| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd7c27b9ec61781656e6f039702fd568 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L69-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 |
| filingDate |
2007-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_612612877de0f252a37cfd9f16454da4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe520ca5ca93aa1443fd3949413b2ca4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fd21d4a364bb2e7514a75c891dedd5b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_caf5dbb4fdfbc88af5b3c8e928b266d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2614d09ecf9b0a6ae15ad7f92d50bf39 |
| publicationDate |
2009-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100878452-B1 |
| titleOfInvention |
Process for producing siloxane-containing polycarbonate copolymer by solid phase polymerization |
| abstract |
The present invention relates to a process for preparing a high molecular weight transparent siloxane-polycarbonate copolymer resin, wherein the process according to the invention comprises a) a tetraarylphosphonium compound-based catalyst and optionally a promoter Low molecular weight polycarbonate prepolymer having a number average molecular weight of 1,000 to 10,000 g / mol by melt polymerizing dihydroxyaromatic compound, dihydroxypolysiloxane compound and diarylcarbonate at 180 to 1 mbar and 180 to 240 ° C under catalytic conditions. an initial step of preparing a (copolycarbonate prepolymer); b) converting to semi-crystalline siloxane-polycarbonate prepolymer by crystallization of the prepolymer, caused by nonsolvent; And c) preparing a high molecular weight polycarbonate copolymer having a weight average molecular weight of 25,000 to 200,000 g / mol by solid phase polymerization of the prepolymer in the presence of a catalyst comprising a tetraaryl phosphonium compound. Include. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101538207-B1 |
| priorityDate |
2007-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |