JPS646211B

In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the...

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Hauptverfasser:	NAITO YUKIO, YAMASHITA KATSUYOSHI, KAKUGO MASAHIRO, SHIGA AKINOBU, MATSUYAMA NORYOSHI, KON SEIICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	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
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creator	NAITO YUKIO YAMASHITA KATSUYOSHI KAKUGO MASAHIRO SHIGA AKINOBU MATSUYAMA NORYOSHI KON SEIICHIRO
description	In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula: R1-O-R2 wherein R1 and R2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X1X2a (wherein X1, X2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.
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The propylene-ethylene copolymer is improved in stretchability.</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>1989</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=19890202&DB=EPODOC&CC=JP&NR=S646211B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890202&DB=EPODOC&CC=JP&NR=S646211B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAITO YUKIO</creatorcontrib><creatorcontrib>YAMASHITA KATSUYOSHI</creatorcontrib><creatorcontrib>KAKUGO MASAHIRO</creatorcontrib><creatorcontrib>SHIGA AKINOBU</creatorcontrib><creatorcontrib>MATSUYAMA NORYOSHI</creatorcontrib><creatorcontrib>KON SEIICHIRO</creatorcontrib><title>JPS646211B</title><description>In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula: R1-O-R2 wherein R1 and R2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X1X2a (wherein X1, X2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.</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>1989</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZODyCgg2MzEzMjR04mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8QgNTkbGxKgBADbSG74</recordid><startdate>19890202</startdate><enddate>19890202</enddate><creator>NAITO YUKIO</creator><creator>YAMASHITA KATSUYOSHI</creator><creator>KAKUGO MASAHIRO</creator><creator>SHIGA AKINOBU</creator><creator>MATSUYAMA NORYOSHI</creator><creator>KON SEIICHIRO</creator><scope>EVB</scope></search><sort><creationdate>19890202</creationdate><title>JPS646211B</title><author>NAITO YUKIO ; YAMASHITA KATSUYOSHI ; KAKUGO MASAHIRO ; SHIGA AKINOBU ; MATSUYAMA NORYOSHI ; KON SEIICHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS646211BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1989</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>NAITO YUKIO</creatorcontrib><creatorcontrib>YAMASHITA KATSUYOSHI</creatorcontrib><creatorcontrib>KAKUGO MASAHIRO</creatorcontrib><creatorcontrib>SHIGA AKINOBU</creatorcontrib><creatorcontrib>MATSUYAMA NORYOSHI</creatorcontrib><creatorcontrib>KON SEIICHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAITO YUKIO</au><au>YAMASHITA KATSUYOSHI</au><au>KAKUGO MASAHIRO</au><au>SHIGA AKINOBU</au><au>MATSUYAMA NORYOSHI</au><au>KON SEIICHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>JPS646211B</title><date>1989-02-02</date><risdate>1989</risdate><abstract>In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula: R1-O-R2 wherein R1 and R2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X1X2a (wherein X1, X2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.5 mol % to obtain a propylene-ethylene copolymer having an ethylene content of from 0.1 to 1.0 wt % is disclosed. The propylene-ethylene copolymer is improved in stretchability.</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	JPS646211B
url	https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-12T20%3A07%3A12IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=NAITO%20YUKIO&rft.date=1989-02-02&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPS646211BB2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true