中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.018 seconds)

    A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF
    11.
    发明申请
    A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF 审中-公开

    公开(公告)号：US20190300630A1

    公开(公告)日：2019-10-03

    申请号：US16348066

    申请日：2017-11-16

    Applicant: Borealis AG

    Inventor： Jari Äärilä ,  Auli Nummila-Pakarinen ,  Jarmo Kela ,  Anh Tuan Tran

    IPC: C08F110/02 ,  C08F210/16 ,  C08F2/01 ,  C08J5/18 ,  C08F2/34 ,  C08L23/08 ,  C08L23/06

    Abstract: The present invention deals with a process for producing a multimodal ethylene polymer composition suitable for producing films by blow moulding and comprising the steps of (i) homopolymerising ethylene or copolymerising ethylene and an alpha-olefin comonomer in a first polymerisation step in the presence of a silica supported Ziegler-Natta catalyst to produce a first ethylene homo- or copolymer (PEI) having a density of from 940 to 980 kg/m3 and a melt flow rate MFR2 of from 2 to 1000 g/10 min, provided that if the first ethylene homo- or copolymer (PE1) is a copolymer, MFR2 thereof is in the range of 2 to 100 g/10 min; (ii) homopolymerising ethylene or copolymerising ethylene and an alpha-olefin comonomer in a second polymerisation step in the presence of the first ethylene homo- or copolymer to produce a first ethylene polymer mixture (PEM1) comprising the first ethylene homo- or copolymer and a second ethylene homo- or copolymer (PE2), said first ethylene polymer mixture having a density of from 940 to 980 kg/m3 and a melt flow rate MFR2 of from 10 to 1000 g/10 min; (iii) copolymerising ethylene and an alpha-olefin comonomer in a third polymerisation step in the presence of the first ethylene polymer mixture (PEM1) to produce a second ethylene polymer mixture (PEM2) comprising the first ethylene polymer mixture (PEM1) and a third ethylene copolymer (PE3), said second ethylene polymer mixture (PEM2) having a density of from 915 to 940 kg/m3 and a melt flow rate MFR5 of from 0.3 to 5 g/10 min, and wherein the second ethylene polymer mixture comprises from 10 to 35% by weight of the first ethylene homo- or copolymer, from 10 to 35% by weight of the second ethylene homo- or copolymer and from 45 to 70% by weight of the third ethylene copolymer.

    LOW DENSITY POLYETHYLENE FOR EXTRUSION COATING
    13.
    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。

    MULTILAYER STRUCTURE
    14.
    发明申请
    MULTILAYER STRUCTURE 有权

    公开(公告)号：US20220402252A1

    公开(公告)日：2022-12-22

    申请号：US17893408

    申请日：2022-08-23

    Applicant: BOREALIS AG

    Inventor： Nina Ackermans ,  Paulo Cavacas ,  Willem De Wever ,  Auli Nummila-Pakarinen

    IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B37/15 ,  B29C48/154 ,  B32B7/12 ,  B29C48/21

    Abstract: The present invention deals with a multilayer structure comprising a first polyethylene layer as a first external layer. The first polyethylene layer is oriented in at least machine direction. The structure also comprises a second polyethylene layer as a second external layer. It further comprises a layer made of a copolymer of ethylene and vinyl alcohol (EVOH) between the first external layer and the second external layer and a tie layer on each side EVOH layer. Furthermore, the tie layers comprise one or more copolymers of ethylene.

    Extrusion coating of low density polyethylene and heat-sealed article made therefrom
    15.
    发明授权
    Extrusion coating of low density polyethylene and heat-sealed article made therefrom 有权

    公开(公告)号：US11097305B2

    公开(公告)日：2021-08-24

    申请号：US15100893

    申请日：2014-12-17

    Applicant: Borealis AG

    Inventor： Auli Nummila-Pakarinen ,  Mikko Peltovuori ,  Mattias Bergqvist

    IPC: B27B27/00 ,  B27B27/10 ,  B05D1/26 ,  B32B15/08 ,  B32B27/12 ,  B32B27/08 ,  B32B27/36 ,  B32B27/32 ,  B32B27/10 ,  B32B27/34 ,  B32B15/20 ,  C09D123/06

    Abstract: The present invention relates to the use of a at least a part of a polymer layer comprising a composition (Co), the composition comprising a low density polyethylene (LDPE) produced in a tubular reactor which composition is free of additives as a thermoplastic surface of an extrusion coated structure comprising the polymer layer and a first substrate for preparing heat-sealed articles by heat-sealing of said thermoplastic surface with a second substrate; and The use of a at least a part of a polymer layer comprising a composition (Co), the composition comprising a low density polyethylene (LDPE) having a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) higher than 3.0 g/10 min; a molecular weight distribution Mw/Mn which is greater than 10; and a vinylidene content which is at least 15/100 k C; which composition is free of additives as a thermoplastic surface of an extrusion coated structure comprising the polymer layer and a first substrate for preparing heat-sealed articles by heat-sealing of said thermoplastic surface with a second substrate.

