Modified Polyethylene Compositions for Cast Film
    2.
    发明申请
    Modified Polyethylene Compositions for Cast Film 有权
    改性聚乙烯组合物用于铸膜

    公开(公告)号:US20130209774A1

    公开(公告)日:2013-08-15

    申请号:US13851752

    申请日:2013-03-27

    Abstract: The present invention relates to a cast film comprising a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g′vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g′vis of 0.90 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 3.0 or more; d) an Mz/Mn of 7.0 or more; e) a shear thinning ratio of 40 or more; and f) an I21 of 20 dg/min or less; where the film has at least a 10% reduction in neck-in as compared to the same composition formed into a film under the same conditions, except that the branched modifier is absent.

    Abstract translation: 本发明涉及一种包含组合物的流延薄膜,该组合物包含大于25wt%(基于组合物的重量)的一种或多种线性乙烯聚合物,其g'vis为0.97以上,Mw为20,000g / mol 或更多和至少0.1重量%的支化改性剂,其中改性剂具有a)g'vis为0.90以下; b)Mw为100,000g / mol以上; c)Mw / Mn为3.0以上; d)Mz / Mn为7.0以上; e)剪切稀化比为40以上; 和f)20dg / min以下的I21; 除了不存在支化改性剂之外,与相同条件下形成膜的相同组合物相比,膜的颈缩度至少降低10%。

    Modified polyethylene compositions with enhanced melt strength

    公开(公告)号:US11180644B2

    公开(公告)日:2021-11-23

    申请号:US16502256

    申请日:2019-07-03

    Abstract: The present invention relates to a branched modifier and a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g′vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g′vis of 0.70 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 4.0 or more; d) a shear thinning ratio of 110 or more, e) a melt strength of 10 cN or more; f) a complex viscosity at 0.1 rad/sec at 190° C. of at least 130,000 Pa·s; and g) a phase angle of Z° or less where Z=138.3G*(−0.142), where G* is the complex modulus reported in Pascals measured at 190° C. and the phase angle units are reported in degrees, wherein the G* is from 1,000 to 1,000,000 Pa.

    Modified polyethylene compositions for cast film
    7.
    发明授权
    Modified polyethylene compositions for cast film 有权
    用于流延膜的改性聚乙烯组合物

    公开(公告)号:US09321911B2

    公开(公告)日:2016-04-26

    申请号:US13851752

    申请日:2013-03-27

    Abstract: The present invention relates to a cast film comprising a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g′vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g′vis of 0.90 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 3.0 or more; d) an Mz/Mn of 7.0 or more; e) a shear thinning ratio of 40 or more; and f) an I21 of 20 dg/min or less; where the film has at least a 10% reduction in neck-in as compared to the same composition formed into a film under the same conditions, except that the branched modifier is absent.

    Abstract translation: 本发明涉及包含组合物的流延薄膜,该组合物包含大于25wt%(基于组合物的重量)的一种或多种线性乙烯聚合物,其具有0.97以上的Mw和20,000g / mol的Mw, 更多和至少0.1重量%的支化改性剂,其中改性剂的a'ag'vis为0.90以下; b)Mw为100,000g / mol以上; c)Mw / Mn为3.0以上; d)Mz / Mn为7.0以上; e)剪切稀化比为40以上; 和f)20dg / min以下的I21; 除了不存在支化改性剂之外,与相同条件下形成膜的相同组合物相比,膜的颈缩度至少降低10%。

    HDPE Modified Polyethylene Blown Film Compositions Having Excellent Bubble Stability
    8.
    发明申请
    HDPE Modified Polyethylene Blown Film Compositions Having Excellent Bubble Stability 审中-公开
    具有优异泡沫稳定性的HDPE改性聚乙烯吹膜组合物

    公开(公告)号:US20140155553A1

    公开(公告)日:2014-06-05

    申请号:US14086450

    申请日:2013-11-21

    Abstract: The present invention relates to polyethylene compositions comprising one or more ethylene polymers and one or more HDPE modifiers, in particular, this invention further relates to polyethylene blends comprising one or more ethylene polymers and one or more HDPE modifiers, wherein the modifier has: 1) a density of greater than 0.94 g/cc; 2) a Mw/Mn greater than 5; 3) a melt index (ASTM 1238, 190° C., 2.16 kg) of less than 0.7 dg/min; and 4) a g′vis of 0.96 or less.

    Abstract translation: 本发明涉及包含一种或多种乙烯聚合物和一种或多种HDPE改性剂的聚乙烯组合物,特别地,本发明还涉及包含一种或多种乙烯聚合物和一种或多种HDPE改性剂的聚乙烯共混物,其中改性剂具有:1) 密度大于0.94g / cc; 2)Mw / Mn大于5; 3)小于0.7dg / min的熔体指数(ASTM 1238,190℃,2.16kg); 和4)g'vis为0.96以下。

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