| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c29db5a3555a75c0a9841570c0dd60ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9763523fdf715a72f14467ce07c1a29d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_de7d0577b764663e89c439f7d907e736
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-359 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-3563
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-359
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-27 |
| filingDate |
2001-09-05^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1842c015139a14c2c85a9ce282718b3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_493e8a8cec539a597d142154b68eb319
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58f84d49df69562f942648f3ac61f4ba |
| publicationDate |
2002-03-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0220641-A1 |
| titleOfInvention |
Process for preparation of molten mixtures of aromatic hydroxyl compounds and carbonic diesters |
| abstract |
In the step of producing a polycarbonate, the concentrations of an aromatic dihydroxyl compound and a carbonic diester or the ratio between both is speedily and efficiently determined and controlled to thereby obtain a high-quality consistent polycarbonate. The aromatic dihydroxyl compound/carbonic diester ratio of a molten mixture (A) containing both is determined by near infrared spectroscopy at a wavelength of 1600 to 1900 nm. |
| priorityDate |
2000-09-08^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |