PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES
    21.
    发明申请
    PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES 有权
    用于管道的丙烯基聚合物组合物

    公开(公告)号:US20140349051A1

    公开(公告)日:2014-11-27

    申请号:US14362564

    申请日:2012-12-05

    Abstract: A polyolefin composition comprising:A) from 85.0 wt % to 99.5 wt %; A terpolymer containing propylene, ethylene and 1-hexene wherein:(i) the content of 1-hexene derived units ranges from 1.0 wt % to 5.0%;(ii) the content of ethylene derived units is comprised between 0.5 wt % and 10.0 wt %(iii) the melting temperature ranges from 130° C. to 145° C.;B) from 0.5 wt % to 10.0 wt %; of a propylene, ethylene copolymer composition comprising:b1) from 12 wt % to 52 wt %; of a propylene homopolymer or a propylene/ethylene copolymer having a content of ethylene derived units ranging from 0.1 wt % to 4.5 wt %; and having a xylene soluble content measured at 25° C. lower than 10 wt %;b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer having a content of ethylene derived units ranging from 15.0 wt % to wt % to 42.0 wt %;wherein the resulting polyolefin composition has an melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

    Abstract translation: 一种聚烯烃组合物,其包含:A)85.0重量%至99.5重量%; 含有丙烯,乙烯和1-己烯的三元共聚物,其中:(i)1-己烯衍生单元的含量为1.0wt%至5.0%; (ii)乙烯衍生单元的含量为0.5重量%至10.0重量%之间(iii)熔融温度范围为130℃至145℃; B)为0.5重量%〜10.0重量% 的丙烯,乙烯共聚物组合物,其包含:b1)12重量%至52重量%; 的丙烯均聚物或丙烯/乙烯共聚物,其乙烯衍生单元的含量范围为0.1重量%至4.5重量%; 并且在25℃下测得低于10重量%的二甲苯可溶物含量; b2)为48重量%至88重量%的乙烯衍生单元含量为15.0重量%至42重量%的丙烯乙烯共聚物; 其中所得聚烯烃组合物的熔体流动速率(230℃,5kg,ISO 1133)为0.2g / 10min至4.0g / 10min; 总和A + B为100,总和b1 + b2为100。

    PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS
    22.
    发明申请
    PROCESS FOR THE PREPARATION OF HETEROPHASIC PROPYLENE POLYMER COMPOSITIONS 有权
    制备异构丙烯聚合物组合物的方法

    公开(公告)号:US20140316069A1

    公开(公告)日:2014-10-23

    申请号:US14358753

    申请日:2012-11-07

    Abstract: A process for the preparation of propylene polymer compositions comprising from 50 to 90% by weight of a propylene (co)polymer fraction insoluble in xylene at 25° C., and from 10 to 50% by weight of an ethylene copolymer fraction soluble in xylene at 25° C., said process comprising: (i) a first step of polymerizing propylene in the optional presence of ethylene and/or C4-C10 alpha olefins, to produce a propylene (co)polymer being for at least 85% by weight insoluble in xylene at 25° C.; and (ii) a successive step, carried out in gas-phase, in the presence of the product coming from step (i), of copolymerizing a mixture of ethylene with one or more α-olefins CH2═CHR in which R is a hydrocarbon radical having 1-10 carbon atoms, to produce an ethylene copolymer; the process being carried out in the presence of a catalyst system comprising: the product obtained by contacting: (a) a solid catalyst component comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two internal electron donor compounds one of which being present in an amount from 35 to 90% by mol with respect to the total amount of donors and being selected from succinates and the other being selected from 1,3-diethers, the total amount of internal electron donor compounds being lower than 14.0% by weight with respect to the total weight of the solid catalyst component; with (b) an aluminum hydrocarbyl compound, and optionally with (c) an external electron donor compound.

