http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6162522-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-18 |
| filingDate | 1984-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_683d3d0101d95182dc89297e909aaf77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ad562fed22679c011bf707e6c3c1db8 |
| publicationDate | 1986-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6162522-A |
| titleOfInvention | Production of polycondensation product |
| abstract | PURPOSE: To obtain a polycondensation product having excellent quality and slight coloring, stably, by carrying out the polycondensation of bisphenol and diaryl carbonate, etc. in three steps while distilling out produced phenol from the system. n CONSTITUTION: The objective polycondensation product can be produced in three steps. In the first step, a bisphenol such as 2,2-bis(4'-hydroxyphenyl) propane and a diaryl carbonate and/or a dicarboxylic acid diaryl ester such as diphenyl terephthalate, etc. are subjected to the first-stage polycondensation reaction in the presence of a catalyst such as an alkali metal (carbonate) (e.g. Li), preferably at 50W300°C under 760W1mmHg pressure while distilling out 75W95wt% of the whole phenol to be distilled. In the second step, the product of the first step is extruded in the form of a strand of 1W5mmϕ into a vacuum chamber maintained at preferably 240W320°C and 10W0.1mmHg to remove a part of residual phenol by distillation, and in the third step, the phenol is completely distilled out by a twinscrew extruder. n COPYRIGHT: (C)1986,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9051420-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9382378-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012528896-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008056844-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9216577-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011140645-A |
| priorityDate | 1984-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.