http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2011034030-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4887 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4866 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-26 |
| filingDate | 2010-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2013-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2011034030-A1 |
| titleOfInvention | Method for producing polyethers |
| abstract | In the production of polyethers carried out by ring-opening addition polymerization of alkylene oxide or the like to an initiator in the presence of a double metal cyanide complex catalyst (DMC catalyst), it is possible to use a low concentration of DMC catalyst. The present invention provides a method for producing a polyether capable of reducing the amount of residual DMC catalyst present in the polyether obtained. A method for producing a polyether by ring-opening addition polymerization of an alkylene oxide and an oxygen-containing heterocyclic compound other than an alkylene oxide to an initiator having a hydroxyl group in the presence of a DMC catalyst. Before the above, a DMC catalyst and an initiator having a hydroxyl group are mixed under a temperature condition of 125 ° C. to 180 ° C. under an absolute pressure of 0.06 MPa or less for 10 minutes to 24 hours. Manufacturing method. |
| priorityDate | 2009-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 130.