1-butene copolymers and process for preparing them
    5.
    发明授权
    1-butene copolymers and process for preparing them 有权
    1-丁烯共聚物及其制备方法

    公开(公告)号:US07534848B2

    公开(公告)日:2009-05-19

    申请号:US10536857

    申请日:2003-11-14

    摘要: A process comprising contacting 1-butene and one or more alpha-olefins under polymerization conditions in the presence of a catalyst system obtainable by contacting: (A) a metallocene compound of formula (I) wherein: M is an atom of a transition metal; p is an integer from 0 to 3; X, same or different, are hydrogen atoms, halogen atoms, or an hydrocarbon group; L is a divalent bridging group; R1 and R3 are hydrocarbon groups; R2 and R4 are hydrogen atoms or hydrocarbon groups; T1 and T2, equal to or different from each other are a moiety of formula (II), (III) or (IV): wherein: R5, R6, R7, R8 and R9, equal to or different from each other, are hydrogen or hydrocarbon groups; and (B) an alumoxane or a compound able to form an alkylmetallocene cation.

    摘要翻译: 一种方法,包括在聚合条件下,在催化剂体系存在下使1-丁烯和一种或多种α-烯烃接触,所述催化剂体系可通过使下列物质接触而获得:(A)式(I)的茂金属化合物,其中:M是过渡金属的原子; p是0至3的整数; X相同或不同,为氢原子,卤素原子或烃基; L是二价桥基; R1和R3是烃基; R2和R4是氢原子或烃基; T 1和T 2彼此相同或不同的是式(II),(III)或(IV)的部分:其中:R 5,R 6,R 7,R 8和R 9彼此相同或不同,为氢 或烃基; 和(B)铝氧烷或能够形成烷基茂金属阳离子的化合物。

    Soft polyolefin compositions with improved flow
    7.
    发明授权
    Soft polyolefin compositions with improved flow 有权
    具有改善流动性的软聚烯烃组合物

    公开(公告)号:US07294674B2

    公开(公告)日:2007-11-13

    申请号:US10507250

    申请日:2003-03-05

    IPC分类号: C08L23/04 C08L23/10 C08L23/16

    摘要: A polyolefin composition suitable for preparing films and sheets, comprising: (A) from 15 to 40% by weight of a crystalline copolymer of propylene with at least one alpha-olefin of formula H2C═CHR1, where R1 is H or a C2-8 linear or branched alkyl, containing at least 90% by weight of propylene, having solubility in xylene at room temperature lower than 15% by weight; (B) from 60 to 85% by weight of an elastomeric fraction comprising: (1) a copolymer of propylene with ethylene, optionally containing 0.5 to 5% by weight of a diene, containing from 20 to 35% by weight ethylene, and having solubility in xylene at room temperature greater than 45% by weight, the intrinsic viscosity of the xylene soluble fraction ranging from 1.0 to 3.0 dl/g; and (2) a copolymer of ethylene with at least one alpha-olefin of formula H2C═CHR2, where R2 is a C2-8 linear or branched alkyl, optionally containing 0.5 to 5% by weight of a diene, containing 15% to 40% by weight alpha-olefin, and having solubility in xylene at room temperature greater than 35% by weight, the intrinsic viscosity of the xylene soluble fraction ranging from 1.0 to 3.0 dl/g; the (1)/(2) weight ratio ranging from 1:5 to 5:1. The polyolefin composition of the invention, preferably prepared by sequential polymerization in at least three stages, has a flexural modulus lower than 130 MPa, Shore D hardness lower than 40, and MFR≧1.5 g/10 min.

    摘要翻译: 一种适于制备薄膜和片材的聚烯烃组合物,其包含:(A)15至40重量%的丙烯与至少一种式H 2 C-CHR的α-烯烃的结晶共聚物, 其中R 1是H或含有至少90重量%的丙烯的C 2〜2-8直链或支链烷基,其具有溶解度 在二甲苯中室温低于15重量%; (B)60至85重量%的弹性体级分,其包含:(1)丙烯与乙烯的共聚物,任选含有0.5至5重量%的二烯,其含有20至35重量%的乙烯,并且具有 在室温下在二甲苯中的溶解度大于45重量%,二甲苯可溶部分的特性粘度为1.0-3.0dl / g; 和(2)乙烯与至少一种式H 2 C-CHR 2的α-烯烃的共聚物,其中R 2是 C 2-8直链或支链烷基,任选地含有0.5至5重量%的二烯,含有15重量%至40重量%的α-烯烃,并且在室温下在二甲苯中的溶解度大于 35重量%,二甲苯可溶成分的特性粘度为1.0〜3.0dl / g; (1)/(2)重量比为1:5至5:1。 本发明的聚烯烃组合物,优选通过至少三个阶段的顺序聚合制备,其挠曲模量低于130MPa,肖氏D硬度低于40,MFR> = 1.5g / 10min。

    Polyolefin masterbatch for preparing impact-resistant polyolefin articles
    8.
    发明授权
    Polyolefin masterbatch for preparing impact-resistant polyolefin articles 有权
    用于制备耐冲击聚烯烃制品的聚烯烃母料

    公开(公告)号:US07288598B2

    公开(公告)日:2007-10-30

    申请号:US10506950

    申请日:2003-03-06

    IPC分类号: C08F10/02

    摘要: A masterbatch composition comprising (1) 10-50 wt % of a crystalline propylene homopolymer and (2) 50-90 wt % of a blend consisting of (a) a copolymer of ethylene and one or more C4-CIO a-olefin(s), containing 10-40 of C4-CIO a-olefin(s), and (b) an amorphous copolymer of propylene and ethylene. Copolymer (b) has an ethylene content from 20-70 wt %, and an intrinsic viscosity value of the xylene-soluble moiety of from 2.2 to 3.5 d/Lg, this value being equal to 0.8 to 1.2 times the intrinsic viscosity value of the xylene-soluble moiety of copolymer (a). The weight ratio of copolymers (a)/(b) is from 3/1 to 1/3. Polyolefin compositions comprising the said masterbatch composition are suitable for the manufacture of automotive parts.

    摘要翻译: 一种母料组合物,其包含(1)10-50重量%的结晶丙烯均聚物和(2)50-90重量%的共混物,由(a)乙烯和一种或多种C 4 -C 10α-烯烃的共聚物 ),含有10-40个C 4 -C 10α-烯烃,和(b)丙烯和乙烯的无定形共聚物。 共聚物(b)的乙烯含量为20〜70重量%,二甲苯可溶部分的特性粘度值为2.2〜3.5d / Lg,该值等于其特性粘度值的0.8〜1.2倍 共聚物(a)的二甲苯可溶部分。 共聚物(a)/(b)的重量比为3/1〜1/3。 包含所述母料组合物的聚烯烃组合物适于制造汽车部件。

    Propylene polymer compositions having improved impact strength and excellent optical properties
    10.
    发明授权
    Propylene polymer compositions having improved impact strength and excellent optical properties 有权
    丙烯聚合物组合物具有改善的冲击强度和优异的光学性能

    公开(公告)号:US06599986B2

    公开(公告)日:2003-07-29

    申请号:US10031584

    申请日:2002-01-18

    IPC分类号: C08L2300

    摘要: Propylene polymer compositions comprising (percent by weight): A) from 70 to 90% of a random copolymer of propylene with ethylene, containing from 1 to 6% of ethylene, having a content of fraction insoluble in xylene at room temperature (about 23° C.) of not less than 93%; B) from 10% to 30% of a copolymer of propylene with ethylene, containing from 8 to 18% of ethylene; wherein the ratio (B)/C2B of the percent by weight of (B), with respect to the total weight of (A) and (B), to the percent by weight of ethylene in (B), with respect to the total weight of (B), represented in the above formula by C2B, is 2.5 or lower.

    摘要翻译: 包含(重量%)的丙烯聚合物组合物:A)70-90%丙烯与乙烯的无规共聚物,其含有1-6%的乙烯,其含量在室温下不溶于二甲苯(约23℃) C.)不低于93%; B)10%至30%的丙烯与乙烯的共聚物,含有8至18%的乙烯; 其中(B)的重量百分比(B)相对于(A)和(B)的总重量相对于(B)中乙烯的重量百分比的比例(B)/ C2B,相对于 通过C2B表示的上述式中的(B)的重量为2.5以下。