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    PROCESS FOR PRODUCING HETEROPHASIC COPOLYMERS OF PROPYLENE
    15.
    发明申请
    PROCESS FOR PRODUCING HETEROPHASIC COPOLYMERS OF PROPYLENE 审中-公开

    公开(公告)号：US20190315953A9

    公开(公告)日：2019-10-17

    申请号：US15552466

    申请日：2016-02-18

    Applicant: BOREALIS AG

    Inventor： Pauli LESKINEN ,  Johanna LILJA ,  Jingbo WANG ,  Markus GAHLEITNER

    IPC: C08L23/14 ,  C08F10/06 ,  F16L9/12

    Abstract: The present invention provides a process for producing a heterophasic copolymer composition. The polymerisation is conducted in the presence of an olefin polymerisation catalyst comprising a solid catalyst component further comprising titanium, magnesium, halogen and an internal donor, and a cocatalyst, the process comprising the steps of: (1) introducing streams of the solid catalyst component, the cocatalyst, propylene monomer and hydrogen into a first polymerisation reactor; (2) producing a first polymer of propylene in the first polymerisation reactor, the first polymer of propylene having a first melt flow rate MFR 2 of from 0.1 to 2.0 g/10 min; (3) withdrawing a stream comprising the first polymer of propylene from the first polymerisation reactor and passing it to a second polymerisation reactor; (4) introducing a stream of propylene monomer into the second polymerisation reactor; (5) producing a first polymer mixture comprising the first polymer of propylene and a second polymer of propylene in the second polymerisation reactor, the first polymer mixture having a second melt flow rate MFR2 of from 0.05 to 1.0 g/10 min and which second melt flow rate is less than the first melt flow rate; (6) withdrawing a stream comprising the first polymer mixture from the second polymerisation reactor and passing it to a third polymerisation reactor; (7) introducing streams of propylene monomer and the comonomer into the third polymerisation reactor; (8) producing the heterophasic copolymer composition comprising the first polymer mixture and a third copolymer of propylene in the third polymerisation reactor, the heterophasic copolymer composition having a third melt flow rate MFR2 of from 0.05 to 1.0 g/10 min, said heterophasic copolymer having a content of comonomer units of from 5 to 25% by mole; wherein the amount of xylene soluble fraction in the heterophasic copolymer determined according to ISO 16152 is from 14 to 35% by weight and intrinsic viscosity measured from the amorphous polymer (AM) of the heterophasic copolymer is from 1.5 to 4.4 dl/g; and (9) recovering the heterophasic copolymer composition from the third polymerisation reactor; characterised in that the internal donor is a compound having the structure according to formula (I); wherein R1 and R2 are the same or different being a linear or branched C1-C12-alkyl group and R is hydrogen or a linear, branched or cyclic C1 to C12-alkyl.

    PROCESS FOR PRODUCING POLYPROPYLENE
    16.
    发明申请
    PROCESS FOR PRODUCING POLYPROPYLENE 审中-公开

    公开(公告)号：US20170362357A1

    公开(公告)日：2017-12-21

    申请号：US15539112

    申请日：2015-12-21

    Applicant: BOREALIS AG

    Inventor： Pauli LESKINEN ,  Johanna LILJA ,  Jingbo WANG ,  Markus GAHLEITNER ,  Thomas HORILL ,  Peter DENIFL ,  Cornelia TRANNINGER

    IPC: C08F110/06 ,  C08F2/00 ,  C08F4/649 ,  C08F4/654 ,  C08F4/646

    Abstract: Propylene is polymerised in the presence of a polymerisation catalyst comprising a solid catalyst component, an organoaluminium compound and an external electron donor, the process comprising the steps of (i) contacting propylene and hydrogen with the polymerisation catalyst in polymerisation conditions in a polymerisation reactor to produce a polymer of propylene; (ii) recovering the polymer of propylene from the polymerisation reactor; wherein the polymer of propylene has MFR of from more than 100 to 10000 g/10 min. The solid catalyst component comprises titanium, magnesium, halogen and an internal electron donor, characterised in that the internal electron donor is a compound according to formula (I) with R1 and R2 being the same or different and being a linear or branched C1-C12-alkyl group, and with R being H or a linear, branched or cyclic C1 to C12-alkyl, whereby it is preferred that R is not H. The external electron donor is a silane compound having the formula Si(OR11)nR104-n, wherein each R10 is independently a linear or branched C1-C4 alkyl, preferably methyl or ethyl; and each R10 is independently a linear or branched alkyl group having from 1 to 24 and optionally containing an atom of group 15 of periodic table of elements or comprises a cyclic group having from 6 to 12 carbon atoms.

