METHOD AND APPARATUS FOR TAKING SAMPLE
    2.
    发明申请
    METHOD AND APPARATUS FOR TAKING SAMPLE 审中-公开
    采样方法和装置

    公开(公告)号:WO1996035936A1

    公开(公告)日:1996-11-14

    申请号:PCT/FI1996000270

    申请日:1996-05-13

    Abstract: A method and an apparatus for taking sample from a flowing suspension formed by polymer particles and hydrocarbon diluent in olefin polymerization, which comprises at least one filter means situated at the plane of inside surface of flow space, which filter means is furnished with such perforation, where the size of pores is essentially smaller than the smallest particle size of the catalyst used in the polymerization. The perforation size of the filter means is preferably 0.1-10 mu m, preferably between 0.2-1 mu m.

    Abstract translation: 一种用于从烯烃聚合中由聚合物颗粒和烃稀释剂形成的流动悬浮液中取样的方法和装置,其包括位于流动空间的内表面平面处的至少一个过滤装置,该过滤装置配有这种穿孔, 其中孔的尺寸基本上小于聚合中使用的催化剂的最小颗粒尺寸。 过滤装置的穿孔尺寸优选为0.1-10μm,优选为0.2-1μm。

    METHOD FOR PREVENTING FOULING AND SHEETING IN GAS PHASE REACTORS
    3.
    发明申请
    METHOD FOR PREVENTING FOULING AND SHEETING IN GAS PHASE REACTORS 审中-公开
    用于防止气相反应器中的排放和沉积的方法

    公开(公告)号:WO1996032420A1

    公开(公告)日:1996-10-17

    申请号:PCT/FI1996000189

    申请日:1996-04-10

    Abstract: A method for preventing sheeting problems in a gas phase reactor in such multi-phase polymerization process, which comprises at least one loop reactor followed by a gas phase reactor, where the polymerization is continued in the presence of added monomers, and in which process a fouling preventive agent is used to prevent fouling or sheeting in the reactors. According to the invention 30-70 % of the end product is polymerized in the loop reactor, where the whole amount of the fouling preventive agent is added, the amount of the fouling preventive agent being higher than necessary to prevent the fouling in the loop reactor.

    Abstract translation: 一种用于在这种多相聚合方法中防止气相反应器中的片材问题的方法,该方法包括至少一个循环反应器,随后是气相反应器,其中聚合在添加的单体存在下继续进行,其中a 防污剂用于防止反应器中的结垢或片层。 根据本发明,30-70%的最终产物在循环反应器中聚合,其中加入了全部量的防污剂,防污剂的量高于防止环管反应器中结垢所需的量 。

    EXTRUSION COATING POLYETHYLENE COMPOSITION
    5.
    发明申请
    EXTRUSION COATING POLYETHYLENE COMPOSITION 审中-公开
    挤出涂料聚乙烯组合物

    公开(公告)号:WO2009141273A1

    公开(公告)日:2009-11-26

    申请号:PCT/EP2009/055897

    申请日:2009-05-15

    CPC classification number: C08L23/06 C08L2205/02 C09D123/06 C08L2666/06

    Abstract: Extrusion coating polyethylene composition A), comprising a) 70 wt% - 98wt% of a high pressure low density polyethylene homopolymer, produced in a tubular reactor, having a melt index of 2 to 8 g/10 min according to ISO 1133 (190°C, 2.16 kg) and a density of 915 to 935 kg/m 3 according to ISO 1183 and b) 2 wt% - 30 wt of a long chain branched, low-density polyethylene, having a melt index MFR of 2.5 to 10.0 g/10 min according to ISO 1133 (190°C, 2.16 kg), a density of 910 to 935 kg/m 3 according to ISO 1183 and - a dynamic viscosity η 0.05 at a shear rate of 0.05 rad/s and a dynamic viscosity η 300 rad/s which satisfy the following relationship: η 300 ≤ 108 Pa*s + 0.0253* η 0.05 and/or - a phase shift δ 0.5 at a frequency of 0.5 rad/s and a phase shift δ 300 at a frequency of 300 rad/s, which satisfy the following relationship: tan δ 300 ≥ 0.45 + 0.164* tan δ 0.05 and its use.

    Abstract translation: 挤出涂覆聚乙烯组合物A),其包含a)70重量%至98重量%的在管式反应器中制备的高压低密度聚乙烯均聚物,根据ISO 1133(190°)具有2至8g / 10min的熔体指数 C,2.16kg),根据ISO 1183的密度为915至935kg / m 3,b)2重量%-30重量%的长链支化低密度聚乙烯,其熔体指数MFR为2.5至10.0g / 根据ISO 1133(190℃,2.16kg)10分钟,根据ISO 1183的密度为910至935kg / m 3,剪切速率为0.05rad / s时的动态粘度≥0.05,动态粘度≥300 满足以下关系的rad / s:在300rad / s的频率下的Δ300= 108Pa * s + 0.0253 *≤0.05和/或 - 在0.5rad / s的频率下的相移d0.5和300rad的频率的相移d300 / s,满足以下关系:tan d300 = 0.45 + 0.164 * tan d 0.05及其用途。

    POLYETHYLENE BLEND COMPONENT AND BLENDS CONTAINING THE SAME
    7.
    发明申请
    POLYETHYLENE BLEND COMPONENT AND BLENDS CONTAINING THE SAME 审中-公开
    聚乙烯共混组分和含有它们的共混物

    公开(公告)号:WO2007045315A1

    公开(公告)日:2007-04-26

    申请号:PCT/EP2006/008977

    申请日:2006-09-14

    Abstract: According to one aspect, the present invention relates to a low-density polyethylene having a melt index MFR 2 of 2.5 to 10.0 g/10 min, a density of 910 to 935 kg/ m3 , and a dynamic viscosity η o.o5 at a shear rate of 0.05 rad/s and a dynamic viscosity η 300 at a shear rate of 300 rad/s which satisfy the following relationship: η 300 ≤ 108 * Pas + 0.0253 * η o.o5 . According to a second aspect, the present invention relates to a low-density polyethylene having a melt index MFR 2 of 2.5 to 10.0 g/10 min, a density of 910 to 935 kg/m 3 , and a phase shift δ 0.5 at a frequency of 0.5 rad/s and a phase shift δ 300 at a frequency of 300 rad/s, which satisfy the following relationship:tan δ 300 ≥ 0.45 + 0.164 * tan δ 0.5 .

    Abstract translation: 根据一个方面,本发明涉及熔体指数MFR 2/2> 2.5至10.0g / 10min,密度为910至935kg / m3的低密度聚乙烯, / SUP>,在0.05rad / s的剪切速率下的剪切速率和300rad / s的剪切速率下的动态粘度η300℃下的动态粘度η0.o5 其满足以下关系:&lt; 300&gt; = 108&lt;&lt; Pas + 0.0253&lt; 根据第二方面,本发明涉及一种熔体指数为MFR 2 / 2min为2.5至10.0g / 10min,密度为910至935kg / m 2的低密度聚乙烯, 并且在300rad / s的频率下以0.5rad / s的频率和相移d <300>的频率的相位偏移d <0.5>和/ 满足以下关系:tan d&lt; 300&gt; = 0.45 + 0.164&lt; tan d&lt; 0.5&gt;

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