http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014098079-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 2012-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42398edba4f12dfc6ba2e63303c8f862 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e92b956b1a727959bf110bac11742c2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0415f0cec74b8d1dfe562959453219ed http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60e4023cb1bbce70a1f5eeba79ec8a1c |
| publicationDate | 2014-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2014098079-A |
| titleOfInvention | Method for producing polycarbonate resin |
| abstract | 【Task】 In the method for producing a polycarbonate resin by the melt transesterification method, the present invention is not affected by the temperature in the reactor that is at a high temperature, and is also affected by clogging due to entrainment of droplets and the accumulation of volatilized by-product monohydroxy compounds. The purpose is to perform pressure management with high reliability. [Solution] A method for producing a polycarbonate resin by subjecting a dihydroxy compound and a carbonic acid diester to a polycondensation reaction in a reactor, and distilling off a by-product monohydroxy compound to the outside of the reaction system via a pressure reduction line 4, A pressure detection means 7 is installed via a branch pipe 6 provided in the line 4, and a distance Lt from the junction (A) 21 between the reactor and the pressure reduction line 4 to the pressure detection end (C) 23 is set. A method for producing a polycarbonate resin, wherein the piping length is 1 m or more. [Selection] Figure 1 |
| priorityDate | 2012-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 105.