Multimodal polyethylene composition for pipes
The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alpha-olefin comonomer having...
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| creator | BAECKMAN, MATS GUSTAFSSON, BILL VAN PRAET, ERIC |
| description | The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alpha-olefin comonomer having at least 4 carbon atoms,
wherein (i) fraction (A) has a lower average molecular weight than fraction (B), and (ii) the comonomer content and the density d of the base resin satisfy the following relation: comonomer [ mol % ] ¥ - 0.0612 d [ kg / m 3 ] mol % ( kg / m 3 ) + 58.6 , and (iii) the base resin comprises more than 0.5 mol% of at least one alpha-olefin comonomer having at least 4 carbon atoms. Furthermore, the present invention relates to a process for the production of said composition, a pipe comprising said composition and to the use of said composition for the production of a pipe. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP1655333B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP1655333B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP1655333B13</originalsourceid><addsrcrecordid>eNrjZND1Lc0pyczNT0nMUSjIz6lMLcmozEnNS1VIzs8tyC_OLMnMz1NIyy9SKMgsSC3mYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyUCtJfGuAYZmpqbGxsZOhsZEKAEAzT0qiA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Multimodal polyethylene composition for pipes</title><source>esp@cenet</source><creator>BAECKMAN, MATS ; GUSTAFSSON, BILL ; VAN PRAET, ERIC</creator><creatorcontrib>BAECKMAN, MATS ; GUSTAFSSON, BILL ; VAN PRAET, ERIC</creatorcontrib><description>The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alpha-olefin comonomer having at least 4 carbon atoms,
wherein (i) fraction (A) has a lower average molecular weight than fraction (B), and (ii) the comonomer content and the density d of the base resin satisfy the following relation: comonomer [ mol % ] ¥ - 0.0612 d [ kg / m 3 ] mol % ( kg / m 3 ) + 58.6 , and (iii) the base resin comprises more than 0.5 mol% of at least one alpha-olefin comonomer having at least 4 carbon atoms. Furthermore, the present invention relates to a process for the production of said composition, a pipe comprising said composition and to the use of said composition for the production of a pipe.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2007</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=20070905&DB=EPODOC&CC=EP&NR=1655333B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070905&DB=EPODOC&CC=EP&NR=1655333B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BAECKMAN, MATS</creatorcontrib><creatorcontrib>GUSTAFSSON, BILL</creatorcontrib><creatorcontrib>VAN PRAET, ERIC</creatorcontrib><title>Multimodal polyethylene composition for pipes</title><description>The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alpha-olefin comonomer having at least 4 carbon atoms,
wherein (i) fraction (A) has a lower average molecular weight than fraction (B), and (ii) the comonomer content and the density d of the base resin satisfy the following relation: comonomer [ mol % ] ¥ - 0.0612 d [ kg / m 3 ] mol % ( kg / m 3 ) + 58.6 , and (iii) the base resin comprises more than 0.5 mol% of at least one alpha-olefin comonomer having at least 4 carbon atoms. Furthermore, the present invention relates to a process for the production of said composition, a pipe comprising said composition and to the use of said composition for the production of a pipe.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</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>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZND1Lc0pyczNT0nMUSjIz6lMLcmozEnNS1VIzs8tyC_OLMnMz1NIyy9SKMgsSC3mYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyUCtJfGuAYZmpqbGxsZOhsZEKAEAzT0qiA</recordid><startdate>20070905</startdate><enddate>20070905</enddate><creator>BAECKMAN, MATS</creator><creator>GUSTAFSSON, BILL</creator><creator>VAN PRAET, ERIC</creator><scope>EVB</scope></search><sort><creationdate>20070905</creationdate><title>Multimodal polyethylene composition for pipes</title><author>BAECKMAN, MATS ; GUSTAFSSON, BILL ; VAN PRAET, ERIC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1655333B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2007</creationdate><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</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>BAECKMAN, MATS</creatorcontrib><creatorcontrib>GUSTAFSSON, BILL</creatorcontrib><creatorcontrib>VAN PRAET, ERIC</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BAECKMAN, MATS</au><au>GUSTAFSSON, BILL</au><au>VAN PRAET, ERIC</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Multimodal polyethylene composition for pipes</title><date>2007-09-05</date><risdate>2007</risdate><abstract>The present invention relates to a multimodal polyethylene composition for pipes which comprises polyethylene composition comprising a base resin which comprises (A) an ethylene homo- or copolymer fraction, and (B) an ethylene copolymer fraction comprising at least one alpha-olefin comonomer having at least 4 carbon atoms,
wherein (i) fraction (A) has a lower average molecular weight than fraction (B), and (ii) the comonomer content and the density d of the base resin satisfy the following relation: comonomer [ mol % ] ¥ - 0.0612 d [ kg / m 3 ] mol % ( kg / m 3 ) + 58.6 , and (iii) the base resin comprises more than 0.5 mol% of at least one alpha-olefin comonomer having at least 4 carbon atoms. Furthermore, the present invention relates to a process for the production of said composition, a pipe comprising said composition and to the use of said composition for the production of a pipe.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Multimodal polyethylene composition for pipes |
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