http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-102480802-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-269 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2654 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-26 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate | 2015-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-102480802-B1 |
| titleOfInvention | Dual catalyst system for high primary hydroxyl polyols |
| abstract | A process for preparing polyols of high primary hydroxyl group content and high number average molecular weight comprises a double metal cyanide catalyst and a low molecular weight derived from propylene oxide, ethylene oxide or butylene oxide having a number average molecular weight of less than 1,000 g/mol. preparing a mixture comprising the molecular weight polyether polyol, setting the mixture to have a first temperature, adding at least one selected from propylene oxide, ethylene oxide, and butylene oxide to the mixture at the first temperature, and reacting the mixture Forming a reacted mixture, adding a Lewis acid catalyst to the reacted mixture, setting the reaction mixture comprising the second catalyst to have a second temperature lower than the first temperature, and having a primary hydroxyl group content of at least 60% and adding at least one additional selected from propylene oxide, ethylene oxide, and butylene oxide to the reacted mixture at the second temperature such that the resulting polyol having a number average molecular weight greater than 2,500 g/mol is formed. |
| priorityDate | 2014-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.