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公开(公告)号:US06800692B2
公开(公告)日:2004-10-05
申请号:US10311528
申请日:2003-03-24
申请人: James McLeod Farley , Richard Wayne Halle , George Panagopoulous , Donna Sue Davis , Douglas J. Laurent , Alan M. Malakoff , David M. Simpson , Kevin Cable
发明人: James McLeod Farley , Richard Wayne Halle , George Panagopoulous , Donna Sue Davis , Douglas J. Laurent , Alan M. Malakoff , David M. Simpson , Kevin Cable
IPC分类号: C08F800
CPC分类号: C08L23/0815 , C08L23/04 , Y10T428/31855 , C08L2666/06
摘要: The present invention provides a polymer blend suitable for use as a film or a coating, the polymer blend including from 1 to 99% by weight of a metallocene-produced VLDPE polymer having a density less than 0.916 g/cm3, and from 1 to 99% by weight of an LDPE polymer having a density of from 0.916 to 0.928 g/cm3 wherein the sum of (a) and (b) is 100%. The VLDPE polymer can have a melt index of from 6 to 15 dg/min, or from 9 to 12 dg/min. The present invention further provides polymeric films extrusion cast from such polymer blends, and articles having a flexible substrate and a polymeric film extrusion-coated on the substrate
摘要翻译: 本发明提供一种适合用作膜或涂层的聚合物共混物,所述聚合物共混物包括1至99重量%的茂金属生产的密度小于0.916g / cm 3的VLDPE聚合物, 1至99重量%的密度为0.916至0.928g / cm 3的LDPE聚合物,其中(a)和(b)的总和为100%。 VLDPE聚合物的熔体指数可以为6至15dg / min,或9至12dg / min。 本发明进一步提供了由这种聚合物共混物挤压成型的聚合物膜,以及具有柔性基材和挤出涂布在基材上的聚合物膜的制品
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公开(公告)号:US06932592B2
公开(公告)日:2005-08-23
申请号:US10311114
申请日:2001-06-22
申请人: James M. Farley , Richard W. Halle , George Panagopoulos , Jerry M. Johnson , Douglas J. Laurent , Alan M. Malakoff
发明人: James M. Farley , Richard W. Halle , George Panagopoulos , Jerry M. Johnson , Douglas J. Laurent , Alan M. Malakoff
CPC分类号: C08L23/0815 , C08L2205/02 , C08L2205/025 , C08L2308/00 , C08L2314/06 , Y10S526/943 , Y10T428/31692 , Y10T428/31899 , Y10T428/31909 , C08L2666/06
摘要: A very low density polyethylene having a density of 0.890 to 0.915 and a Dart Drop value of at least about 450 g/mil or above is disclosed. Gas phase polymerization methods are also disclosed for making very low density linear polyolefins utilizing a metallocene catalyst, and the resulting polyolefin products. In a specific embodiment, a gas phase polymerization process is disclosed relating to the formation of a linear polyethylene having a very low density, e.g., ranging from 0.890 to 0.915, but with improved toughness.
摘要翻译: 公开了一种密度为0.890至0.915,Dart Drop值至少约450g / mil或更高的极低密度聚乙烯。 还公开了气相聚合方法,用于制备使用茂金属催化剂的非常低密度的直链聚烯烃,以及得到的聚烯烃产物。 在一个具体实施方案中,公开了一种气相聚合方法,其涉及形成具有非常低的密度,例如0.890至0.915,但具有改善的韧性的线性聚乙烯。
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公开(公告)号:US4880682A
公开(公告)日:1989-11-14
申请号:US171730
申请日:1988-03-22
CPC分类号: A61F13/51478 , A61F13/51476 , B29C55/023 , B32B25/08 , A61F2013/51429 , B29K2995/0024 , Y10T428/24446 , Y10T428/24826 , Y10T428/26 , Y10T428/266 , Y10T428/31913 , Y10T428/31917 , Y10T428/3192
摘要: A multilayer film comprises a elastomeric core layer and at least one thermoplastic skin layer having a microundulating surface configuration providing the film with a low gloss.
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公开(公告)号:US4436520A
公开(公告)日:1984-03-13
申请号:US332367
申请日:1981-12-21
CPC分类号: C08J5/18 , A61L15/24 , C08J2323/02 , Y10T428/24479 , Y10T428/24612 , Y10T428/26 , Y10T428/31938
摘要: The adhesion property of a surface of a polyolefin film, for example a polyethylene film, having a gloss of less than about 8 is enhanced with the mean value of the maximum profile height less than 150 and with mean maximum peak to valley height less than 230.
摘要翻译: 具有小于约8的光泽度的聚烯烃膜,例如聚乙烯膜的表面的粘合性能增强,最大轮廓高度的平均值小于150,平均最大峰谷高度小于230 。
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