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    COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER
    21.
    发明申请
    COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER 有权

    公开(公告)号：US20210122907A1

    公开(公告)日：2021-04-29

    申请号：US16635670

    申请日：2018-08-03

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Ting Huang ,  Hongtao Shi ,  Yang Fu ,  Maria Soliman ,  Dong Wan

    IPC: C08L23/12 ,  C08L23/16 ,  C08L23/08 ,  C08K3/013

    Abstract: The invention relates to composition comprising (A) a propylene-based polymer, (B1) a first elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms, (B2) a second elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (B1) the first elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 5 to 50 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein (B2) the second elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 0.55 to 4 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein the total amount of (B1) the first elastomer and (B2) the second elastomer is 2 to 30 wt % based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt % based on the total composition.

    COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER
    22.
    发明申请
    COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER 有权

    公开(公告)号：US20210122906A1

    公开(公告)日：2021-04-29

    申请号：US16635666

    申请日：2018-08-02

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Ting Huang ,  Kai Guo ,  Yang Fu ,  Ji Zhou ,  Dake Shen ,  Maria Soliman

    IPC: C08L23/12

    Abstract: The invention relates to a composition comprising (A) a propylene-based polymer, (B) an elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (A) the propylene-based polymer has a melt flow index of 60 to 150 dg/min measured according to ASTM D1238 (2.16 kg/230° C.) and wherein (B) the elastomer has a density of 0.840 to 0.865 g/cm3, wherein (B) the elastomer has a melt flow index of 3 to 13 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C., wherein the amount of (B) the elastomer is 2 to 30 wt % based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt % based on the total composition.

    PROCESS FOR PRODUCING PIPE BY BIAXIAL ELONGATION
    25.
    发明申请
    PROCESS FOR PRODUCING PIPE BY BIAXIAL ELONGATION 审中-公开

    公开(公告)号：US20200086548A1

    公开(公告)日：2020-03-19

    申请号：US16494461

    申请日：2018-02-21

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Ajay Kumar Taraiya ,  Maria Soliman

    IPC: B29C55/26 ,  B29C48/00 ,  B29C48/09 ,  B29C55/00

    Abstract: The invention relates to a process for producing a biaxially oriented pipe, comprising the steps of: a) forming a polyethylene composition into a tube, wherein the polyethylene composition comprises a bimodal or a multimodal high-density polyethylene (HDPE) and b) stretching the tube of step a) in the axial direction and in the peripheral direction to obtain the biaxially oriented pipe, wherein step b) is performed at an axial draw ratio of 1.1 to 3.2 and an average hoop draw ratio of 1.1 to 2.0 or step b) is performed at an axial draw ratio of 1.1 to 1.9 and an average hoop draw ratio of 1.1 to 2.0, and wherein step b) is performed at a drawing temperature which is 1 to 30° C. lower than the melting point of the polyethylene composition.

    Polyethylene film for heat sealing
    28.
    发明授权
    Polyethylene film for heat sealing 有权

    公开(公告)号：US12215208B2

    公开(公告)日：2025-02-04

    申请号：US17423242

    申请日：2020-01-13

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： Priya Garg ,  Maria Soliman

    IPC: C08F210/16 ,  B29C65/02 ,  B32B27/32 ,  C08F2/06 ,  C08F110/02 ,  C08J5/18 ,  C08L23/00 ,  B29L31/00 ,  C08L23/08

    Abstract: The present invention relates to a film comprising at least one sealing layer wherein at least one layer A of the sealing layer(s) comprises a polyethylene comprising moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene having a density of ≥870 and ≤920 kg/m3 as determined in accordance with ASTM D792 (2013), wherein the polyethylene has: x a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤30.0° C. of ≥5.0 wt %, preferably ≥10.0 wt %, with regard to the total weight of the polyethylene; x a shear storage modulus G′ determined at a shear loss modulus G″=5000 Pa of >700 Pa, G′ and G″ being determined in accordance with ISO 6721-10 (2015) at 190° C.; x a melt mass-flow rate, determined at 190° C. under a load of 2.16 kg in accordance with ASTM D1238 (2013) of ≥2.60 and ≤4.90 g/10 min; and x a chemical composition distribution broadness (CCDB) of ≥15.0, preferably ≥20.0. Such film allows for sealing of the film at a reduced temperature, whilst still providing a desirable seal strength, and a desirable hot-tack strength.

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