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    PROPYLENE BUTENE COPOLYMER
    2.
    发明申请
    PROPYLENE BUTENE COPOLYMER 有权

    公开(公告)号：US20210395474A1

    公开(公告)日：2021-12-23

    申请号：US17292062

    申请日：2019-11-14

    Applicant: BOREALIS AG

    Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Pauli LESKINEN ,  Matthias HOFF

    IPC: C08J5/18 ,  C08F297/08

    Abstract: The invention provides a multimodal propylene butene random copolymer having a melt flow rate (MFR2) of 1.0 to 20.0 g/10 min and a butene content of 1.5 to 8.0 wt %, wherein said copolymer is prepared using a single site catalyst and wherein said copolymer comprises (i) 30 to 70 wt % of a propylene butene copolymer (A) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 0.5 to 10.0 wt %; and (ii) 70 to 30 wt % of a propylene butene copolymer (B) having an MFR2 of 0.5 to 20.0 g/10 min and a butene content of 1.0 to 8.0 wt %; wherein copolymers (A) and (B) are different.

    PROCESS FOR PRODUCING HETEROPHASIC COPOLYMERS OF PROPYLENE
    4.
    发明申请
    PROCESS FOR PRODUCING HETEROPHASIC COPOLYMERS OF PROPYLENE 审中-公开

    公开(公告)号：US20200231795A1

    公开(公告)日：2020-07-23

    申请号：US16842541

    申请日：2020-04-07

    Applicant: BOREALIS AG

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

    IPC: C08L23/14 ,  C08F210/06 ,  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 MFR2 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 co-monomer into the third polymerisation reactor; (8) producing the heterophasic copolymer composition comprising the first polymer mixture and a third copolymer

    POLYPROPYLENE COMPOSITION FOR AUTOMOTIVE INTERIOR APPLICATIONS
    8.
    发明申请
    POLYPROPYLENE COMPOSITION FOR AUTOMOTIVE INTERIOR APPLICATIONS 审中-公开

    公开(公告)号：US20170137617A1

    公开(公告)日：2017-05-18

    申请号：US15310283

    申请日：2015-05-18

    Applicant: BOREALIS AG

    Inventor： Jingbo WANG ,  Luigi RESCONI ,  Petar DOSHEV ,  Markus GAHLEITNER

    IPC: C08L23/14

    Abstract: Polypropylene composition comprising a heterophasic propylene copolymer and a mineral filler, wherein said heterophasic propylene copolymer has a melting temperature in the range of 140 to 155° C., a xylene cold soluble content in the range of 20 to 35 wt.-% and a comonomer content of the xylene cold soluble fraction in the range of 18 to 95 wt.-%, wherein further the weight ratio between heterophasic propylene copolymer and the mineral filler is in the range of 2/1 to 4/1.

    HETEROPHASIC POLYPROPYLENE COPOLYMERS
    10.
    发明申请
    HETEROPHASIC POLYPROPYLENE COPOLYMERS 有权

    公开(公告)号：US20230002605A1

    公开(公告)日：2023-01-05

    申请号：US17763278

    申请日：2020-09-25

    Applicant: BOREALIS AG

    Inventor： Jingbo WANG ,  Markus GAHLEITNER ,  Klaus BERNREITNER ,  Luigi Maria Cristoforo RESCONI ,  Simon SCHWARZENBERGER

    IPC: C08L23/14 ,  C08F210/06

    Abstract: A heterophasic polypropylene copolymer having an MFR2 of 0.05 to 20 g/10 min (ISO 1133 at 230° C. with a loading of 2.16 kg) and a melting point (Tm) of 156 to 164° C. (measured by DSC according to ISO 11357) wherein the heterophasic polypropylene copolymer comprises at least the following components: (A) 55.0 to 95.0 wt % of a crystalline fraction (CF) having a comonomer content of 0 to 3.0 wt %; and (B) 5.0 to 45.0 wt % of a soluble fraction (SF) having a comonomer content of 12 to 45 wt %; wherein the intrinsic viscosity (IV) (in decalin at 135° C.) of the soluble fraction (SF) is 2.5 to 11 dl/g, and wherein the amount of crystalline fraction (CF) and the amount of soluble fraction (SF) are determined in 1,2,4-trichlorobenzene at 40° C.

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