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公开(公告)号：EP4153677A1
公开(公告)日：2023-03-29
申请号：EP21726654.3
申请日：2021-05-19
申请人： Borealis AG
IPC分类号： C08L23/08 , C08F210/02 , H01B3/44 , C08F210/16
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2.发明公开MULTIMODAL COPOLYMER OF ETHYLENE AND AT LEAST TWO ALPHA-OLEFIN COMONOMERS AND FINAL ARTICLES MADE THEREOF 审中-公开乙烯和至少两种α-烯烃共聚体的多模共聚物及其制成的最终制品
公开(公告)号：EP3307814A1
公开(公告)日：2018-04-18
申请号：EP16727408.3
申请日：2016-05-30
申请人： Borealis AG
发明人： TUPE, Ravindra , JAMIESON, John , KELA, Jarmo , ALBUNIA, Alexandra, Romina , GODOY-LOPEZ, Ricardo , VAHTERI, Markku
CPC分类号： C08L23/0815 , B32B27/08 , B32B27/32 , B32B27/327 , B32B2250/242 , B32B2270/00 , B32B2307/54 , B32B2307/558 , B32B2307/5825 , B32B2307/708 , B32B2307/732 , B32B2439/46 , B32B2439/70 , B32B2553/00 , C08F2/001 , C08F210/16 , C08F2500/05 , C08F2500/26 , C08J5/18 , C08J2323/08 , C08L2203/16 , C08L2205/025 , C08F4/6555 , C08F4/025 , C08F210/08 , C08F2500/12 , C08F2500/08 , C08F210/14
摘要： The present invention is directed to a multimodal polyethylene copolymer comprising a first and a second copolymer of ethylene and at least two alpha-olefin comonomers. Such multimodal copolymers are highly suitable for conversion processes that require a high Draw Down Ratio, like the production of thin films. Such multimodal polyethylene copolymers provide a good impact strength in the sense of a high Dart drop impact strength (DDI) and good isotropy of the films produces thereof. The invention further presents final articles such as films made therefrom.
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公开(公告)号：EP3080168B1
公开(公告)日：2017-10-25
申请号：EP14816206.8
申请日：2014-12-12
申请人： Borealis AG
发明人： TUPE, Ravindra , AHO, Jani , VAHTERI, Markku , NOOPILA, Tuomas , KELA, Jarmo
IPC分类号： C08F2/00
CPC分类号： C08L23/0815 , C08F4/025 , C08F210/16 , C08L2205/025 , C08F210/08 , C08F2500/12 , C08F2500/26 , C08F2/001 , C08F4/6546 , C08F4/6565
摘要： The present invention is a process for producing low density copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages in the presence of an olefin polymerization catalyst where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low density of not more than 920 kg/m 3 .
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公开(公告)号：EP3201245A1
公开(公告)日：2017-08-09
申请号：EP15781307.2
申请日：2015-09-29
申请人： Borealis AG
IPC分类号： C08F110/02 , C08F4/655 , C08F2/14
CPC分类号： C08F110/02 , C08F4/6555 , C08F2/14 , C08F110/06 , C08F4/6492 , C08F4/651 , C08F2500/01 , C08F2500/18 , C08F2500/17 , C08F2500/24 , C08F4/6465
摘要： The present invention deals with a process for polymerising ethylene in the presence of an olefin polymerisation catalyst comprising titanium, magnesium and halogen in at least one polymerisation stage where ethylene is polymerised in slurry, the process comprising treating the polymerisation catalyst in a pre-treatment step by polymerising an olefin on the polymerisation catalyst so that the ratio of the weight of the olefin polymer to the weight of the original solid catalyst component is from 0.1 to 10 g/g and using the pre-treated catalyst in the production of ultra-high molecular weight polyethylene.
摘要翻译： 本发明涉及一种在至少一个聚合阶段中在包含钛，镁和卤素的烯烃聚合催化剂存在下聚合乙烯的方法，其中乙烯在淤浆中聚合，该方法包括在预处理步骤中处理聚合催化剂 通过在聚合催化剂上聚合烯烃使得烯烃聚合物的重量与原始固体催化剂组分的重量的比率为0.1至10g / g，并且使用预处理的催化剂制造超高 分子量聚乙烯。
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公开(公告)号：EP4126994A1
公开(公告)日：2023-02-08
申请号：EP21711900.7
申请日：2021-03-17
申请人： Borealis AG
发明人： JAMIESON, John , TUPE, Ravindra , LESKINEN, Pauli , KELA, Jarmo
IPC分类号： C08F210/16 , C08L23/08 , C08J5/18
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公开(公告)号：EP3307813B1
公开(公告)日：2019-12-25
申请号：EP16726534.7
申请日：2016-05-30
申请人： Borealis AG
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公开(公告)号：EP3464457A1
公开(公告)日：2019-04-10
申请号：EP17731075.2
申请日：2017-05-29
申请人： Borealis AG
发明人： LIU, Yi , SUMERIN, Victor , TUPE, Ravindra
IPC分类号： C08L23/08
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公开(公告)号：EP3055335B1
公开(公告)日：2018-12-12
申请号：EP14776587.9
申请日：2014-09-24
申请人： Borealis AG
发明人： TYNYS, Antti , KELA, Jarmo , TUPE, Ravindra , PIEL, Tanja
IPC分类号： C08F2/00 , C08L23/06 , F16L9/12 , C08F210/16
CPC分类号： C08L23/06 , C08F210/16 , C08L2203/18 , C08L2205/025 , F16L9/12 , C08L23/0815 , C08F2/001 , C08F210/06 , C08F210/14 , C08F2500/05 , C08F2500/12 , C08F2500/07 , C08F2500/17
摘要： The present invention is concerned with a polyethylene composition comprising a base resin having a density of more than 952.0 kg/m 3 and equal to or less than 957.0 kg/m 3 , wherein the composition has a melt flow rate MFR 5 of 0.12 to 0.21 g/10min and the polyethylene composition has a polydispersity index PI within the range of higher than 4.9 Pa -1 and equal to or less than 9.0 Pa -1 . Furthermore, the present invention concerns a polyethylene composition obtainable by a multistage process, the multistage process comprising polymerizing ethylene in the presence of a silica supported Ziegler Natta catalyst in a reactor cascade comprising a first loop reactor, a second loop reactor and a gas phase reactor for obtaining the base resin and then extruding the base resin together with stabilizers and carbon black into the polyethylene composition. Furthermore, the present invention relates to an article, such as a pipe, made from the polyethylene composition and the use of the polyethylene composition for the production of such an article.
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公开(公告)号：EP3080171B1
公开(公告)日：2018-05-02
申请号：EP14809897.3
申请日：2014-12-12
申请人： Borealis AG
发明人： LIU, Yi , JAMIESON, John , TUPE, Ravindra , KELA, Jarmo
IPC分类号： C08F210/02 , C08F2/00 , C08F10/02
CPC分类号： C08F210/16 , C08F2/001 , C08J5/18 , C08J2323/08 , C08L23/0815 , C08L2205/025 , C08L2205/03 , C08F210/08 , C08F2500/07 , C08F2500/12 , C08F2500/26 , C08F2500/08 , C08F4/025 , C08F4/6492 , C08F4/6555
摘要： The present invention is a process for producing copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low content of extractable material and can be extruded to films which can be used in food contact applications.
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