METHOD FOR STOPPING OLEFIN POLYMERIZATION REACTION IN EMERGENCY
PROBLEM TO BE SOLVED: To stop an olefin polymerization reaction in an emergency within a short time by introducing a compound selected from among water, alcohols, molecular oxygen, CO2 and CO in polymerizing an olefin in a vapor phase in the presence of a specified catalyst. SOLUTION: A catalyst is...
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| creator | KUBO KUNIMICHI YOSHIKAWA MAMORU NIWA MASAHIRO |
| description | PROBLEM TO BE SOLVED: To stop an olefin polymerization reaction in an emergency within a short time by introducing a compound selected from among water, alcohols, molecular oxygen, CO2 and CO in polymerizing an olefin in a vapor phase in the presence of a specified catalyst. SOLUTION: A catalyst is prepared by bringing a compound containing a metal of group IV in the periodic table, a compound containing a metal of group I, II or III in the periodic table, an organic compound having a plurality of conjugated double bonds, a modified organoaluminum compound having an Al-O-Al bond and/or a boron compound and an inorganic compound support and/or a particulate polymer support into contact with each other. An olefin (e.g. ethylene) is (co)polymerized steadily in a vapor phase. When the emergency stop of the polymerization reaction is necessary, a compound selected from among water, alcohols, molecular oxygen, carbon dioxide and carbon monoxide is introduced into the reactor, whereupon the olefin polymerization reaction can be stopped within a short time. |
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SOLUTION: A catalyst is prepared by bringing a compound containing a metal of group IV in the periodic table, a compound containing a metal of group I, II or III in the periodic table, an organic compound having a plurality of conjugated double bonds, a modified organoaluminum compound having an Al-O-Al bond and/or a boron compound and an inorganic compound support and/or a particulate polymer support into contact with each other. An olefin (e.g. ethylene) is (co)polymerized steadily in a vapor phase. When the emergency stop of the polymerization reaction is necessary, a compound selected from among water, alcohols, molecular oxygen, carbon dioxide and carbon monoxide is introduced into the reactor, whereupon the olefin polymerization reaction can be stopped within a short time.</description><edition>6</edition><language>eng</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970408&DB=EPODOC&CC=JP&NR=H0995505A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970408&DB=EPODOC&CC=JP&NR=H0995505A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUBO KUNIMICHI</creatorcontrib><creatorcontrib>YOSHIKAWA MAMORU</creatorcontrib><creatorcontrib>NIWA MASAHIRO</creatorcontrib><title>METHOD FOR STOPPING OLEFIN POLYMERIZATION REACTION IN EMERGENCY</title><description>PROBLEM TO BE SOLVED: To stop an olefin polymerization reaction in an emergency within a short time by introducing a compound selected from among water, alcohols, molecular oxygen, CO2 and CO in polymerizing an olefin in a vapor phase in the presence of a specified catalyst. 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When the emergency stop of the polymerization reaction is necessary, a compound selected from among water, alcohols, molecular oxygen, carbon dioxide and carbon monoxide is introduced into the reactor, whereupon the olefin polymerization reaction can be stopped within a short time.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD3dQ3x8HdRcPMPUggO8Q8I8PRzV_D3cXXz9FMI8PeJ9HUN8oxyDPH091MIcnV0BjOAUq5AcXdXP-dIHgbWtMSc4lReKM3NoODmGuLsoZtakB-fWlyQmJyal1oS7xXgYWBpaWpqYOpoTIQSAF2hKpI</recordid><startdate>19970408</startdate><enddate>19970408</enddate><creator>KUBO KUNIMICHI</creator><creator>YOSHIKAWA MAMORU</creator><creator>NIWA MASAHIRO</creator><scope>EVB</scope></search><sort><creationdate>19970408</creationdate><title>METHOD FOR STOPPING OLEFIN POLYMERIZATION REACTION IN EMERGENCY</title><author>KUBO KUNIMICHI ; YOSHIKAWA MAMORU ; NIWA MASAHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH0995505A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>KUBO KUNIMICHI</creatorcontrib><creatorcontrib>YOSHIKAWA MAMORU</creatorcontrib><creatorcontrib>NIWA MASAHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUBO KUNIMICHI</au><au>YOSHIKAWA MAMORU</au><au>NIWA MASAHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR STOPPING OLEFIN POLYMERIZATION REACTION IN EMERGENCY</title><date>1997-04-08</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To stop an olefin polymerization reaction in an emergency within a short time by introducing a compound selected from among water, alcohols, molecular oxygen, CO2 and CO in polymerizing an olefin in a vapor phase in the presence of a specified catalyst. SOLUTION: A catalyst is prepared by bringing a compound containing a metal of group IV in the periodic table, a compound containing a metal of group I, II or III in the periodic table, an organic compound having a plurality of conjugated double bonds, a modified organoaluminum compound having an Al-O-Al bond and/or a boron compound and an inorganic compound support and/or a particulate polymer support into contact with each other. An olefin (e.g. ethylene) is (co)polymerized steadily in a vapor phase. When the emergency stop of the polymerization reaction is necessary, a compound selected from among water, alcohols, molecular oxygen, carbon dioxide and carbon monoxide is introduced into the reactor, whereupon the olefin polymerization reaction can be stopped within a short time.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | METHOD FOR STOPPING OLEFIN POLYMERIZATION REACTION IN EMERGENCY |
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