| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a0bed9490fa35009542e20f766893604
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c28026a806133d24f3bbb9ad42e3adf5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95c6d34e4eedf4db09e1cfbcb964e61d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-186
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-448
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-448
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-24 |
| filingDate |
2004-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04d90e3fad0a161a68ea3267c4880fb4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b05f00c1855e0175de15de253bb396a2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77f6b990843cb1ff5bdcf5049d5ac9f0 |
| publicationDate |
2005-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2005016997-A1 |
| titleOfInvention |
Method for preparation of copolyorganosiloxanecarbonates of high clarity |
| abstract |
Copolyorganosiloxanecarbonates are prepared by first preparing an oligomeric aromatic polycarbonate, such as an oligomeric bisphenol A polycarbonate, in the presence of a tertiary amine as the only catalyst species; contacting the oligomeric polycarbonate mixture with a polyorganosiloxane bis(aryl)chloroformate, such as the bischloroformate of hydroxy-terminated eugenol polydimethylsiloxane; and introducing phosgene and/or chain termination agent either continuously or in stages. A feature of the process is the presence of dihydroxyaromatic compound in only one charge, at the beginning. The products have excellent physical properties, including transparency. |
| priorityDate |
2003-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |