| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-49 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0268
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-54
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/B01J31-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-54 |
| filingDate |
2003-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53393624ba4e170afcb0b3b106c3e102
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fa8f663021d6222fd04cb256c8b43e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_890b038ceb5e9d16d67bfced2783e0e4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb668a778da3437f06c6440dd1d9ed46 |
| publicationDate |
2003-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2003301040-A |
| titleOfInvention |
Process for preparing phosphonium phenolate catalyst and its use as transesterification catalyst |
| abstract |
PROBLEM TO BE SOLVED: To store a produced phenol adduct of phosphonium phenolate without deteriorating its purity until use in a transesterification reaction for producing a polycarbonate, and a catalyst obtained thereby To provide for the use of SOLUTION: (i) a step of producing a phenol adduct of phosphonium phenolate in the form of a crystalline solid; i) the solid is kept at a relative humidity of 30-70% and -30-50 ° C A method for preparing a catalyst used in a melt transesterification method for producing a polycarbonate, comprising a step of storing in a closed container at a temperature of |
| priorityDate |
2002-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |