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公开(公告)号:US20060106182A1
公开(公告)日:2006-05-18
申请号:US10523424
申请日:2003-07-29
申请人: Ole Myhre , Merete Skar , Hans Daviknes , Kjetil Borve , Geir JOhansen
发明人: Ole Myhre , Merete Skar , Hans Daviknes , Kjetil Borve , Geir JOhansen
IPC分类号: C08F10/00
CPC分类号: C08L23/06 , C08F297/083 , C08L23/0815 , Y10T428/31855 , C08L2666/06
摘要: A shrink film comprising a polyethylene film of thickness 5 to 500 μm, wherein the polyethylene comprises an ethylene homopolymer-copolymer mixture having a molecular weight distribution in the range of 5 to 40, and a weight average molecular weight of at least 100 kD.
摘要翻译: 一种包含厚度为5-500μm的聚乙烯薄膜的收缩薄膜,其中所述聚乙烯包括分子量分布在5至40范围内且重均分子量至少为100kD的乙烯均聚物 - 共聚物混合物。
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公开(公告)号:US20050271868A1
公开(公告)日:2005-12-08
申请号:US10523359
申请日:2003-07-29
申请人: Ole Myhre , Merete Skar , Hans Daviknes , Kjetil Brove , Geir Johansen
发明人: Ole Myhre , Merete Skar , Hans Daviknes , Kjetil Brove , Geir Johansen
IPC分类号: C08F210/16 , C08F297/08 , C08J5/18 , C08L23/08 , F16B4/00
CPC分类号: C08J5/18 , C08F210/16 , C08F297/083 , C08J2323/08 , C08L23/0815 , C08L2205/02 , Y10T428/13 , Y10T428/1303 , Y10T428/1328 , Y10T428/1352 , Y10T428/1359 , C08F2/001 , C08L2666/06 , C08F210/08 , C08F2500/12 , C08F2500/04 , C08F2500/26
摘要: A shrink film comprising a polyethylene film, characterized in that said polyethylene is an ethylene copolymer mixture having a molecular weight distribution in the range 10 to 35, a density of 915 to 940 kg/m3, a weight average molecular weight of at least 100000 D and an MFR2.16 (190° C.) of 0.1 to 0.9 kg/m3, which copolymer mixture is produced by a two or more stage copolymerization of ethylene and 2 to 10% mole (relative to ethylene) of a C3-12 alpha-olefin comonomer in a series of reactors including at least one slurry loop reactor and at least one gas phase reactor using a heterogeneous Ziegler-Natta catalyst.
摘要翻译: 一种包含聚乙烯膜的收缩膜,其特征在于,所述聚乙烯是分子量分布在10至35,密度为915至940kg / m 3的乙烯共聚物混合物,重量 平均分子量为至少100000D,MFR 2.16(190℃)为0.1至0.9kg / m 3,该共聚物混合物由两个或更多个 在包括至少一个淤浆环流反应器和至少一种气体的一系列反应器中,乙烯和2-10%摩尔(相对于乙烯)的C 3-12α-烯烃共聚单体的更多级共聚 使用异质齐格勒 - 纳塔催化剂。
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公开(公告)号:US20060167192A1
公开(公告)日:2006-07-27
申请号:US10519326
申请日:2003-06-19
申请人: Jari Aarila , Irene Helland , Ole Myhre , Jorunn Nilsen , Markku Vahteri
发明人: Jari Aarila , Irene Helland , Ole Myhre , Jorunn Nilsen , Markku Vahteri
IPC分类号: C08F2/00
CPC分类号: C08F297/083 , C08F210/16 , C08F297/08 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08F2/001 , C08L2666/06 , C08F210/08 , C08F2500/12 , C08F2500/05 , C08F2500/24 , C08F2500/26 , C08F4/6555 , C08F4/025
摘要: A process for producing bimodal linear low-density polyethylene polymer compositions, useful for making films. The polymer compositions have a melt flow rate MFR2 of 0.4 to 1.0 g/10 min and a density of 918 to 925 kn/m3. The process to produce the polymer compositions involves copolymerising ethylene with an alpha-olefin comonomer in a loop reactor to produce a low molecular weight polymer having a melt flow rate MFR2 of 50 to 500 g/10 min and a density of 945 to 953 kg/m3. The polymerisation is continued in a gas phase reactor to produce a high molecular weight polymer, such that the final polymer composition has the desired properties. The final composition contains from 41 to 48% by weight of the low molecular weight polymer and from 59 to 52% by weight of the high molecular weight polymer. The resulting films have an excellent visual appearance and good mechanical properties. The compositions can easily be converted to films. The process can be operated a long time without a shutdown.
摘要翻译: 一种生产用于制备薄膜的双峰线性低密度聚乙烯聚合物组合物的方法。 聚合物组合物的熔体流动速率MFR 2 <2>为0.4至1.0g / 10min,密度为918至925kn / m 3。 制备聚合物组合物的方法包括在环管反应器中将乙烯与α-烯烃共聚单体共聚以产生具有50至500g / 10min的熔体流动速率MFR 2/2的低分子量聚合物,以及 密度为945至953kg / m 3。 在气相反应器中继续聚合以产生高分子量聚合物,使得最终的聚合物组合物具有所需的性质。 最终组合物含有41至48重量%的低分子量聚合物和59至52重量%的高分子量聚合物。 所得膜具有优异的视觉外观和良好的机械性能。 组合物可以容易地转化成薄膜。 该过程可以长时间运行,无需关机。
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公开(公告)号:US20070161739A1
公开(公告)日:2007-07-12
申请号:US11587470
申请日:2005-04-25
IPC分类号: C08K3/34
摘要: Use of talc as a nucleating agent for linear low density polyethylene formed from ethylene and at least one C4-10 alpha-olefin comonomer, said polyethylene having a density below 940 g/cm3.
摘要翻译: 使用滑石作为由乙烯和至少一种C 4-10α-烯烃共聚单体形成的线性低密度聚乙烯的成核剂,所述聚乙烯的密度低于940g / cm 3, / SUP>。
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公开(公告)号:US20060014897A1
公开(公告)日:2006-01-19
申请号:US10517641
申请日:2003-06-19
申请人: Ole Myhre , Albin Mariacher , Jorunn Nilsen , Manfred Kirchberger
发明人: Ole Myhre , Albin Mariacher , Jorunn Nilsen , Manfred Kirchberger
CPC分类号: C08J5/18 , C08F210/16 , C08J2323/06 , C08L23/06 , C08L23/0815 , C08L23/10 , C08L2308/00 , C08L2314/04 , Y10T428/249921 , Y10T428/31 , C08L2666/04 , C08F4/6555 , C08F4/025 , C08F210/08 , C08F2500/12 , C08F2500/07 , C08F2/001 , C08F2500/24 , C08F2500/26 , C08F2500/05
摘要: A composition for preparing breathable films. The composition comprises a bimodal polyethylene composition, a particulate filler, and, optionally, an olefin-based polymer. The bimodial polyethylene composition has a melt flow rate MFR2 of 0.1 to 4 g/10 min. and a density of 918 to 935 kg/m3. The olefin-based polymer can be, e.g., polypropylene. The films prepared from the composition have a very high water vapour transmission rate, exceeding 3000 g/m2/24 hours.
摘要翻译: 一种用于制备透气膜的组合物。 组合物包含双峰聚乙烯组合物,颗粒填料和任选的基于烯烃的聚合物。 双峰聚乙烯组合物的熔体流动速率MFR 2 <2>为0.1至4g / 10min。 并且密度为918至935kg / m 3。 烯烃类聚合物可以是例如聚丙烯。 由组合物制备的膜具有非常高的水蒸汽透过率,超过3000g / m 2/24小时。
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