http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20170129172-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_78ca80ad4b743c901ec136b21263f093 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L69-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L69-00 |
| filingDate | 2016-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29d1b781067ff8115ad8ba115b85cc61 |
| publicationDate | 2017-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20170129172-A |
| titleOfInvention | Melt polymerization method and polycarbonate produced therefrom |
| abstract | A method of melt polycondensing polycarbonate, comprising: forming a catalyst mixture in a mixing unit, wherein the catalyst mixture comprises a dihydroxy compound, a carbonate compound, and a monomer step catalyst, wherein the monomer step catalyst comprises a quaternary ammonium compound, And one or both of a quaternary phosphonium compound other than phenylphosphonium phenoxide and tetraphenylphosphonium acetate; Adding the catalyst mixture to an oligomerization unit to form an oligomer; And adding the oligomer to a polymerization unit to form a polycarbonate, wherein a second catalyst comprising one or both of tetraphenylphosphonium phenoxide and tetraphenylphosphonium acetate is present in the oligomerization unit. |
| priorityDate | 2015-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 284.