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    HIGH MELT FLOW POLYPROPYLENE COMPOSITION
    2.
    发明申请
    HIGH MELT FLOW POLYPROPYLENE COMPOSITION 有权

    公开(公告)号：US20250026872A1

    公开(公告)日：2025-01-23

    申请号：US18713236

    申请日：2022-11-29

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Karlheinz Friedrich ,  Claudia Kniesel ,  Mahdi Abbasi

    IPC: C08F210/06 ,  C08F2/01 ,  C08F4/659 ,  C08F4/6592

    Abstract: The present invention relates to a polypropylene composition comprising a crystalline fraction (CF) and a soluble fraction (SF), both determined according to CRYSTEX QC analysis, whereby said soluble fraction (SF)—is present in the polypropylene composition in an amount in the range of 10.0 to 35.0 wt.-%, preferably in the range of 11.0 to 32.5 wt.-%, more preferably in the range of 12.0 to 30.0 wt.-%, based on the total weight of the polypropylene composition, —has an intrinsic viscosity (iV(SF)) of at least 2.0 dl/g, preferably in the range of 2.3 to 4.5 dl/g, more preferably in the range of 2.5 to 4.3 dl/g, and—has an ethylene content (C2(SF)) in the range of 14.0 to 29.0 wt.-%, preferably in the range of 17.0 to 26.0 wt.-%, more preferably in the range of 19.0 to 24.0 wt.-%, based on the total weight of the soluble fraction (SF), as determined by FT-IR spectroscopy calibrated by quantitative 13C-NMR spectroscopy; wherein the ratio of the intrinsic viscosity of the soluble fraction to the intrinsic viscosity of the crystalline fraction (iV(SF)/(iV(CF)) is in the range of 2.5 to 5.0, preferably in the range of 2.6 to 4.8; and wherein the polypropylene composition has a melt flow rate MFR2 (230° C., 2.16 kg, ISO 1133) in the range of 105 to 320 g/10 min, preferably in the range of 107 to 300 g/10 min, more preferably in the range of 110 to 280 g/10 min; a process for producing said polypropylene composition; an article comprising said polypropylene composition; and the use of said polypropylene composition for the production of an article.

    POLYPROPYLENE COMPOSITION SUITABLE FOR PACKAGING APPLICATIONS
    3.
    发明申请
    POLYPROPYLENE COMPOSITION SUITABLE FOR PACKAGING APPLICATIONS 有权

    公开(公告)号：US20250034380A1

    公开(公告)日：2025-01-30

    申请号：US18711748

    申请日：2022-11-29

    Applicant: Borealis AG

    Inventor： Jingbo Wang ,  Markus Gahleitner ,  Klaus Bernreitner ,  Karlheinz Friedrich ,  Claudia Kniesel ,  Mahdi Abbasi

    IPC: C08L23/12

    Abstract: A composition obtainable by blending components (A) and (B) (A) 50 to 95 wt.-%, preferably 55 to 90 wt.-%, more preferably 60 to 88 wt.-% of a mixed-plastics polypropylene/polyethylene blend; and (B) 5 to 50 wt.-%. preferably 10 to 45 wt.-%, more preferably 12 to 40 wt.-% of a heterophasic propylene copolymer; whereby all percentages refer to the total composition; a process for producing said composition, an article comprising said composition, the use of said composition for the production of an article, and the use of component (B) in said composition for increasing melt flow rate MFR2 (230° C. 2.16 kg. ISO1133) and the flexural modulus and reducing the VOC and FOG content of said composition.

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