    Ethylene polymers for extrusion coating
    16.
    发明授权
    Ethylene polymers for extrusion coating 有权

    公开(公告)号：US10745498B2

    公开(公告)日：2020-08-18

    申请号：US14403985

    申请日：2012-12-07

    Applicant: BOREALIS AG

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

    IPC: C08F10/02 ,  B29C48/15 ,  B29K23/00 ,  C08F110/02

    Abstract: The present invention relates to low density polyethylene having a melt flow rate (MFR) according to ISO 1133 (190° C., 2.16 kg) which is higher than 4.0 g/10 min, a storage modulus G′, measured at a loss modulus G″ of 5 kPa, which is above 3000 Pa and a vinylidene content which is at least 24/100 k C, 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 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.

    A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF
    17.
    发明申请
    A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF 审中-公开

    公开(公告)号：US20200010655A1

    公开(公告)日：2020-01-09

    申请号：US16348204

    申请日：2017-11-16

    Applicant: Borealis AG

    Inventor： Jari Äärilä ,  Auli Nummila-Pakarinen ,  Jarmo Kela ,  Anh Tuan Tran

    IPC: C08L23/08 ,  C08J5/18 ,  B29C48/00

    Abstract: The present invention deals with a process for producing a multimodal ethylene polymer composition suitable for producing films by blow moulding. The process comprises (i) copolymerising ethylene and an alpha-olefin comonomer in a first polymerisation step in the presence of a silica supported Ziegler-Natta polymerisation catalyst to produce a first ethylene homo- or copolymer (PE1) having a density of from 940 to 980 kg/m3 and a melt flow rate MFR2 of from 400 to 1000 g/10 min; (ii) copolymerising ethylene and an alpha-olefin comonomer in a second polymerisation step in the presence of the first ethylene copolymer to produce a first ethylene polymer mixture (PEM1) comprising the first ethylene copolymer and a second ethylene copolymer, said first ethylene polymer mixture having a density of from 940 to 980 kg/m3 and a melt flow rate MFR2 of from 150 to 800 g/10 min, and wherein the MFR2 of the first ethylene copolymer (PEI) is higher than first ethylene polymer mixture (PEM1) and (iii) copolymerising ethylene and an alpha-olefin comonomer in a third polymerisation step in the presence of the first ethylene polymer mixture to produce a second ethylene polymer mixture (PEM2) comprising the first ethylene polymer mixture and a third ethylene copolymer, said second ethylene polymer mixture having a density of from 915 to 925 kg/m3 and a melt flow rate MFR5 of from 0.3 to 5 g/10 min.

    Low density polyethylene for extrusion coating
    18.
    发明授权
    Low density polyethylene for extrusion coating 有权

    公开(公告)号：US10144789B2

    公开(公告)日：2018-12-04

    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: B05D1/40 ,  B32B27/32 ,  C08F110/02 ,  C09D123/06

    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 molding article, blow molding article or pipe extrusion article, and uses of the low density polyethylene.

    POLYMER COMPOSITIONS FOR EXTRUSION COATING
    19.
    发明申请
    POLYMER COMPOSITIONS FOR EXTRUSION COATING 审中-公开

    公开(公告)号：US20180298168A1

    公开(公告)日：2018-10-18

    申请号：US15569351

    申请日：2016-05-04

    Applicant: BOREALIS AG

    Inventor： Auli Nummila-Pakarinen ,  Mikko Peltovuori

    IPC: C08L23/06 ,  C09D123/06 ,  C09D123/08 ,  C08L23/08 ,  B05D1/26

    Abstract: The present invention relates to a polymer composition suitable to be used in extrusion coated articles as a heat sealable layer. The polymer composition comprises 10 to 60 wt-% of low density polyethylene and 90 to 40 wt-% of a plastomer, wherein the low density polyethylene has melt flow rate (MFR2), measured according to ISO1133 (190 ° C., 2.16 kg load) of 2.5 to 10 kg/10 min, density 920 kg/m3 or less, and the plastomer is an ethylene copolymer with at least one α-olefin comonomer of 4 to 10 C-atoms, and has a density of 880 to 915 kg/m3. The invention relates also to the extrusion coated article and preparation thereof, the article comprising a substrate layer, at least one heat sealable layer and optionally at least one additional layer, wherein the at least one heat sealable layer is located on at least one surface of the extrusion coated article.

Patent Agency Ranking