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    Polypropylene-Polyethylene Composition with Improved Toughness
    163.
    发明申请
    Polypropylene-Polyethylene Composition with Improved Toughness 有权

    公开(公告)号：US20220325081A1

    公开(公告)日：2022-10-13

    申请号：US17607609

    申请日：2020-04-28

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Hermann Braun

    IPC: C08L23/06 ,  C08L23/12 ,  C08L23/14 ,  C08L23/20

    Abstract: It is provided a polymer composition including at least the following components A) 70 to 97 wt.-% based on the overall weight of the polymer composition of a polymer blend, including a1) 50 to 95 wt.-% of polypropylene; a2) 5 to 50 wt.-% of polyethylene; B) 3 to 30 wt.-% based on the overall weight of the polymer composition of a copolymer of propylene and 1-hexene, including b1) 30 to 70 wt.-% of a first random copolymer of propylene and 1-hexene; and b2) 30 to 70 wt.-% of a second random copolymer of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer b1); with the provisos that the weight proportions of components a1) and a2) add up to 100 wt.-%; the weight proportions of components b1) and b2) add up to 100 wt.-%; component A) has a MFR2 (230° C., 2.16 kg) determined according to ISO 1133 in the range from 1.0 to 50.0 g/10 min; component B) has a 1-hexene content in the range of 2.0 to 8.0 wt.-% based on the overall weight of component B); and the polymer composition is free from plastomers being an elastomeric copolymer of ethylene and 1-octene having a density in the range from 0.860 to 0.930 g/cm3.

    Heterophasic Polyolefin Composition
    167.
    发明申请
    Heterophasic Polyolefin Composition 有权

    公开(公告)号：US20220227983A1

    公开(公告)日：2022-07-21

    申请号：US17571704

    申请日：2022-01-10

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Pauli Leskinen

    IPC: C08L23/22

    Abstract: A heterophasic polyolefin composition comprising 55 to 95 wt.-% based on the total weight of the heterophasic polyolefin composition of a propylene butene random copolymer (A) having an MFR2 (230° C.) of 0.3 to 100.0 g/10 min and a butene content of 1.5 to 8.0 wt.-%, wherein the propylene butene random copolymer is obtained by a process using a single site catalyst (I) and 5 to 45 wt.-% based on the total weight of the heterophasic polyolefin composition of a copolymer of ethylene (B) having a density in the range of 910 to 935 kg/m3 and an MFR2 (190° C.) of 0.5 to 10 g/10 min, wherein the copolymer of ethylene (B) is obtained by a process using a single site catalyst (II).

    Heterophasic copolymer
    168.
    发明授权
    Heterophasic copolymer 有权

    公开(公告)号：US11299610B2

    公开(公告)日：2022-04-12

    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 ,  C08L23/14 ,  C08L23/16 ,  C08F4/659

    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.

    Nucleated C3C4 copolymers and nucleated C3C4C2 terpolymers
    169.
    发明授权
    Nucleated C3C4 copolymers and nucleated C3C4C2 terpolymers 有权

    公开(公告)号：US11292901B2

    公开(公告)日：2022-04-05

    申请号：US16609485

    申请日：2018-03-29

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Petar Emilov Doshev ,  Markus Gahleitner ,  Cornelia Anita Tranninger ,  Elisabeth Potter ,  Johanna Lilja

    IPC: C08L23/14 ,  C08L23/20 ,  C08L23/16 ,  C08K5/1565 ,  C08K5/20 ,  C08L25/02

    Abstract: A propylene butylene polymer composition comprising A) a propylene butylene copolymer or a propylene butylene ethylene terpolymer which is—free of phthalic acid esters as well as decomposition products thereof; —obtained by a Ziegler-Natta catalyst and B) a mixture of at least one particulate and at least one soluble nucleating agent, whereby the propylene butylene polymer composition has—a MFR (2.16 kg/210° C.) in the range of 12 to 50 g/10 min—a tensile modulus (measured on injection moulded test specimens in accordance with ISO 527) of more than 1200 MPa—a Tm of more than 150° C.—an amount of xylene cold soluble (XCS) fraction of less than 7.0 wt.-% and whereby the propylene butylene copolymer includes monomer units derived from a) propylene in an amount of 91-96 wt.-% b) butylene in an amount of 4-9 wt.-% with respect to the total weight of the propylene butylene copolymer. or wherein the propylene butylene ethylene terpolymer includes monomer units derived from a) propylene in an amount of 90-96 wt.-% b) butylene in an amount of 4-9 wt.-% c) ethylene in an amount of not more than 1.0 wt.-% with respect to the total weight of the propylene butylene ethylene terpolymer.

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