公开(公告)号：US20240052145A1

公开(公告)日：2024-02-15

申请号：US18266675

申请日：2021-12-06

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Francisco Perez Valencia ,  Mark Johannes Boerakker

IPC: C08L23/06 ,  C08L23/08 ,  C08F4/654

CPC classification number: C08L23/06 ,  C08L23/0815 ,  C08F4/6548 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2314/02 ,  C08L2203/18 ,  C08L2203/16 ,  C08L2203/30

Abstract: An ethylene copolymer having a multimodal molecular mass distribution includes 40 to 80 wt % of an ethylene polymer component A, 5 to 40 wt % of an ethylene copolymer component B of ethylene and an olefin comonomer, having a higher molecular weight Mn than the ethylene homopolymer component A and having a molar comonomer content CB and a density DB, and 5 to 40 wt % of ethylene copolymer component C of ethylene and an olefin comonomer, having a higher molecular weight Mn than the ethylene copolymer component B and having a molar comonomer content CC and a density DC.
The amounts of A, B and C are based on the total weight of the ethylene polymer. The ethylene copolymer has a comonomer content of 0.10 to 3.00 mol % and the difference between CB and CC is at most 0.10 mol %.

公开(公告)号：US12180309B2

公开(公告)日：2024-12-31

申请号：US17622232

申请日：2020-06-23

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Francisco Perez Valencia ,  Coen Hendriksen

IPC: C08L23/06 ,  C08F10/02 ,  C08F210/16 ,  C08F110/02 ,  C08L23/08

Abstract: The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein—the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value η100 of at most 1500 Pa·s and a strain hardening as determined according to ISO18488 of at least 25 MPa, for example 30 to 40 MPa,—the amount of the low molecular weight component with respect to the total ethylene polymer is at least 60 wt %,—the low molecular weight component has a Mw of 10,000 to 50,000 g/mol, a ratio of Mw/Mn of 2.5 to 4.5 and a density of 965 to 985 kg/m3 and—the high molecular weight component has a Mw of 100,000 to 1,000,000, a ratio of Mw/Mn of 2.5 to 4.0 and a density of 920 to 950 kg/m3.

公开(公告)号：US20240279447A1

公开(公告)日：2024-08-22

申请号：US18569892

申请日：2022-06-14

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Francisco Perez Valencia ,  Mark Johannes Boerakker ,  Shaneesh Vadake Kulangara

IPC: C08L23/06 ,  C08F2/18 ,  C08F4/02 ,  C08F210/16

CPC classification number: C08L23/06 ,  C08F2/18 ,  C08F4/022 ,  C08F210/16 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2314/02

Abstract: An ethylene copolymer includes or consists of 55 to 80 wt % of an ethylene homopolymer component A and 20 to 45 wt % of an ethylene copolymer component B of ethylene and an olefin comonomer, wherein the component A has a melt flow index as measured according to ISO1133-1:2011 at 190° C., 1.2 kg of 80 to 400 dg/min and a density of at least 968 kg/m3, and the ethylene copolymer has a melt flow index as measured according to ISO1133-1:2011 at 190° C., 5 kg of 0.05 to 0.3 dg/min, a density of 956 to 962 kg/m3, a comonomer content of 0.03 to 0.30 mol %, a viscosity value η0.05 at a temperature of 190° C. and a shear rate of 0.05 rad/s of 200 to 1000 kPa·s and a viscosity value η300 at a temperature of 190° C. and a shear rate of 300 rad/s of 700 to 1500 Pa·s.