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公开(公告)号：EP2121318A1
公开(公告)日：2009-11-25
申请号：EP07856918.3
申请日：2007-12-19
IPC分类号： B32B27/32
CPC分类号： B32B27/32 , Y10T428/1334 , Y10T428/31917
摘要： The present invention provides a uniaxially oriented multilayer film comprising at least (i) a layer (A) and (ii) a layer (B), wherein said layer (A) comprises a linear low density polyethylene (LLDPE) comprising (e.g. selected from): - a multimodal LLDPE produced using a Ziegler Natta catalyst (znLLDPE), or - a LLDPE produced using a single site catalyst (mLLDPE) or - a mixture of a mLLDPE and a multimodal znLLDPE, said layer (B) comprises a multimodal LLDPE, and said multilayer film is in the form of a stretched film which is uniaxially oriented in the machine direction (MD) in a draw ratio of at least 1:3.
摘要翻译： 本发明提供一种单轴取向多层膜，其至少包含（i）层（A）和（ii）层（B），其中所述层（A）包含线性低密度聚乙烯（LLDPE） ）： - 使用齐格勒纳塔催化剂（znLLDPE）生产的多峰LLDPE，或 - 使用单中心催化剂（mLLDPE）或者mLLDPE和多峰znLLDPE的混合物制备的LLDPE，所述层（B）包含多峰LLDPE ，并且所述多层膜为拉伸膜形式，其在纵向（MD）上以至少1：3的拉伸比单轴取向。
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公开(公告)号：EP2121317A1
公开(公告)日：2009-11-25
申请号：EP07856917.5
申请日：2007-12-19
IPC分类号： B32B27/32
CPC分类号： B32B27/32 , B32B27/308 , B32B27/327 , B32B2250/24 , B32B2250/242 , B32B2250/246 , B32B2270/00 , B32B2307/516 , B32B2439/46 , Y10T428/31797 , Y10T428/31938
摘要： The invention provides a uniaxially oriented multilayer film comprising at least: (i) an outer layer (B) and (ii) an inner layer (C), wherein said layer (B) (i) comprises a multimodal linear low density polyethylene (LLDPE), said layer (C) (ii) comprises at least one polymer component which has a Tm
摘要翻译： 本发明提供一种单轴取向多层膜，其至少包含：（i）外层（B）和（ii）内层（C），其中所述层（B）（i）包含多峰线型低密度聚乙烯（LLDPE ），所述层（C）（ii）包含至少一种Tm <100℃的聚合物组分，并且所述多层膜为拉伸膜形式，其在拉伸的纵向（MD）单轴取向 比例至少为1：3。
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公开(公告)号：EP2121318B1
公开(公告)日：2010-06-02
申请号：EP07856918.3
申请日：2007-12-19
IPC分类号： B32B27/32
CPC分类号： B32B27/32 , Y10T428/1334 , Y10T428/31917
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公开(公告)号：EP1054927B1
公开(公告)日：2004-11-10
申请号：EP99903699.9
申请日：1999-02-10
CPC分类号： C08F10/02 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08F2/001 , C08L2666/04
摘要： The present invention concerns a polyethylene composition particularly suitable for film blowing. The invention also concerns a process for the production thereof. The composition comprises a low molecular weight portion having a density of more than 960 Kg/m3 and a high molecular weight portion. The polyethylene composition has a density of about 925-940 Kg/m3 and a melt flow rate in the range of MFR¿21? from 5 to 40 g/10 min. A polyethylene film blown from the polyethylene composition exhibits a tensile strength at yield in transverse direction at least 15 MPa, a 1 % secant modulus in machine direction at least 300 MPa and in transverse direction at least 400 MPa, and a dart drop of at least 5 g/νm.
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公开(公告)号：EP1054927A1
公开(公告)日：2000-11-29
申请号：EP99903699.9
申请日：1999-02-10
CPC分类号： C08F10/02 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08F2/001 , C08L2666/04
摘要： The present invention concerns a polyethylene composition particularly suitable for film blowing. The invention also concerns a process for the production thereof. The composition comprises a low molecular weight portion having a density of more than 960 Kg/m3 and a high molecular weight portion. The polyethylene composition has a density of about 925-940 Kg/m3 and a melt flow rate in the range of MFR¿21? from 5 to 40 g/10 min. A polyethylene film blown from the polyethylene composition exhibits a tensile strength at yield in transverse direction at least 15 MPa, a 1 % secant modulus in machine direction at least 300 MPa and in transverse direction at least 400 MPa, and a dart drop of at least 5 g/νm.
摘要翻译： 本发明涉及特别适用于吹膜的聚乙烯组合物。 本发明还涉及其生产方法。 该组合物包含密度大于960Kg / m 3的低分子量部分和高分子量部分。 该聚乙烯组合物的密度为约925-940Kg / m 3，熔体流动速率为MFR≥21？ 从5到40克/ 10分钟。 由聚乙烯组合物吹塑的聚乙烯薄膜在横向上的屈服拉伸强度为至少15MPa，纵向上1％正割模量至少300MPa，横向至少400MPa，并且镖滴至少为 5克/νm。
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