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    SOFT PROPYLENE COPOLYMER COMPOSITION
    62.
    发明申请
    SOFT PROPYLENE COPOLYMER COMPOSITION 有权

    公开(公告)号：US20220251358A1

    公开(公告)日：2022-08-11

    申请号：US17618739

    申请日：2020-06-15

    申请人： BOREALIS AG

    发明人： Johan Defoer ,  Marc Knaepen

    IPC分类号： C08L23/14 ,  B32B5/02 ,  B32B27/32 ,  B32B27/08 ,  B32B27/12

    摘要： The present invention relates to a propylene copolymer composition comprising (A) from 50.0 to 95.0 wt %, based on the total amount of the propylene copolymer composition, of a heterophasic propylene copolymer having a matrix phase and an elastomeric phase dispersed in said matrix phase, wherein the matrix phase is a propylene random copolymer, the heterophasic propylene copolymer further having a melt flow rate MFR2 of 0.2 to 12.0 g/10 min, determined according to ISO 1133 at a temperature of 230° C. and a load of 2.16 kg, and a xylene cold solubles (XCS) fraction in the range of from 20.0 to 50.0 wt % based on the total amount of the heterophasic propylene copolymer (A), determined according to ISO 16152 at a temperature of 25° C., and (B) from 5.0 to 25.0 wt %, based on the total amount of the propylene copolymer composition, of a propylene based plastomer having a density in the range of from 845 to 870 kg/m3, determined according to ASTM D 1505 on compression moulded test specimens and a melt flow rate MFR2 of 1.0 to 30.0 g/10 min, determined according to ASTM D1238 at a temperature of 230° C. and a load of 2.16 kg, wherein the propylene copolymer composition has a tensile modulus of below 300 MPa, determined according to ISO 527-2, measured on injection moulded test specimens, and follows the following inequation: tensile modulus [MPa]

    A PROCESS AND A MULTI-STAGE REACTOR ASSEMBLY FOR THE PRODUCTION OF POLYOLEFINS
    64.
    发明申请
    A PROCESS AND A MULTI-STAGE REACTOR ASSEMBLY FOR THE PRODUCTION OF POLYOLEFINS 有权

    公开(公告)号：US20220234021A1

    公开(公告)日：2022-07-28

    申请号：US17616433

    申请日：2020-04-06

    申请人： Borealis AG

    发明人： Apostolos Krallis ,  Vasileios Kanellopoulos ,  Erno Elovainio ,  Klaus Nyfors ,  Joana Kettner

    IPC分类号： B01J8/24 ,  B01J8/08 ,  B01J8/18 ,  B01J19/24 ,  C08F210/06 ,  C07F3/02 ,  C07F7/28

    摘要： A process for the production of polyolefins comprising: feeding a slurry comprising at least one polymerization catalyst, at least one carrier liquid, first olefin monomer(s) and optionally at least one first comonomer into at least one loop reactor; polymerizing the first olefin monomer(s) and optionally the at least one first comonomer yielding a first polyolefin; withdrawing the first polyolefin from the loop reactor; feeding the first polyolefin to a gas-solids olefin polymerization reactor, wherein the gas-solids olefin polymerization reactor comprises: a top zone; a middle zone, which comprises a top end in direct contact with said top zone and which is located below said top zone, the middle zone having a generally cylindrical shape; and a bottom zone, which is in direct contact with a bottom end of the middle zone and which is located below the middle zone; introducing a fluidization gas stream into the bottom zone of the gas-solids olefin polymerization reactor; polymerizing second olefin monomer(s) and optionally at least one second comonomer in the presence of the polymerization catalyst and the first polyolefin to a second polyolefin in a dense phase formed by particles of said second polyolefin suspended in an upwards flowing stream of the fluidization gas in the middle zone; introducing a jet gas stream through one or more jet gas feeding ports in a jet gas feeding area of the middle zone at the dense phase in the middle zone of the gas-solids olefin polymerization reactor; withdrawing the second polyolefin from the gas-solids olefin polymerization reactor.

    COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS
    67.
    发明申请
    COMPATIBILIZATION OF RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS 有权

    公开(公告)号：US20220186011A1

    公开(公告)日：2022-06-16

    申请号：US17598494

    申请日：2020-03-26

    申请人： BOREALIS AG

    发明人： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

    IPC分类号： C08L23/16 ,  C08L23/06 ,  C08L23/12 ,  C08J3/00

    摘要： The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a C2C3C4 terpolymer. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a C2C3C4 terpolymer for improving the impact-stiffness balance and the morphology of the blend (A).

    RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS COMPRISING A COMPATIBILIZER
    68.
    发明申请
    RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS COMPRISING A COMPATIBILIZER 有权

    公开(公告)号：US20220177679A1

    公开(公告)日：2022-06-09

    申请号：US17598572

    申请日：2020-03-27

    申请人： BOREALIS AG

    发明人： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

    IPC分类号： C08L23/06 ,  C08J11/04 ,  C08L23/12

    摘要： The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

    Catalysts
    69.
    发明授权
    Catalysts 有权

    公开(公告)号：US11352376B2

    公开(公告)日：2022-06-07

    申请号：US16461517

    申请日：2017-11-17

    申请人： BOREALIS AG

    发明人： Noureddine Ajellal ,  Luigi Resconi ,  Vyatcheslav V. Izmer ,  Dmitry S. Kononovich ,  Alexander Z. Voskoboynikov ,  Ville Virkkunen

    IPC分类号： C07F17/00 ,  C08F4/6592 ,  C08F110/06 ,  C07F7/08 ,  C07C1/20 ,  C07C13/32 ,  C07C41/00 ,  C07C45/68 ,  C07C49/443 ,  C08F4/649 ,  C08F10/06 ,  C07C41/18 ,  C08F4/659

    摘要： A complex of formula (I) wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom or a C1-C20-hydrocarbyl .group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R′ groups taken together can form a ring; R2 and R2′ are each independently a C1-C20 hydrocarbyl group, —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; R5 is a —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group, said R5 group being optionally substituted by one or more halo groups; R5′ is hydrogen or a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; said C1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R6 and R6′ are each independently a C1-20 hydrocarbyl group; —OC1-20 hydrocarbyl group or —SC1-20 hydrocarbyl group; each R1 and R1′ are independently —CH2Rx wherein Rx are each independently H, or a C1-20 hydrocarbyl group, optionally containing heteroatoms.