http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59217723-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-18 |
| filingDate | 1983-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe24ca908190343900222f7f30a119b5 |
| publicationDate | 1984-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59217723-A |
| titleOfInvention | Production of polyester |
| abstract | PURPOSE: To obtain a polyester having high polymerization degree and narrow molecular weight distribution, by carrying out the direct polycondensation reaction of an aromatic polyester in the presence of a specific amide compound and a specific halogenated sulfonyl compound. n CONSTITUTION: The objective polyester is prepared by carrying out the polycondensation reaction of (i) a dicarboxylic acid and a diol, (ii) a hydroxy acid having a phenolic hydroxyl group and a carboxyl group on a benzene ring, or (iii) the above hydroxy acid and dicarboxylic acid and a diol, in the presence of (A) an amide compound of formula I [R 1 , R 2 and R 3 are H, (cyclo)alkyl, aryl or aralkyl] and (B) a halogenated sulfonyl compound of formula II [R 4 is (cyclo) alkyl, aryl or aralkyl; X 1 is halogen] excluding the case to form a quaternary salt of formula III (R 5 and R 6 are same as R 1 WR 3 ; R 8 is same as R 4 ; X 2 is halogen) by the reaction of the component (A) and the component (B). n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.