PREPARATION OF POLYOLEFIN
PURPOSE:To obtain a polyolefin having wide molecular weight distribution, and improved molding and processing properties, by polymerizing an olefin in the presence of a catalyst consisting of a titanium compound, an organoaluminum compound, an electron donor compound, and an unsaturated ether compou...
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| creator | ITOU JIYUNICHI MITANI KATSUO HAYASHI TETSUO ASAEDA EITAROU SHIGETOMI YOSHIYUKI |
| description | PURPOSE:To obtain a polyolefin having wide molecular weight distribution, and improved molding and processing properties, by polymerizing an olefin in the presence of a catalyst consisting of a titanium compound, an organoaluminum compound, an electron donor compound, and an unsaturated ether compound by a multiple stage. CONSTITUTION:A polymerizer is charged with (A) a titanium compound such as TiCl4, etc., (B) 1-200mol based on 1mol component A of an organoaluminum compound such as trimethylaluminum, etc., (C) |
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CONSTITUTION:A polymerizer is charged with (A) a titanium compound such as TiCl4, etc., (B) 1-200mol based on 1mol component A of an organoaluminum compound such as trimethylaluminum, etc., (C) <=10mol based on 1mol component A of an electron donor compound such as ethyl acetate, ethanol, etc., and (D) 0.1-10mol based on 1mol component A of an unsaturated ether compound such as 4-methoxybutene-1, etc. shown by the formula R-O-R' (R and R' are 1- 20C hydrocarbon, one of them is at lest 4-20C unsaturated hydrocarbon group), an olefin such as ethylene, etc. is polymerized by batch-wise method or a continuous method in such a way that a low-molecular-weight polymer and a high- molecular-weight polymer are prepared by divided two or more stages, to give the aimed polyolefin.</description><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>1986</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=19860114&DB=EPODOC&CC=JP&NR=S617306A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860114&DB=EPODOC&CC=JP&NR=S617306A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ITOU JIYUNICHI</creatorcontrib><creatorcontrib>MITANI KATSUO</creatorcontrib><creatorcontrib>HAYASHI TETSUO</creatorcontrib><creatorcontrib>ASAEDA EITAROU</creatorcontrib><creatorcontrib>SHIGETOMI YOSHIYUKI</creatorcontrib><title>PREPARATION OF POLYOLEFIN</title><description>PURPOSE:To obtain a polyolefin having wide molecular weight distribution, and improved molding and processing properties, by polymerizing an olefin in the presence of a catalyst consisting of a titanium compound, an organoaluminum compound, an electron donor compound, and an unsaturated ether compound by a multiple stage. 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CONSTITUTION:A polymerizer is charged with (A) a titanium compound such as TiCl4, etc., (B) 1-200mol based on 1mol component A of an organoaluminum compound such as trimethylaluminum, etc., (C) <=10mol based on 1mol component A of an electron donor compound such as ethyl acetate, ethanol, etc., and (D) 0.1-10mol based on 1mol component A of an unsaturated ether compound such as 4-methoxybutene-1, etc. shown by the formula R-O-R' (R and R' are 1- 20C hydrocarbon, one of them is at lest 4-20C unsaturated hydrocarbon group), an olefin such as ethylene, etc. is polymerized by batch-wise method or a continuous method in such a way that a low-molecular-weight polymer and a high- molecular-weight polymer are prepared by divided two or more stages, to give the aimed polyolefin.</abstract><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 | PREPARATION OF POLYOLEFIN |
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