| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2380-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D175-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7671
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-664
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-305 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-44 |
| filingDate |
2012-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_031f5abd443342da1b12af7cc78b785e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_538c7b27df73d4b8c5bbc2e9951b4ff9 |
| publicationDate |
2014-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-2716679-A1 |
| titleOfInvention |
Method for producing polycarbonate polyols, polyurethane using said polycarbonate polyols |
| abstract |
A method for producing a polycarbonate polyol having a specific structure and specific physical properties, comprising performing a polycondensation reaction of a dihydroxy compound with a carbonic acid diester through a transesterification reaction therebetween in the presence of a catalyst, wherein at least one reactor is a reactor having an internal volume of 20 L or more and being equipped with a reflux condenser and a heating device for heating the reactor by using a heat medium, the difference between the temperature of the heat medium and the temperature of the reaction solution in the reactor is at least 5°C or more, and the total amount of monomers distilled out in all reaction steps is 15 wt% or less based on the gross weight of raw material monomers. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10640643-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10759901-B2 |
| priorityDate |
2011-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |