-
公开(公告)号：EP1532203B1
公开(公告)日：2006-08-30
申请号：EP03771173.6
申请日：2003-07-29
发明人： MYHRE, Ole, Jan , SKAR, Merete , DAVIKNES, Hans, Georg , BORVE, Kjetil, Larsen , JOHANSEN, Geir, Morten
IPC分类号： C08L23/04 , C08L23/08 , C08F297/08
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, characterized in that said polyethylene comprises an ethylene homopolymer-copolymer mixture having a molecular weight distribution in the range 5 to 40, and a weight average molecular weight of at least 100 kD.
-
2.发明授权
公开(公告)号：EP1802670B1
公开(公告)日：2013-12-04
申请号：EP05797791.0
申请日：2005-10-19
IPC分类号： C08F210/16 , C08J5/18
CPC分类号： C08F210/16 , C08J5/18 , C08J2323/08 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F2500/19 , C08F2500/26
-
公开(公告)号：EP1294564B1
公开(公告)日：2006-01-04
申请号：EP01943686.4
申请日：2001-06-29
发明人： ÄÄRILÄ, Jari , SKAR, Merete , LEHTINEN, Arja , KALLIO, Kalle
CPC分类号： B32B27/08 , B32B27/32 , B32B27/327 , B32B2250/242 , B32B2307/31 , B32B2307/412 , B32B2307/558 , B32B2307/72 , B32B2439/70 , B32B2439/80 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , Y10T428/2817 , Y10T428/2878 , Y10T428/31855 , Y10T428/31913 , Y10T428/31938 , C08L2666/06
摘要： A process for the preparation of a heat sealable film comprising a core layer and a sealing layer, said process comprising attaching said core layer to said sealing layer, said sealing layer comprising an ethylene copolymer composition in which: (1) there are two distinct maxima in the TREF fractogram of the ethylene copolymer composition; (2) at lest 10 %, of the ethylene copolymer composition elutes in TREF at a temperature of less than 50 °C; (3) at least 25 %, of the ethylene copolymer composition elutes in TREF at a temperature of higher than 75 °C; (4) none of the ethylene copolymer composition elutes in TREF at a temperature of higher than 100 °C; (5) the ethylene copolymer composition comprises two components, one of which is of relatively high comonomer content and high molecular weight, the other of which is of relatively low comonomer content and low molecular weight, both components being prepared by polymerisation of ethylene with a C3-20 alpha-olefin in the present of a single site catalyst; (6) the ethylene copolymer composition has a density of between 905 and 930 kg/m3, and an MFR¿2? between 0.3 and 4.0 g/10 min.
-
公开(公告)号：EP1551891A1
公开(公告)日：2005-07-13
申请号：EP03771171.0
申请日：2003-07-29
发明人： MYHRE, Ole, Jan , SKAR, Merete , DAVIKNES, Hans, Georg , BROVE, Kjetil, Larsen , JOHANSEN, Geir, Morten
IPC分类号： C08F297/08 , C08L23/08
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： 一种包含聚乙烯薄膜的收缩薄膜，其特征在于所述聚乙烯是分子量分布为10-35，密度为915-940kg / m 3，重均分子量至少为100000D的乙烯共聚物混合物 以及0.1至0.9kg / m 3的MFR 2.16（190℃），所述共聚物混合物通过乙烯和2至10摩尔％（相对于乙烯而言）的C3-12α-烯烃共聚物的两个或更多个阶段的共聚产生， 烯烃共聚单体在一系列反应器中进行，所述一系列反应器包括至少一个淤浆回路反应器和至少一个使用非均相齐格勒 - 纳塔催化剂的气相反应器。
-
5.发明授权POLYMER COMPOSITION, A PROCESS FOR THE PRODUCTION THEREOF AND FILMS PREPARED THEREOF 有权聚合物组成，方法用于生产和薄膜由其MADE
公开(公告)号：EP1159313B1
公开(公告)日：2003-09-10
申请号：EP00901157.8
申请日：2000-01-04
发明人： SKAR, Merete , MYHRE, Ole-Jan , LEHTINEN, Arja , HOKKANEN, Harri , KNUUTTILA, Hilkka , KALLIO, Kalle , KINNUNEN, Esa , SALO, Eija
IPC分类号： C08F10/02
CPC分类号： C08F10/02 , C08F4/65912 , C08F4/65916 , C08F110/02 , C08F210/16 , C08F4/65925 , C08F2/001 , C08F4/65927 , C08F2500/12 , C08F2500/07 , C08F2500/26 , C08F210/08
摘要： This invention concerns process for producing polyethylene compositions, films prepared thereof and process for the preparation of the films. The process comprises subjecting ethylene, optionally hydrogen and comonomers to polymerization or copolymerization reactions in a multistage polymerization. At least one polymerization stage is conducted essentially in the absence of hydrogen. The polymerization reactions are carried out in the presence of a single-site catalyst capable of forming a composition comprising a low molecular weight component with MFR2 of at least 10 g/10 min and a density higher than the density of the composition and a high molecular weight component. The melt flow rate of the composition is in the range MFR2 = 0.1 - 5.0 g/10 min and the density of the composition is 915 - 960 kg/m3. The invention makes it possible to produce polyethylene compositions for manufacturing films with a good balance between optical and mechanical properties.
