POLYOLEFINIC COMPOSITIONS
    95.
    发明授权
    POLYOLEFINIC COMPOSITIONS 有权
    聚烯烃组合物

    公开(公告)号:EP2459643B1

    公开(公告)日:2016-12-07

    申请号:EP10735260.1

    申请日:2010-07-20

    Abstract: A polymer composition comprising (per cent by weight): a) 70-84% of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar %; b) 8-15% of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 25 to 50 wt % and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 8-15% of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 55 to 90 g/10 min, and the amount of hexane extractables lower than 3.5 wt %.

    PROCESS FOR THE PREPARATION OF POROUS PROPYLENE POLYMERS
    96.
    发明公开
    PROCESS FOR THE PREPARATION OF POROUS PROPYLENE POLYMERS 有权
    VERFAHREN ZUR HERSTELLEN VONPORÖSENPROPYLENPOLYMEREN

    公开(公告)号:EP3060588A1

    公开(公告)日:2016-08-31

    申请号:EP14786901.0

    申请日:2014-10-21

    Abstract: Process for the preparation of a porous propylene carried out in the presence of a catalyst system comprising (a) a Ziegler-Natta catalyst containing at least two electron donor compounds one of which being present in an amount from 50 to 90% by mol with respect to the total amount of donors and selected from succinates and the other being selected from 1,3 diethers, (b) an aluminum alkyl and comprising the following steps: i) contacting the catalyst components (a) and (b) for a period of time ranging from 1 to 60 minutes, at a temperature ranging from 35 to 55°C; optionally, ii) pre-polymerizing with one or more olefins of formula CH2=CHR, where R is H or a C1-C10 hydrocarbon group, up to forming amounts of polymer from about 0.1 up to about 1000 g per gram of solid catalyst component (a); and iii) polymerizing propylene in the optional presence of minor amounts of ethylene and/or C4-C10 alpha olefins producing said porous propylene (co)polymer.

    Abstract translation: 在催化剂体系存在下进行的多孔丙烯的制备方法,包括(a)含有至少两种电子给体化合物的齐格勒 - 纳塔催化剂,其中一种以50-90% 相对于供体的总量,选自琥珀酸盐,另一种选自1,3-二醚,(b)烷基铝,包括以下步骤:i)使催化剂组分(a)和(b)接触一段时间 时间为1至60分钟,温度范围为35至55℃; 任选地,ii)使用一种或多种式CH 2 = CHR的烯烃进行预聚合,其中R是H或C1-C10烃基,直到每克固体催化剂组分约0.1至约1000g的聚合物的形成量 (一个); 和iii)在少量乙烯和/或C 4 -C 10α-烯烃的任选存在下聚合丙烯,生产所述多孔丙烯(共)聚合物。

    PROCESS FOR THE PREPARATION OF HIGH PURITY PROPYLENE POLYMERS
    99.
    发明公开
    PROCESS FOR THE PREPARATION OF HIGH PURITY PROPYLENE POLYMERS 有权
    VERFAHRENFÜRDIE HERSTELLUNG VON HOCHREINEN PROPYLENPOLYMEREN

    公开(公告)号:EP2758440A1

    公开(公告)日:2014-07-30

    申请号:EP12759441.4

    申请日:2012-09-17

    Abstract: A process for the preparation of high purity propylene polymers carried out in the presence of a catalyst comprising the product obtained by contacting: (a) a solid catalyst component comprising Mg, Ti and at least a first internal electron donor compound (HD) selected among the succinates and a second internal electron donor compound (2ID) selected among the 1,3-diethers, wherein the molar ratio of first internal donor over second internal donor 1ID:2ID is comprised between 4:6 and 9:1, with (b) an organo-aluminium compound, and optionally with (c) an external electron donor compound, said process being carried out at a temperature equal or higher than 78° C. and by employing a molar ratio of organo-aluminum compound over solid catalyst component (b):(a) of lower than 5.

    Abstract translation: 一种制备高纯度丙烯聚合物的方法,所述丙烯聚合物在催化剂存在下进行,所述催化剂包括通过使(a)包含Mg,Ti和至少第一内部电子给体化合物(HD)的固体催化剂组分与 所述琥珀酸盐和选自所述1,3-二醚中的第二内给电子体化合物(2ID),其中所述第一内给体相对于所述第二内供体1ID:2ID的摩尔比为4:6至9:1,与(b )有机铝化合物,并且任选地与(c)外电子给体化合物反应,所述方法在等于或高于78℃的温度下进行,并且通过使用有机铝化合物与固体催化剂组分的摩尔比 (b):( a)低于5。

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