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    POLYPROPYLENE COMPOSTION FOR CABLE INSULATION
    2.
    发明公开
    POLYPROPYLENE COMPOSTION FOR CABLE INSULATION 审中-公开

    公开(公告)号：US20240158623A1

    公开(公告)日：2024-05-16

    申请号：US18283086

    申请日：2022-03-23

    Applicant: Borealis AG

    Inventor： Thomas Gkourmpis ,  Katja Klimke ,  Per-Ola Hagstrand ,  Ulf Nilsson ,  Lars Efraimsson ,  Anette Johansson

    IPC: C08L23/14 ,  H01B3/30

    CPC classification number: C08L23/14 ,  H01B3/307 ,  C08L2203/206 ,  C08L2207/02

    Abstract: The present invention relates to a polypropylene composition comprising a copolymer of propylene and comonomer units selected from ethylene and alpha-olefins having from 4 to 12 carbon atoms with a total amount of comonomer units of from 10.0 to 16.0 wt %, based on the total amount of monomer units in the polypropylene composition, wherein the polypropylene composition has a xylene cold soluble (XCS) fraction in a total amount of from 25.0 to 50.0 wt %, based on the total weight amount of the polypropylene composition, with an amount of comonomer units of at least 22 wt %, based on the total amount of monomer units in the xylene cold soluble (XCS) fraction, a melt flow rate MFR2 of from 0.5 to 2.5 g/10 min, a flexural modulus of not more than 385 MPa, and wherein the polypropylene composition is free of an alpha-nucleating agent, an article comprising said polypropylene composition, preferably a cable comprising an insulation layer comprising said polypropylene composition and the use of said polypropylene composition as cable insulation for medium and high voltage cables.

    LOW DENSITY POLYETHYLENE FOR EXTRUSION COATING
    6.
    发明申请
    LOW DENSITY POLYETHYLENE FOR EXTRUSION COATING 审中-公开
    低密度聚乙烯挤出涂层

    公开(公告)号：US20150111053A1

    公开(公告)日：2015-04-23

    申请号：US14403972

    申请日：2012-12-07

    Applicant: BOREALIS AG

    Inventor： Auli Nummila-Pakarinen ,  Bernt-Ake Sultan ,  Bjorn Voigt ,  Gabriel Ruess ,  Martin Anker ,  Mattias Bergqvist ,  Thomas Gkourmpis ,  Thomas Hjertberg

    IPC: C08F110/02 ,  C09D123/06 ,  B05D1/40

    CPC classification number: C08F110/02 ,  B05D1/40 ,  B05D2507/015 ,  B32B27/32 ,  C08F2500/04 ,  C08F2500/08 ,  C09D123/06 ,  Y10T428/31938 ,  C08F2/01 ,  C08F2/001 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/14 ,  C08F2500/17 ,  C08F2500/26

    Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is 15 or less, a storage modulus G′, measured at a loss modulus G″ of 5 kPa, which is above 3000 Pa, a weight average molecular weight (Mw) which is between 192000 and 250000 g/mol and has a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 3.0 g/10 min, compositions, a process for production of the low density polyethylene, a low density polyethylene which is obtainable by the process, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process or a method for an extrusion lamination process, an article, e.g. an extrusion article, an extrusion lamination article, film blowing article, film casting article, wire and cable extrusion article, injection moulding article, blow moulding article or pipe extrusion article, and uses of the low density polyethylene.

    Abstract translation: 本发明涉及分子量分布Mw / Mn为15以下的低密度聚乙烯，在损耗模量G“为5kPa，3000Pa以上测定的储能模量G'，重均分子量 重量（Mw）为192000至250000g / mol，并具有根据ISO 1133（190℃，2.16kg）的高于3.0g / 10min的熔体流动速率（MFR），组成， 生产低密度聚乙烯，通过该方法获得的低密度聚乙烯，用于在低密度聚乙烯中引入亚乙烯基的连续乙烯聚合方法，挤出涂布方法或挤出层压方法的方法，制品 ，例如 挤出制品，挤出层压制品，吹膜制品，薄膜浇铸制品，电线和电缆挤出制品，注射成型制品，吹塑制品或管材挤出制品以及低密度聚乙烯的用途。

    SEMICONDUCTIVE POLYPROPYLENE COMPOSITION
    7.
    发明公开
    SEMICONDUCTIVE POLYPROPYLENE COMPOSITION 审中-公开

    公开(公告)号：US20240002647A1

    公开(公告)日：2024-01-04

    申请号：US18039023

    申请日：2021-11-29

    Applicant: Borealis AG

    Inventor： Thomas Gkourmpis ,  Katja Ellen Klimke ,  Per-Ola Hagstrand ,  Ulf Nilsson ,  Lars Efraimsson ,  Anette Johansson

    IPC: C08L23/14 ,  C08K3/04 ,  H01B3/44

    CPC classification number: C08L23/142 ,  C08K3/04 ,  H01B3/441 ,  C08L2203/202 ,  C08L2207/02 ,  C08L2308/00 ,  C08L2314/02

    Abstract: The present invention relates to a semiconductive composition comprising (A) at least 52.0 wt %, preferably from 55.0 to 90.0 wt %, more preferably from 60.0 to 85.0 wt %, most preferably from 65.0 to 80.0 wt % of a heterophasic propylene copolymer having a matrix phase and an elastomeric phase dispersed in said matrix phase, based on the total weight amount of the semiconductive composition; and (B) from 5.0 to 40.0 wt %, preferably from 10.0 to 38.0 wt %, more preferably from 15.0 to 35.0 wt %, most preferably from 20.0 to 33.0 wt % of carbon black based on the total weight amount of the semiconductive composition, an article comprising said semiconductive composition, preferably a cable comprising an semiconductive layer comprising said semiconductive composition and the use of said semiconductive composition as inner and/or outer semiconductive layer for medium and high voltage cables.

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