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    Process for the preparation of porous polymers and polymers obtainable thereof
    6.
    发明授权
    Process for the preparation of porous polymers and polymers obtainable thereof 失效
    制备可获得的多孔聚合物和聚合物的方法

    公开(公告)号：US07183332B2

    公开(公告)日：2007-02-27

    申请号：US10450603

    申请日：2001-12-21

    申请人： Angelo Ferraro ,  Giovanni Baruzzi ,  Constantine A. Stewart ,  Ofelia Fusco

    发明人： Angelo Ferraro ,  Giovanni Baruzzi ,  Constantine A. Stewart ,  Ofelia Fusco

    IPC分类号： C08F10/06 ,  C08F4/02 ,  C08L23/10

    CPC分类号： C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/027 ,  C08F2/001 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

    摘要： A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T1, one or more olefins of the formula (I) CH2═CHR1, R1 being hydrogen, a C1–C20-alkyl or a C6–C12-aryl group, with a catalyst obtained by reacting a solid catalyst component in the form of spheroidal particles comprising a compound of Ti or V not containing metal-π bonds and a Mg halide, optionally containing one or more electron donor compounds, with an aluminum-alkyl (Al-alkyl) compound, then raising the temperature up to the polymerization temperature, said process being characterized in that: a) if the temperature T1 is lower than 40° C., the temperature is raised up to the polymerization temperature is such a way that, for a time of at least one minute after the introduction temperature in such a way that, for a time of at least one minute after the introduction of the catalyst system into the reactor, the temperature of the reaction T2 fulfills the following condition of formula (II) wherein m is the time expressed in minutes employed for reaching the temperature T2; or b) if temperature T1 is 40° C. or higher, the reactor is maintained for a time of at least one minute at a temperature of at least 40° C.

    摘要翻译： 一种制备多孔烯烃聚合物的方法，包括在聚合反应器中，在温度T 1下接触一种或多种式（I）CH 2 -CHR的烯烃 R 1是氢，C 1 -C 20 - 烷基或C 6 - 与通过使包含不含金属-Ip键的Ti或V的化合物的球形颗粒形式的固体催化剂组分与Mg的反应获得的催化剂与Mg 卤化物，任选地含有一个或多个电子给体化合物与烷基铝（Al-烷基）化合物，然后将温度升高到聚合温度，所述方法的特征在于：a）如果温度T 1 低于40℃，温度升高到聚合温度是这样一种方式，使得在引入温度之后至少1分钟的时间，使得在 在介绍后至少一分钟 催化剂体系进入反应器中，反应温度T 2满足以下条件（II），其中m是达到温度T 2的分钟所用的时间 ; 或b）如果温度T≥0.4℃或更高，则反应器在至少40℃的温度下保持至少1分钟的时间。

    Catalyst for the polymerization of olefins
    10.
    发明授权
    Catalyst for the polymerization of olefins 失效
    用于烯烃聚合的催化剂

    公开(公告)号：US06716940B1

    公开(公告)日：2004-04-06

    申请号：US10070120

    申请日：2002-02-28

    申请人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    发明人： Tiziano Dall'Occo ,  Giovanni Baruzzi ,  Diego Brita ,  Mario Sacchetti

    IPC分类号： C08F442

    CPC分类号： C08F10/00 ,  C08F4/6426

    摘要： Catalyst system for the polymerization of olefins CH2═CHR, wherein R is hydrogen or a hydrocarbon radical having 1-12 carbon atoms, comprising the product of the reaction between (a) a solid catalyst component comprising Mg, Ti, and halogen, (b) dimethylaluminium chloride (DMAC) and (c) an alkylaluinium compound, in which the molar ratio between (b) and (c) is lower than 10. This kind of catalyst system is particularly suitable for the preparation of copolymers of ethylene with &agr;-olefins due to its high capacity for incorporating the comonomer while at the same time maintaining high yields.

    摘要翻译： 用于烯烃CH 2 = CHR（其中R是氢或具有1-12个碳原子的烃基）聚合的催化剂体系包括（a）包含Mg，Ti和卤素的固体催化剂组分（b ）二甲基氯化铝（DMAC）和（c）（b）和（c）之间的摩尔比低于10的烷基铝化合物。这种催化剂体系特别适用于制备乙烯与α- 烯烃，因为它具有高的并入共聚单体的能力，同时保持高产率。