    Abstract translation: 一种制备丙烯聚合物组合物的方法,其包含50至90重量%的在25℃下不溶于二甲苯的丙烯(共)聚合物部分和10至50重量%的可溶于二甲苯的乙烯共聚物部分 所述方法包括:(i)在乙烯和/或C 4 -C 10α-烯烃的任选存在下聚合丙烯以产生丙烯(共)聚合物至少85重量%的第一步骤 在25℃不溶于二甲苯。 和(ii)在来自步骤(i)的产物存在下,在气相中进行共聚合乙烯与一种或多种α-烯烃CH 2 = CHR的混合物的连续步骤,其中R是烃 具有1-10个碳原子的基团,以制备乙烯共聚物; 该方法在催化剂体系存在下进行,该催化剂体系包括:通过使(a)包含卤化镁的固体催化剂组分,至少具有Ti-卤素键的钛化合物和至少两个内部电子给体 其中一种相对于供体总量为35至90摩尔%,其中一种选自琥珀酸酯,另一种选自1,3-二醚,内给电子体化合物的总量为 相对于固体催化剂组分的总重量低于14.0重量% 与(b)铝烃基化合物,和任选与(c)外电子给体化合物。

    Polyolefin composition for fibers
    25.
    发明授权

    公开(公告)号:US10767036B2

    公开(公告)日:2020-09-08

    申请号:US16629104

    申请日:2018-06-20

    Abstract: A polyolefinic fiber made from or containing from 2 wt % to 20 wt % relative to the total weight of the fiber of a polyolefin composition made from or containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing from 0.1% to 20% by weight of alpha-olefin units and containing 25% by weight or less of a fraction soluble in xylene at 25° C.; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25% to 75% by weight of ethylene units and containing from 40% to 95% by weight of a fraction soluble in xylene at 25° C.; the amounts of (A), (B) and (C) being referred to the total weight of (A)+(B)+(C), the sum of the amount of (A)+(B)+(C) being 100.

    Film for stretch hood applications
    26.
    发明授权

    公开(公告)号:US10661540B2

    公开(公告)日:2020-05-26

    申请号:US16301799

    申请日:2017-05-09

    Abstract: The disclosure provides a multilayer blown film for stretch hood made from or containing a layer made from or containing a first polyolefin composition made from or containing from 20 wt % to 80 wt %, based upon the total weight of the first polyolefin composition, of Component A) and from 20 wt % to 80 wt %, based upon the total weight of the first polyolefin composition, of Component B); wherein Component A) is an ethylene copolymer and Component B) is a polyolefin composition made from or containing: (i) 5-35% by weight, based upon the total weight of Component B, of a propylene homopolymer or a propylene ethylene copolymer (ii) 20-50% by weight, based upon the total weight of Component B, of a copolymer of ethylene and a C3-C8 alpha-olefin; and (iii) 30-60% by weight, based upon the total weight of Component B, of a copolymer of ethylene and propylene.

    POLYOLEFIN COMPOSITIONS
    30.
    发明申请
    POLYOLEFIN COMPOSITIONS 有权
    聚烯烃组合物

    公开(公告)号:US20140336334A1

    公开(公告)日:2014-11-13

    申请号:US14352868

    申请日:2012-10-19

    CPC classification number: C08L23/12 C08L23/0815 C08L2666/06

    Abstract: A polyolefin compositions comprising: A) From 77 wt % to 90 wt %, of a propylene homopolymer having the fraction soluble in xylene at 25° C. lower than 2 wt %; B) from 10 wt % to 23 wt % of a copolymer of ethylene with one C4-C10 alpha-olefin containing from 20 wt % to 30 wt %, of said C4-C10 alpha-olefin derived units; said composition having the value of melt flow rate (MFR) at 230° C., 2.16 kg of from 0.5 to 4.5 g/10 min; the total content of ethylene of from 10 wt % to 18 wt %; the value of the intrinsic viscosity of the total fraction soluble in Xylene at 25° C. (AMXSIVtot) is less than 1.5 dl/g.

    Abstract translation: 一种聚烯烃组合物,其包含:A)77重量%至90重量%的在25℃下可溶于二甲苯的级分低于2重量%的丙烯均聚物; B)10重量%至23重量%的乙烯与一种含有20重量%至30重量%的所述C 4 -C 10α-烯烃衍生单元的C 4 -C 10α-烯烃的共聚物; 所述组合物在230℃下的熔体流动速率(MFR)值为2.16kg,为0.5-4.5g / 10min; 乙烯的总含量为10重量%至18重量%; 在25℃下可溶于二甲苯的总馏分的特性粘度(AMXSIVtot)的值小于1.5dl / g。

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