公开(公告)号：US20240425687A1

公开(公告)日：2024-12-26

申请号：US18698528

申请日：2022-10-05

Applicant: BOREALIS AG

Inventor： Susanne NILSSON ,  Joy Jie CHENG ,  Floran Régis PRADES ,  Antonios GITSAS

IPC: C08L23/08 ,  C08K3/013 ,  C08K5/3492 ,  C08L23/06 ,  C08L23/12 ,  C08L23/14 ,  H01B3/44

Abstract: The invention provides a cable, preferably a power cable, comprising one or more conductors surrounded by at least one layer, preferably an insulation layer, wherein said layer comprises a polymer composition comprising: (i) at least 75 wt % of an ethylene based plastomer; and (ii) 0.2 to 10 wt % of an amine filler, oxide filler or mixture thereof; and wherein said polymer composition has a dielectric loss expressed as tan δ (50 Hz) of 200×10−4 or less, when measured at 500 V/mm and 90° C. as described in the description part under “Determination methods”.

公开(公告)号：US20220033631A1

公开(公告)日：2022-02-03

申请号：US17413612

申请日：2019-12-20

Applicant: BOREALIS AG

Inventor： Dietrich GLOGER ,  Hermann BRAUN ,  Antonios GITSAS ,  Davide TRANCHIDA ,  Franciscus JACOBS ,  Wolfram STADLBAUER

IPC: C08L23/12 ,  C08L23/14 ,  C08L23/20 ,  B29C55/16 ,  B29C48/00 ,  C08J5/18 ,  H01G4/18

Abstract: The present invention is directed to a biaxially oriented polypropylene (BOPP) film with improved breakdown strength and to a capacitor comprising an insulation film comprising a layer of the biaxially oriented polypropylene film of the present invention. The present invention is further directed to a process for producing a biaxially oriented polypropylene film. Finally, the present invention is further directed to the use of a biaxially oriented polypropylene film of the present invention as layer of an insulation film of a capacitor. The BOPP film comprises a polypropylene composition, wherein the polypropylene composition comprises a high isotactic homopolymer of propylene and a polymeric α-nucleating agent. The BOPP film has a dielectric breakdown field strength Eb63.2 of at least 595 kV/mm. The process for producing a biaxially oriented polypropylene film comprises the steps of extruding a polypropylene composition to a flat film and orienting the flat film simultaneously in the machine direction and in the transverse direction.

公开(公告)号：US20250162294A1

公开(公告)日：2025-05-22

申请号：US18839301

申请日：2022-02-17

Applicant: BOREALIS AG ,  ABU DHABI POLYMERS CO. LTD (BOROUGE) - SOLE PROPRIETORSHIP L.L.C.

Inventor： Xinrong DUAN ,  Antonios GITSAS ,  Anthony BERTHELIER ,  Chantal SEMAAN ,  Andrey BURYAK ,  Subrata Kumar DAS ,  Raghvendra SINGH ,  Mohammad AL TALAFHA ,  Peter MALMROS

IPC: B32B27/08 ,  B32B7/12 ,  B32B27/32 ,  B32B27/36 ,  B65D65/40

Abstract: The invention relates to a laminated film comprising a polyethylene sealant film comprising at least an outer layer O, an inner layer I and a core layer C, the core layer C being present between the outer layer O and the inner layer I, wherein the inner layer I is made of an inner layer composition comprising from 75 to 95 wt. % of a component AI that is a linear low density ethylene polymer having a density of from 915 to 925 kg/m3 and a melt flow rate (MFR2) of from 0.5 to 3.0 g/10 min, determined according to ISO 1133, the wt. % being based on the total weight of the inner layer composition; and a substrate film laminated to the polyethylene sealant film, wherein the substrate film comprises a polyester polymer, selected from the group consisting of polyethylene terephthalate, polybutylene terephthalate and polytrimethylene terephthalate, and mixtures thereof; wherein the seal initiation temperature SIT (5 N) of the laminated film is less than 100° C., determined at the inner layer of the polyethylene sealant film according to ASTM F2029, ASTM F88.
The invention further relates to an article comprising the laminated film and to the use of laminated film for packaging of an article. Moreover, the invention relates to the use of the polyethylene sealant film for improving the sealing performance of a substrate film comprising a polyester polymer.