http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007204680-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee1c19da359446fb5c4f0458a57b783d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 |
| filingDate | 2006-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c5c62e1062280312ad4efc3bab2a1f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e29589c69d378119e4a214844dc7f132 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_175b5d8cb60c1307b2b4dd54e3d443ee |
| publicationDate | 2007-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007204680-A |
| titleOfInvention | Method for producing polyether polyol |
| abstract | The present invention provides a process for producing a high molecular weight polyether polyol (PEP) having a narrow molecular weight distribution even when copolymerized with ethylene oxide (EO), hardly clouding at room temperature, and excellent fluidity. In a reactor, a mixture of an alkylene oxide (AO) having 3 or more carbon atoms and EO is supplied to a polyether polyol initiator in the presence of a double metal cyanide complex catalyst. In the production method of PEP in which an external block chain is formed in the initiator by performing a polymerization reaction, As an initiator, PEP having an average number of functional groups per molecule of 1 to 8, a hydroxyl value of 18 to 200 mgKOH / g, and A% of terminal hydroxyl groups being primary hydroxyl groups is used. The relationship between the ratio of EO (E mol%) in the total mixture of AO and EO with 3 or more carbon atoms fed into the reactor (E mol%) and the primary hydroxyl group ratio (A%) of the initiator is (EA) The ratio of EO is maintained to be <40, and a mixture of AO and EO is supplied to carry out the copolymerization reaction so that the ratio of the initiator to the total mass of the obtained PEP is 3 to 60% by mass. [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011136367-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020534394-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113150260-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7266025-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-5545364-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012111813-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111225936-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018030283-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111225936-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013522407-A |
| priorityDate | 2006-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.