    HETEROPHASIC COPOLYMER
    18.
    发明申请
    HETEROPHASIC COPOLYMER 审中-公开
    异构共聚物

    公开(公告)号：US20160152810A1

    公开(公告)日：2016-06-02

    申请号：US14904150

    申请日：2014-07-10

    Applicant: BOREALIS AG

    Inventor： Luigi RESCONI ,  Wilfried TOLTSCH ,  Jingbo WANG ,  Markus GAHLEITNER

    IPC: C08L23/10

    CPC classification number: C08L23/10 ,  C08F4/65912 ,  C08L23/14 ,  C08L23/16 ,  C08L2207/02 ,  C08F10/00 ,  C08F4/65927 ,  C08F210/06 ,  C08F2/001 ,  C08F2500/12 ,  C08F4/6492

    Abstract: A heterophasic propylene ethylene copolymer having an MFR2 of 0.5 to 100 g/10 min and obtained using single site catalysis comprising: (i) at least 40 wt % of a propylene homopolymer or propylene ethylene copolymer matrix having up to 4 wt % comonomer; (ii) at least 10 wt % of an ethylene propylene rubber dispersed in the matrix, said heterophasic propylene ethylene copolymer having a xylene cold soluble content (XS) of 12 to 60%; wherein the ethylene content of the xylene cold soluble fraction of said heterophasic propylene ethylene copolymer is between 18 and 70 wt. %; and wherein the intrinsic viscosity of the XS fraction of said heterophasic propylene ethylene copolymer is greater than the intrinsic viscosity of the matrix fraction of said copolymer.

    Abstract translation: 具有0.5-100g / 10min的MFR2为0.5-100g / 10min的异相丙烯乙烯共聚物，其使用单点催化得到，其包含：（i）至少40wt％的具有至多4wt％共聚单体的丙烯均聚物或丙烯乙烯共聚物基质; （ii）至少10重量％的分散在基质中的乙丙橡胶，所述多相丙烯乙烯共聚物具有12至60％的二甲苯冷可溶物含量（XS）; 其中所述多相丙烯乙烯共聚物的二甲苯冷可溶部分的乙烯含量为18至70重量％。 ％; 并且其中所述多相丙烯乙烯共聚物的XS部分的特性粘度大于所述共聚物的基体部分的特性粘度。

    HETEROPHASIC COPOLYMER OBTAINED BY A PROCESS FOR PRODUCING HETEROPHASIC COPOLYMER
    20.
    发明申请
    HETEROPHASIC COPOLYMER OBTAINED BY A PROCESS FOR PRODUCING HETEROPHASIC COPOLYMER 有权

    公开(公告)号：US20230002607A1

    公开(公告)日：2023-01-05

    申请号：US17898119

    申请日：2022-08-29

    Applicant: BOREALIS AG

    Inventor： Pauli LESKINEN ,  Johanna LILJA ,  Jingbo WANG ,  Markus GAHLEITNER

    IPC: C08L23/14 ,  C08F210/06 ,  C08F10/06 ,  F16L9/12

    Abstract: A heterophasic copolymer composition obtained by a process comprising polymerising in multiple steps and multiple polymerisation reactors propylene monomer and a comonomer selected from ethylene, alpha-olefins having 4 to 10 carbon atoms and their mixtures, in the presence of an olefin polymerisation catalyst comprising a solid catalyst component and a co-catalyst, wherein the solid catalyst component comprises titanium, magnesium, halogen and an internal donor of the formula (I): wherein R1 and R2 are the same or different being a linear or branched C1-C12-alkyl group and R is hydrogen or a linear, branched or cyclic C1 to C12-alkyl.

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