利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.015 秒)

    POLYPROPYLENE COMPOSITION
    1.
    发明公开
    POLYPROPYLENE COMPOSITION 审中-公开

    公开(公告)号：US20240279451A1

    公开(公告)日：2024-08-22

    申请号：US18568696

    申请日：2022-06-09

    申请人： BOREALIS AG

    发明人： Jingbo WANG ,  Markus GAHLEITNER ,  Elisabeth POTTER ,  Meta CIGON

    IPC分类号： C08L23/16 ,  C08F2/00 ,  C08F210/06 ,  C08K5/3432

    CPC分类号： C08L23/16 ,  C08F2/001 ,  C08F210/06 ,  C08K5/3432 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2314/02

    摘要： The invention relates to a polypropylene composition comprising: a) a bimodal random Ziegler-Natta propylene copolymer having a comonomer content of 2.0 to 4.5 wt.-%, said copolymer comprising: (i) 30 to 70 wt.-% of a first propylene copolymer having a comonomer content in the range of 0.1 to 4.5 wt.-% relative to the total weight of the first propylene copolymer, and an MFR2 of 1 to 100 g/10 min; and (ii) 70 to 30 wt.-% of a second propylene copolymer having a comonomer content in the range of 1.0 to 15 wt.-% relative to the total weight of the second propylene copolymer and an MFR2 of 1 to 100 g/10 min; with the proviso that the comonomer content of the second propylene copolymer (ii) is higher than for the first propylene copolymer (i); and b) at least one hindered amine light stabiliser.

    HETEROPHASIC POLYPROPYLENE COMPOSITION
    4.
    发明申请
    HETEROPHASIC POLYPROPYLENE COMPOSITION 有权

    公开(公告)号：US20220306851A1

    公开(公告)日：2022-09-29

    申请号：US17610765

    申请日：2020-05-14

    申请人： BOREALIS AG

    发明人： Jingbo WANG ,  Elisabeth POTTER ,  Luc MONNISSEN ,  Meta CIGON

    IPC分类号： C08L23/16 ,  C08L23/08

    摘要： A heterophasic polypropylene composition comprises a matrix based on a propylene-random copolymer and a linear low density polyethylene dispersed in the matrix. The heterophasic polypropylene composition has both improved impact strength and reduced amount of fraction soluble in cold xylene (XCS), while maintaining optical properties. Further, the heterophasic polypropylene composition has an optimised ratio of impact strength to the amount of fraction soluble in cold xylene (XCS).p.

    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES
    5.
    发明申请
    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES 有权

    公开(公告)号：US20220289955A1

    公开(公告)日：2022-09-15

    申请号：US17635764

    申请日：2020-08-04

    申请人： Borealis AG

    发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

    IPC分类号： C08L23/12 ,  C08L23/06

    摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin heterophasic polypropylene block copolymer; wherein that the weight proportions of A) and B) add up to 100 wt.-%. Also disclosed are a process for manufacturing the polymer composition and articles comprising the polymer composition.

    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES
    7.
    发明申请
    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES 有权

    公开(公告)号：US20220356330A1

    公开(公告)日：2022-11-10

    申请号：US17635892

    申请日：2020-08-04

    申请人： Borealis AG

    发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

    IPC分类号： C08L23/12 ,  C08L23/06

    摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin polypropylene homopolymer. Also disclosed are a process for manufacturing the polymer composition, a process for improving mechanical properties of a polymer blend A) by incorporating B) into A) and articles made from the resulting polymer composition.

    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES
    8.
    发明申请
    POLYPROPYLENE - POLYETHYLENE BLENDS WITH IMPROVED PROPERTIES 有权

    公开(公告)号：US20220306844A1

    公开(公告)日：2022-09-29

    申请号：US17635838

    申请日：2020-08-04

    申请人： Borealis AG

    发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

    IPC分类号： C08L23/06 ,  C08L23/12

    摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin random polypropylene copolymer wherein the weight proportions of components A) and B) add up to 100 wt.-%. Also disclosed are a process for manufacturing the polymer composition to the use of component B) for improving mechanical properties of polymer blends A) and to articles comprising the polymer composition.

    PROCESS FOR PREPARING A CAP OR CLOSURE
    9.
    发明申请
    PROCESS FOR PREPARING A CAP OR CLOSURE 有权

    公开(公告)号：US20220227030A1

    公开(公告)日：2022-07-21

    申请号：US17607059

    申请日：2020-04-28

    申请人： BOREALIS AG

    发明人： Jingbo WANG ,  Markus GAHLEITNER ,  Elisabeth POTTER ,  Luc MONNISSEN ,  Meta CIGON ,  Daniela MILEVA

    IPC分类号： B29C45/00 ,  C08F110/06 ,  B29C45/72

    摘要： A process for producing a cap or closure comprising obtaining a polypropylene composition by sequential polymerization comprising the steps: A) polymerizing in a first reactor, preferably a slurry reactor, in the presence of a Ziegler-Natta catalyst monomers comprising propylene and optionally one or more comonomers selected from ethylene and C4-C10 alpha-olefins, to obtain a first propylene polymer fraction having a comonomer content in the range of 0.0 to 1.8 wt %, and a MFR2 in the range of from 12.0 to 40.0 g/10 min, as measured according to ISO 1133 at 230° C. under a load of 2.16 kg; B) polymerizing in a second reactor, preferably a first gas-phase reactor, monomers comprising propylene and one or more comonomers selected from ethylene and C4-C10 alpha-olefins, in the presence of the first propylene polymer fraction, to obtain a second propylene polymer fraction, wherein the polypropylene composition comprising said first and second propylene polymer fractions has an MFR2 in the range of from 12.0 to 60.0 g/10 min, as measured according to ISO 1133 at 230° C. under a load of 2.16 kg, has a comonomer content in the range of from 2.2 to 5.0 wt % and wherein the ratio of the comonomer content of component A) to the comonomer content of the polypropylene composition is 0.35 or less, C) melting, extruding and moulding the polypropylene composition in the presence of at least one nucleating agent to prepare a cap or closure; and D) exposing the cap or closure obtained in step (C) to a cooling rate of 50 K/s or more.