-
公开(公告)号：EP1294564A1
公开(公告)日：2003-03-26
申请号：EP01943686.4
申请日：2001-06-29
发明人： ÄÄRILÄ, Jari , SKAR, Merete , LEHTINEN, Arja , KALLIO, Kalle
CPC分类号： B32B27/08 , B32B27/32 , B32B27/327 , B32B2250/242 , B32B2307/31 , B32B2307/412 , B32B2307/558 , B32B2307/72 , B32B2439/70 , B32B2439/80 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2314/06 , Y10T428/2817 , Y10T428/2878 , Y10T428/31855 , Y10T428/31913 , Y10T428/31938 , C08L2666/06
摘要： A process for the preparation of a heat sealable film comprising a core layer and a sealing layer, said process comprising attaching said core layer to said sealing layer, said sealing layer comprising an ethylene copolymer composition in which: (1) there are two distinct maxima in the TREF fractogram of the ethylene copolymer composition; (2) at lest 10 %, of the ethylene copolymer composition elutes in TREF at a temperature of less than 50 °C; (3) at least 25 %, of the ethylene copolymer composition elutes in TREF at a temperature of higher than 75 °C; (4) none of the ethylene copolymer composition elutes in TREF at a temperature of higher than 100 °C; (5) the ethylene copolymer composition comprises two components, one of which is of relatively high comonomer content and high molecular weight, the other of which is of relatively low comonomer content and low molecular weight, both components being prepared by polymerisation of ethylene with a C3-20 alpha-olefin in the present of a single site catalyst; (6) the ethylene copolymer composition has a density of between 905 and 930 kg/m3, and an MFR¿2? between 0.3 and 4.0 g/10 min.
-
公开(公告)号：EP2106421B2
公开(公告)日：2016-06-29
申请号：EP08707239.3
申请日：2008-01-24
发明人： HELLAND, Irene , SKAR, Merete
CPC分类号： C08L23/06 , C08J5/18 , C08J2323/04 , C08L23/0815 , Y10T428/31855 , Y10T428/31938 , C08L2666/06
-
公开(公告)号：EP1814941B1
公开(公告)日：2009-12-09
申请号：EP05797913.0
申请日：2005-10-21
发明人： FOLLESTAD, Arild , PALMLÖF, Magnus , NORD-VARHAUG, Katrin , HELLAND, Irene , SKAR, Merete , EGGEN, Svein , JOHANSEN, Arno , NILSEN, Jorunn
IPC分类号： C08L23/06 , C08J5/18 , C08F2/00 , C08F297/08
CPC分类号： C08L23/0815 , B29L2023/001 , C08F210/16 , C08J5/18 , C08J2323/06 , C08L23/06 , C08L2205/02 , C08L2205/03 , C08L2314/06 , C08L2666/06 , C08L2666/02 , C08F210/14 , C08F2500/12 , C08F2500/17 , C08F2500/26
摘要： A polyethylene composition comprising at least a first composition and a second composition in amounts of at least 70 wt% of the first composition which comprises at least: (A) up to 60 wt% lower molecular weight (LMW) polyethylene homo or copolymer obtained by Ziegler-Natta catalysis having a density of at least 940 kg/m3; and (B) up to 60 wt% higher molecular weight (HMW) polyethylene homo or copolymer obtained by Ziegler-Natta catalysis and having lower density than component (A); and up to 30 wt% of the second composition which comprises: (C) a polyethylene homo or copolymer obtained by single site catalysis (SSC) and having a density of up to 980 kg/m3; wherein said polyethylene composition has a charpy impact strength at -20°C, according to ISO 179-3 on compression moulded plates of at least 2.5 kJ/m2 and density at least 925 kg/m3.
-
公开(公告)号：EP1838744A1
公开(公告)日：2007-10-03
申请号：EP05823491.5
申请日：2005-12-22
发明人： LEHTINEN, Arja , SKAR, Merete , LINDROOS, Jarmo , MAARANEN, Janne , VAHTERI, Markku , EKLIND, Hans , PÖHLER, Holger , KRAJETE, Alexander
IPC分类号： C08F297/08 , C08F297/06 , C08F210/16 , C08L23/08
CPC分类号： C08L23/0815 , C08J5/18 , C08J7/04 , C08J2323/08 , C08J2423/08 , C08L2205/02 , C08L2308/00 , C08L2666/06
摘要： A multimodal copolymer of ethylene comprising at least (i) a lower molecular weight fraction of a copolymer of ethylene and at least one alpha-olefin comonomer and (ii) a higher molecular weight fraction of a copolymer of ethylene and at least one alpha-olefin comonomer, wherein said copolymer has a density below 920 kg/m3.
-
10.发明公开
公开(公告)号：EP1802670A1
公开(公告)日：2007-07-04
申请号：EP05797791.0
申请日：2005-10-19
IPC分类号： C08F210/16 , C08J5/18
CPC分类号： C08F210/16 , C08J5/18 , C08J2323/08 , C08F210/14 , C08F2500/03 , C08F2500/12 , C08F2500/19 , C08F2500/26
摘要： A unimodal LLDPE formed from ethylene and at least one C3-12 alpha-olefin comonomer by single site catalysis having the following properties: a density of 915-950 kg /m3; MFR2 in the range 0.5 to 6; Mw/Mn in the range 2.5 to 4; a shear thinning SHI (1/100) of at least 1.7; a comonomer content of 2 to 10 wt% ; a melting temperature (Tm) of 115 to 128°C; and no long chain branching.
-
-
-
-
-
-
-
-
-
搜索结果
22 条记录 (耗时 0.015 秒)
