http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H026529-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/C08G2-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 |
| filingDate | 1988-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db7ff450dca0c743f17b3aa7328d075d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbfa6d8f3802281cc42c154eba5b15a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abd0370f0787bc2a181bf768bf8b2c0e |
| publicationDate | 1990-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H026529-A |
| titleOfInvention | Continuous production of oxymethylene copolymer |
| abstract | PURPOSE: To obtain a high-MW oxymethylene copolymer continuously in high yields within a short time by combining a specified polymerization catalyst with a cyclic ether to activate the catalyst, feeding this mixture, bringing it into contact with trioxan and discharging the formed polymer. n CONSTITUTION: A catalyst fed from a catalyst feed pipe 3 is combined with a cyclic ether before it enters a feed opening 4 and mixed to activate the catalyst in the pipe. A stream of the mixture of the activated catalyst with the cyclic ether and trioxan fed from a trioxan feed pipe 1 enter a polymerizer 5. The polymerizer 5 is a twin-screw self-cleaning mixer having an agitator shaft 9, a plurality of plate paddles 7 and a temperature control jacket 8. A paddle 7 has a shape of a covex lens. The lower part of the feed opening of the polymerizer 5 is constituted of a common screw 10. Among the catalysts to be used, a coordination compound of boron trifluoride is desirable, and boron trifluoride/diethyl ether complex, boron trifluoride/di(n-butyl) ether complex or boron trifluoride/phenol complex is particularly desirable. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112973611-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6037439-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013224378-A |
| priorityDate | 1988-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.