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    Polypropylene composition with excellent paint adhesion
    11.
    发明授权
    Polypropylene composition with excellent paint adhesion 有权

    公开(公告)号：US10745548B2

    公开(公告)日：2020-08-18

    申请号：US16464973

    申请日：2017-12-14

    Applicant: BOREALIS AG

    Inventor： Claudia Kniesel ,  Pavel Shutov ,  Susanne Kahlen ,  Daniela Mileva ,  Floran Prades

    IPC: C08L23/12 ,  C08L23/16 ,  C08F2/00

    Abstract: The invention relates to a polypropylene composition (C) comprising: (i) 62 to 85 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO1) with a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of 6.0 to 50.0 g/10 min; (ii) 10 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of a heterophasic propylene copolymer (HECO2) with a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of 0.1 to 5.5 g/10 min; (iii) 5 to 30 wt.-%, based on the total weight of the polypropylene composition (C), of an inorganic filler (F); wherein (a) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower amount [in mol %] of C2 and/or C4 to C12 α-olefin derived comonomer units than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); (b) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO1) has a lower the intrinsic viscosity (IV) than the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2); and (c) the xylene cold soluble (XCS) fraction of the heterophasic propylene copolymer (HECO2) has an intrinsic viscosity (IV) in the range of 6.0 to 15.0 dl/g.

    NOVEL POLYPROPYLENE COMPOSITIONS WITH LOW FOGGING
    13.
    发明申请
    NOVEL POLYPROPYLENE COMPOSITIONS WITH LOW FOGGING 审中-公开

    公开(公告)号：US20190300686A1

    公开(公告)日：2019-10-03

    申请号：US16308199

    申请日：2017-06-20

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Claudia Kniesel ,  Minna Aarnio-Winterhof ,  Karlheinz Friedrich ,  Friedrich Berger

    IPC: C08L23/12

    Abstract: Polypropylene composition comprising (A) 60 to 95 wt % of a heterophasic polypropylene (HECO) comprising 10 to 30 wt % of dispersed phase with the dispersed phase having a comonomer content of 30 to 45 wt % and the HECO having a melt flow rate MFRPP in the range of 12 to 200 g/10 min and being prepared in the presence of a Ziegler Natta catalyst (ZN-C), (B) 0 to 15 wt % of one or more elastomers, (C) 5 to 20 wt % of at least one filler wherein the polypropylene composition fulfils inequation (1) fogging≤0.02 MFRComp+0.3. The composition allows for a well-balanced combination of a good impact/stiffness balance, a good scratch resistance, low VOC and FOG emissions and remarkable good fogging values.

    POLYPROPYLENE COMPOSITION SUITABLE FOR PACKAGING APPLICATIONS
    16.
    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.

    Low EFO polypropylene composition
    19.
    发明授权
    Low EFO polypropylene composition 有权

    公开(公告)号：US10358546B2

    公开(公告)日：2019-07-23

    申请号：US15743051

    申请日：2016-07-27

    Applicant: BOREALIS AG

    Inventor： Jingbo Wang ,  Claudia Kniesel ,  Petar Doshev ,  Floran Prades

    IPC: C08L23/12 ,  C08L23/06 ,  C08L23/08 ,  C08L23/14

    Abstract: Polymer composition comprising at least one polypropylene homopolymer and/or random copolymer, up to 15 wt % of at least one polyethylene, optionally at least one elastomer in an amount of 8 to 40 wt % and optionally fillers and/or additives in an amount of up to 45 wt % based on the total weight of the final polymer composition with the at least one polyethylene having a density of higher than 940 kg/m3, a content of hexane hot extractables of below 0.80 wt % preferably below 0.60 wt %, most preferably below 0.40 wt % and a copolymer/homopolymer (COHO) ratio measured by Temperature Rising Elution Fraction (TREF) up to 6%.

    Polypropylene composition suitable for primerless painting
    20.
    发明授权
    Polypropylene composition suitable for primerless painting 有权

    公开(公告)号：US10208182B2

    公开(公告)日：2019-02-19

    申请号：US15100176

    申请日：2014-12-01

    Applicant: Borealis AG

    Inventor： Dietrich Gloger ,  Claudia Kniesel ,  Georg Grestenberger ,  Daniela Mileva

    IPC: C08K3/34 ,  C08L23/14

    Abstract: The present invention is directed to a polypropylene composition (C), an article comprising the polypropylene composition (C) and the use of the polypropylene composition (C) to reduce paintability failure of a molded article. The polypropylene composition (C) comprises (a) 40.0 to 80.0 wt. %, based on the total weight of the composition, of a propylene copolymer (R-PP) having: (a1) a comonomer content in the range of 1.5 to 8.0 wt. %, and (a2) a melt flow rate MFR2 (230 ° C.) measured according to ISO 1133 in the range of 5.0 to 100.0 g/10 min, and (b) 20.0 to 40.0 wt. %, based on the total weight of the composition, of a mineral filler (F) being selected from the group consisting of talcum, wollastonite, kaolin, and mica, wherein the polypropylene composition (C) has a melt flow rate MFR2 (230 ° C.) measured according to ISO 1133 in the range of 5.0 to 45.0 g/10 min.

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