http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62263215-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-06 |
| filingDate | 1986-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbfa6d8f3802281cc42c154eba5b15a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abd0370f0787bc2a181bf768bf8b2c0e |
| publicationDate | 1987-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62263215-A |
| titleOfInvention | Method for terminating polymerization reaction |
| abstract | PURPOSE: To terminate polymerization reaction without removing a catalyst and to obtain a polymer having high thermal stability, by carrying out bulk- polymerization of trioxane in the presence of a boron trifluoride catalyst and adding a metal sulfite as a reaction termination agent to the reaction system. n CONSTITUTION: Trioxane or a mixture of trioxane and a cyclic ether and/or a cyclic acetal is subjected to bulk-polymerization in the presence of a polymerization catalyst selected from boron trifluoride (hydrate) and a coordination compound of boron trifluoride and an organic compound containing O atom or S atom, preferably at 60W95°C. The polymerization reaction is terminated by adding a metal sulfite (preferably sodium sulfite) to the obtained polymer. Preferable example of the cyclic ether or cyclic acetal is ethylene oxide. The polymerization catalyst is preferably boron trifluoride dibutyl etherate, etc. n COPYRIGHT: (C)1987,JPO&Japio |
| priorityDate | 1986-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.