92bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cd7728c67d9de106971a15f32ed049c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cd01eb1017a5ac5591ace14d5af53d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_938cf66b30455384e43f3feef057d412 |
publicationDate | 2021-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | ES-2839505-T3 |
titleOfInvention | Procedure for the preparation of polyethercarbonate polyols |
abstract | Process for the preparation of polyethercarbonate polyols by adding alkylene oxides and carbon dioxide to an H-functional starter substance in the presence of a double metal cyanide (DMC) catalyst or in the presence of a metal complex catalyst based on the metals zinc and / or cobalt, in which (γ) alkylene oxide and carbon dioxide are added to the H-functional starter substance in a reactor at a total (absolute) pressure of 5 to 120 bar in the presence of a catalyst of double metal cyanide or in the presence of a metal complex catalyst based on zinc and / or cobalt metals, obtaining a reaction mixture containing polyethercarbonate polyol, (δ) the reaction mixture obtained in step (γ) remains in the reactor or, if necessary, is continuously transferred to a subsequent reactor at a total initial pressure (absolute) of 5 to 120 bar, where in each case by means of a subsequent reaction it is reduced the content of free alkylene oxide in the reaction mixture, and where the total (absolute) pressure during step (δ) can decrease up to 50%, and (ζ) the content of highly volatile components of the reaction mixture obtained is thermally reduced to a temperature of 80 ° C to 200 ° C, characterized in that (ε) before stage (ζ) the reaction mixture resulting from stage (δ) is brought to a total (absolute) pressure of < = 2.0 bar and is then left at a temperature of 80 to 180 ° C for a residence time of at least 0.5 h, and after this residence time has elapsed, 5 to 100 are added to the resulting mixture ppm of component K, the component K being selected from at least one compound containing a phosphorous-oxygen-hydrogen group. |
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: 338.