公开(公告)号：US20250163254A1

公开(公告)日：2025-05-22

申请号：US18832290

申请日：2023-01-24

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Friedrich BERGER ,  Arnaud ALABRUNE ,  Chantal SEMAAN

IPC: C08L23/0807 ,  C08J5/18

Abstract: Disclosed is a blend of a low density polyethylene (LDPE) and a specific multimodal metallocene catalysed linear low density polyethylene (mLLDPE), which provides films with well-balanced mechanical properties, especially dart drop (impact strength) and tensile modulus; i.e. high stiffness as well as high toughness, and additionally protrusion puncture resistance.

公开(公告)号：US20240400806A1

公开(公告)日：2024-12-05

申请号：US18699065

申请日：2022-10-07

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Friedrich BERGER ,  Arnaud ALABRUNE ,  Elisabeth POTTER

IPC: C08L23/08 ,  B32B27/08 ,  B32B27/32 ,  C08J5/18

Abstract: The invention provides a biaxially oriented film comprising a polymer composition having a density 954 to 970 kg/m3 and an MFR2 of 0.5 to 2.0 g/10 min, wherein said composition comprises: (i) 90 to 99 wt % of a multimodal high density polyethylene (HDPE) having a density of 945-970 kg/m3, an MFR2 of 0.1-3.0 g/10 min and a molecular weight distribution (MWD) of 5-25, the multimodal HDPE comprising at least two fractions: (A) 30 to 70 wt % of a lower molecular weight fraction being a polyethylene with a density of 955-980 kg/m3 and an MFR2 of 100-1000 g/10 min; and (B) 30 to 70 wt % of a higher molecular weight fraction being a polyethylene with a density of 940-960 kg/m3 and an MFR2 of 0.0001-1.0 g/10 min measured according to ISO 1133; and (ii) 1 to 10 wt % of a hydrocarbon resin.

公开(公告)号：US20250162228A1

公开(公告)日：2025-05-22

申请号：US18846869

申请日：2023-03-16

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Friedrich BERGER ,  Arnaud ALABRUNE ,  Chantal SEMAAN ,  Anthony BERTHELIER

IPC: B29C48/00 ,  B29C48/09 ,  B29C48/21 ,  B29K23/00 ,  B29K105/00 ,  B29L7/00 ,  B32B27/08 ,  B32B27/32 ,  B32B37/15

Abstract: The present disclosure relates to a multilayered film including a skin layer, a core layer and a sealing layer; wherein the sealing layer includes: (a) 15 to 85 wt.-% based on a total weight of the sealing layer of a specific metallocene-catalysed multimodal polyethylene copolymer; and (b) 15 to 85 wt.-% based on the total weight of the sealing layer of a specific plastomer, wherein components (a) and (b) add up to 100 wt.-%. The multilayered film can be used as a packing material, for food and/or medical products.

公开(公告)号：US20240384047A1

公开(公告)日：2024-11-21

申请号：US18693849

申请日：2022-09-21

Applicant: BOREALIS AG

Inventor： Jingbo WANG ,  Friedrich BERGER ,  Juulia HIRVONEN ,  Arnaud ALABRUNE ,  Elisabeth POTTER ,  Tuan Anh TRAN

IPC: C08J5/18

Abstract: The invention provides a biaxially oriented film comprising a multimodal high density polyethylene (HDPE), wherein the multimodal HDPE has a density determined according to ISO 1183 in the range of 952 to 968 kg/m3 and an MFR2 of 0.3 to 3.0 g/10) min when measured at 190° C. with a load of 2.16 kg according to ISO 1133, and wherein the multimodal HDPE comprises at least two fractions: (C) 30 to 70 wt % relative to the total weight of the multimodal HDPE, of a lower molecular weight fraction being a polyethylene with a density in the range of 955 to 980 kg/m3 and an MFR2 of 100 to 2000 g/10 min when measured at 190° C. with a load of 2.16 kg according to ISO 1133; and (D) 30 to 70 wt % relative to the total weight of the multimodal HDPE, of a higher molecular weight fraction being a polyethylene with a density in the range of 925 to 970 kg/m3 and an MFR2 of 0.0001 to 1.0 g/10 min when measured at 190° C. with a load of 2.16 kg according to ISO 1133.