http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005503407-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00006 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 |
| filingDate | 2002-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2005-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2005503407-A |
| titleOfInvention | Low particle bisphenol production method and use in polycarbonate production |
| abstract | A process for producing a low particle content divalent aromatic compound, such as bisphenol A, which can be used in the synthesis of a low particle content polycarbonate, wherein a desorption column containing a non-agglomerated filler is added to a bisphenol compound and phenol adduct and, if desired, Introduce stripping gas. The adduct is distilled while maintaining a sufficiently high operating temperature range and a sufficiently low column operating pressure for the desorption column. A stream of phenol and stripping gas is recovered from the top of the column. A bisphenol-containing second stream substantially free of additional particulates is recovered from the bottom of the column. This purified stream of bisphenol A can then be used in a process for producing optical grade polycarbonate. [Selection] Figure 2 |
| priorityDate | 2001-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.