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    MULTILAYER STRUCTURE
    1.
    发明申请
    MULTILAYER STRUCTURE 审中-公开

    公开(公告)号：US20190299574A1

    公开(公告)日：2019-10-03

    申请号：US16303837

    申请日：2017-05-08

    申请人： BOREALIS AG

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

    IPC分类号： B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B37/15

    摘要： 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 of the EVOH layer. Furthermore, the tie layers comprise one or more copolymers of ethylene.

    COLLATION SHRINK FILM
    4.
    发明申请
    COLLATION SHRINK FILM 有权

    公开(公告)号：US20220097351A1

    公开(公告)日：2022-03-31

    申请号：US17594117

    申请日：2020-04-06

    申请人： Borealis AG

    发明人： Chantal Semaan ,  Auli Nummila-Pakarinen ,  Christian Goetzloff

    IPC分类号： B32B27/08 ,  B29C48/21 ,  B29C48/08 ,  B32B27/32 ,  B32B27/20

    摘要： The present invention relates to a multilayer collation shrink film comprising at least the following layers: A) a layer comprising at least the following components: a1) a multimodal polymer of ethylene with at least two different comonomers selected from alpha-olefins having from 4 to 10 carbon atoms, which multimodal polymer of ethylene has a density in the range from 910 to 935 kg/m3, and a Mw/Mn of 2 to 8; a2) a multimodal terpolymer of ethylene and two alpha olefin comonomers wherein the multimodal terpolymer has a density in the range from 930 to 950 kg/m3 and a Mw/Mn of 10 to 20; and a3) LORE; B) a layer comprising at least the following components: b1) recycled LORE; and b2) a multimodal terpolymer of ethylene and two alpha olefin comonomers wherein the multimodal terpolymer has a density in the range from 930 to 950 kg/m3 and a Mw/Mn of 10 to 20. The present invention relates further to a method for manufacturing the film according to the present invention and to the use of the film for secondary packaging.

    Process for producing polyolefin film composition and films prepared thereof
    8.
    发明授权
    Process for producing polyolefin film composition and films prepared thereof 有权

    公开(公告)号：US11180586B2

    公开(公告)日：2021-11-23

    申请号：US16348066

    申请日：2017-11-16

    申请人： Borealis AG

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

    IPC分类号： C08F110/02 ,  C08F2/01 ,  C08F2/34 ,  C08F210/16 ,  C08J5/18 ,  C08L23/06 ,  C08L23/08 ,  C08F2/00 ,  B29C49/00 ,  B01J19/18 ,  B29C48/00 ,  B29K23/00 ,  B29L7/00

    摘要： 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.

    A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF
    10.
    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

    申请人： Borealis AG

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

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

    摘要： 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.