Metallocenes with ferrocenyl-substituted bridges used in olefin polymerization
    4.
    发明授权
    Metallocenes with ferrocenyl-substituted bridges used in olefin polymerization 失效
    用于烯烃聚合的二茂铁基取代的桥接金属茂

    公开(公告)号:US06239299B1

    公开(公告)日:2001-05-29

    申请号:US09509214

    申请日:2000-03-24

    IPC分类号: C07F1700

    摘要: The invention relates to metallocenes of formula (I), in which M is a metal from the Ti, Zr, Hf, V, Nb, Ta group or an element from the lanthanide group, X1 and X2 stand for an alkyl-, aryl-, alkenyl-, arylalkyl-, alkylaryl- or arylalkenyl group and L1 and L2 are hydrocarbon capable of forming a sandwich structure with M. R stands for C, Si, Ge or Sn, A and B are ferrocenyl-substituted radicals, or B is optionally a radical X1 of X2. The metallocenes are preferably used as catalysts in the polymerization of olefins.

    摘要翻译: 本发明涉及式(I)的金属茂,其中M是来自Ti,Zr,Hf,V,Nb,Ta基团的金属或来自镧系元素的元素,X 1和X 2表示烷基, ,烯基 - ,芳基烷基 - ,烷基芳基 - 或芳基烯基,L1和L2是能够形成夹心结构的烃,其中R表示C,Si,Ge或Sn,A和B是二茂铁基取代的基团,或B是 可选地,X 1的基团X 1。 金属茂优选用作烯烃聚合中的催化剂。

    Impact-modified polypropylene
    8.
    发明授权
    Impact-modified polypropylene 有权
    冲击改性聚丙烯

    公开(公告)号:US09040633B2

    公开(公告)日:2015-05-26

    申请号:US12734368

    申请日:2008-10-27

    摘要: The present invention relates to a polymer composition, comprising: (i) a polypropylene matrix; (ii) a first elastomeric phase dispersed within the matrix and having a glass transition temperature Tg1, measured with dynamical mechanical thermal analysis according to ISO 6721-2, wherein the first elastomeric phase comprises an ethylene copolymer having comonomer units derived from C3 to C8 olefins; (iii) a second elastomeric phase dispersed within the matrix, wherein the second elastomeric phase is crosslinked and has a glass transition temperature Tg2, measured with dynamical mechanical thermal analysis according to ISO 6721-2, within the range of −70° C. to −90° C., wherein the difference between Tg1 and Tg2 is at least 15° C. and Tg1 is higher than Tg2.

    摘要翻译: 本发明涉及聚合物组合物,其包含:(i)聚丙烯基质; (ii)分散在基体内并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg1的第一弹性体相,其中第一弹性体相包含具有衍生自C3至C8烯烃的共聚单体单元的乙烯共聚物 ; (iii)分散在基体内的第二弹性体相,其中第二弹性体相交联并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg2,其在-70℃至 -90℃,其中Tg1和Tg2之间的差为至少15℃,Tg1高于Tg2。

    IMPACT-MODIFIED POLYPROPYLENE
    9.
    发明申请
    IMPACT-MODIFIED POLYPROPYLENE 有权
    IMPACT改性聚丙烯

    公开(公告)号:US20100256304A1

    公开(公告)日:2010-10-07

    申请号:US12734368

    申请日:2008-10-27

    IPC分类号: C08L23/12 C08L9/00

    摘要: The present invention relates to a polymer composition, comprising: (i) a polypropylene matrix; (ii) a first elastomeric phase dispersed within the matrix and having a glass transition temperature Tg1, measured with dynamical mechanical thermal analysis according to ISO 6721-2, wherein the first elastomeric phase comprises an ethylene copolymer having comonomer units derived from C3 to C8 olefins; (iii) a second elastomeric phase dispersed within the matrix, wherein the second elastomeric phase is crosslinked and has a glass transition temperature Tg2, measured with dynamical mechanical thermal analysis according to ISO 6721-2, within the range of −70° C. to −90° C., wherein the difference between Tg1 and Tg2 is at least 15° C. and Tg1 is higher than Tg2.

    摘要翻译: 本发明涉及聚合物组合物,其包含:(i)聚丙烯基质; (ii)分散在基体内并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg1的第一弹性体相,其中第一弹性体相包含具有衍生自C3至C8烯烃的共聚单体单元的乙烯共聚物 ; (iii)分散在基体内的第二弹性体相,其中第二弹性体相交联并且具有根据ISO 6721-2的动态机械热分析测量的玻璃化转变温度Tg2,其在-70℃至 -90℃,其中Tg1和Tg2之间的差为至少15℃,Tg1高于Tg2。

    Process for preparing catalyst supports and supported polyolefin catalysts and also their use for the preparation of polyolefins
    10.
    发明授权
    Process for preparing catalyst supports and supported polyolefin catalysts and also their use for the preparation of polyolefins 失效
    制备催化剂载体和负载型聚烯烃催化剂的方法及其在制备聚烯烃中的用途

    公开(公告)号:US06225252B1

    公开(公告)日:2001-05-01

    申请号:US09246139

    申请日:1999-02-08

    IPC分类号: B01J3100

    摘要: A process for preparing a catalyst support in which a hydrophilic inorganic oxide of an element of main groups 2, 13 or 14 or transition group 4 of the Periodic Table or a mixture or mixed oxide thereof is dried at from 110 to 800° C., subsequently reacted, if desired, with alumioxanes or aluminum alkyls and subsequently reacted simultaneously with aluminoxanes and bisphenol A as a polyfunctional organic crosslinker. In a further stage, the catalyst support can be brought into contact with a polyolefin catalyst, giving a supported polyolefin catalyst which is used, in particular, for the polymerization of olefins.

    摘要翻译: 制备催化剂载体的方法,其中将元素周期表中的主要基团2,13或14或过渡基团4的元素的亲水性无机氧化物或其混合物或混合氧化物在110至800℃下干燥, 随后如果需要与铝氧烷或烷基铝反应,随后与铝氧烷和双酚A作为多官能有机交联剂同时反应。 在另一阶段,催化剂载体可以与聚烯烃催化剂接触,得到负载型聚烯烃催化剂,特别是用于烯烃聚合。