PROCESS FOR PRODUCING PROPYLENE POLYMER COMPOSITION, AND PROPYLENE POLYMER COMPOSITION
    1.
    发明公开
    PROCESS FOR PRODUCING PROPYLENE POLYMER COMPOSITION, AND PROPYLENE POLYMER COMPOSITION 失效
    VERFAHREN ZUR HERSTELLUNG EINER PROPYLEN-POLYMERZUSAMMENSETZUNG UND PROPYLEN-POLYMERZUSAMMENSETZUNG

    公开(公告)号:EP0704462A4

    公开(公告)日:1996-08-07

    申请号:EP95914558

    申请日:1995-04-11

    Abstract: A process for producing a propylene polymer composition by conducting a multi-stage polymerization comprising the step (a) of producing a propylene (co)polymer (a) and the step (b) of producing an ethylene copolymer (b) in an arbitrary order in the presence of a transition metal compound (A) containing a ligand having a cyclopentadienyl skeleton and a compound (B) capable of activating the compound (A) and also in the presence, in the step (b), of the polymer produced in the preceding step (a), in which process the obtained polymer composition contains 20-90 wt. % of the (co)polymer (a) and 80-10 wt. % of the copolymer (b) and has a melt flow rate of 0.01-500 g/10 min as measured at a temperature of 230 °C under a load of 2.16 kg. This process can provide a propylene polymer composition having an excellent balance among rigidity, heat resistance and impact resistance.

    Abstract translation: 一种通过进行多阶段聚合生产丙烯聚合物组合物的方法,该方法包括以任意顺序生产丙烯(共)聚合物(a)和生产乙烯共聚物(b)的步骤(b)的步骤 在含有具有环戊二烯基骨架的配体和能够活化化合物(A)的化合物(B)的过渡金属化合物(A)的存在下,以及在步骤(b)中存在的 在前面的步骤(a)中,在该方法中,所得聚合物组合物含有20-90wt。 (共)聚合物(a)和80-10wt。 共聚物(b)的%,并且在230℃的温度和2.16kg的负荷下测得的熔体流动速率为0.01-500g / 10分钟。 该方法可以提供刚性,耐热性和耐冲击性之间具有优异平衡的丙烯聚合物组合物。

    SOLID CATALYTIC COMPONENT FOR OLEFIN POLYMERIZATION AND OLEFIN POLYMERIZATION CATALYST AND THE USE THEREOF

    公开(公告)号:CZ283582B6

    公开(公告)日:1998-05-13

    申请号:CS694290

    申请日:1990-12-29

    Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of alpha -olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst. According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.

    6.
    发明专利
    未知

    公开(公告)号:DE69030489T2

    公开(公告)日:1997-09-04

    申请号:DE69030489

    申请日:1990-12-28

    Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of alpha -olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst. According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.

    7.
    发明专利
    未知

    公开(公告)号:DE69030489D1

    公开(公告)日:1997-05-22

    申请号:DE69030489

    申请日:1990-12-28

    Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of alpha -olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst. According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.

    8.
    发明专利
    未知

    公开(公告)号:AT151782T

    公开(公告)日:1997-05-15

    申请号:AT90125706

    申请日:1990-12-28

    Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of alpha -olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst. According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.

    9.
    发明专利
    未知

    公开(公告)号:ES2098318T3

    公开(公告)日:1997-05-01

    申请号:ES91301167

    申请日:1991-02-13

    Abstract: A method for the preparation of an ethylene polymer composition having a density of 0.87-0.93 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, which comprises carrying out a multi-stage process comprising a polymerization step (c): wherein ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIÜ, which comprises a transition metal compound ÄAÜ containing a ligand having a cycloalkadienyl skeleton and an organoaluminum oxy-compound ÄBÜ, to form an ethylene copolymer ÄIIIÜ having a density of lower than 0.91 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, and a polymerization step (d): wherein ethylene is homopolymerized or ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIIÜ, which comprises a titanium catalyst component ÄCÜ containing titanium, magnesium and halogen as its essential ingredients, an organoaluminum compound ÄDÜ and/or an organoaluminum oxy-compound ÄEÜ to form an ethylene copolymer ÄIVÜ having a density greater than that of the ethylene copolymer ÄIIIÜ and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, wherein the polymerization steps (c) and (d) are carried out such that step (c) is carried out first and step (d) is carried out in the presence of the ethylene copolymer ÄIIIÜ or step (d) is carried out first and step (c) is carried out in the presence of the ethylene polymer ÄIVÜ so that the ethylene polymer ÄIVÜ amounts to 10-1000 parts by weight based on 100 parts by weight of the ethylene copolymer ÄIIIÜ.

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