Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_574bc8fd24e08fc5a292d012c5a28e48 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2603 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2696 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-34 |
filingDate |
2013-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_526f79fb5ac1e3af60df2bbd0b22248a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bae4c92b0b8c5de767ea577fa607bdbf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f7c3e05ca82aea70c23b9152b5cb96b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f914f82e33faf376e713ab92d4b6eac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9ee4c1a8843229f27c02dd96232d42a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e68c6e04f0ca119684b1a9d21096e925 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4c025f2f8be4791e87ceef8cd115368 |
publicationDate |
2014-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CA-2882915-A1 |
titleOfInvention |
Polyether carbonate polyol production method |
abstract |
The invention relates to a method for producing polyether carbonate polyols by attaching alkylene oxides and carbon dioxide to one or more H-functional starters in the presence of a double-metal cyanide catalyst, characterized in that (a) a suspending agent which contains no H-functional groups is provided in a reactor; (ß) optionally, a moiety of alkylene oxide is added to the mixture from step (a) at temperatures of 90 to 150°C, and the addition of the alkylene oxide compound is then interrupted; and (?) one or more H-functional starters are continuously metered into the reactor during the reaction. |
priorityDate |
2012-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |