http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101981819-B1
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/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-323 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate | 2012-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101981819-B1 |
| titleOfInvention | Method for activating double metal cyanide catalysts for producing polyether polyols |
| abstract | The present invention (?) (? 1) DMC catalyst and at least one H-functional starting compound are placed in a reactor, (a2) passing an inert gas, an inert gas / carbon dioxide mixture or carbon dioxide into the reactor at a temperature of 50 to 200 DEG C while at the same time establishing a reduced pressure (absolute pressure) of 10 mbar to 800 mbar in the reactor by the removal of inert gas or carbon dioxide, (β) a partial amount of one or more alkylene oxides (based on the total amount of alkylene oxides used in steps (β) and (γ)) in an atmosphere of an inert gas / carbon dioxide mixture or under a carbon dioxide atmosphere, Is added to the mixture from step (a) at a temperature of < RTI ID = 0.0 > 200 C & (?) one or more alkylene oxides and carbon dioxide to a mixture resulting from step (?). Methods for preparing polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide (DMC) catalyst, and a method for activating a double metal cyanide catalyst . |
| priorityDate | 2011-07-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 224.