公开(公告)号：US20220177679A1

公开(公告)日：2022-06-09

申请号：US17598572

申请日：2020-03-27

Applicant: BOREALIS AG

Inventor： Susanne Kahlen ,  Hermann Braun ,  Yi Liu ,  Markus Gahleitner ,  Gerhard Hubner

IPC: C08L23/06 ,  C08J11/04 ,  C08L23/12

Abstract: The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

公开(公告)号：US11254809B2

公开(公告)日：2022-02-22

申请号：US16497511

申请日：2018-06-13

Applicant: Borealis AG

Inventor： Yi Liu ,  Qizheng Dou

IPC: C08L23/16 ,  C08L23/06

Abstract: A polymer composition comprising a base resin is disclosed herein. The base resin includes a very high molecular weight polyethylene component, a low molecular weight polyethylene component having a weight average molecular weight lower than a weight average molecular weight of the very high molecular weight component and a high molecular weight component having a weight average molecular weight higher than the weight average molecular weight of the low molecular weight component, but lower than the weight average molecular weight of the very high molecular weight component. The composition has a complex viscosity at 0.05 rad/s Eta0.05 rad/s of equal to or more than 800 kPa·s, a viscosity at a shear stress of 747 Pa (eta747) of equal to or less than 34000 kPas and a melt flow rate MFR5 of equal to or less than 0.17 g/10 min.

公开(公告)号：US20220010046A1

公开(公告)日：2022-01-13

申请号：US17288804

申请日：2019-10-23

Applicant: BOREALIS AG

Inventor： Yi Liu ,  Qizheng Dou ,  Victor Sumerin ,  Markku Vahteri ,  Thomas Hjertberg ,  Girish Suresh Gali ,  Alexandra Romina Albunia

IPC: C08F210/16 ,  C08F2/00 ,  C08L23/08

Abstract: The present invention relates to a polyethylene composition comprising a base resin having a density of from 950.0 kg/m3 to 962.0 kg/m3, determined according to ISO 1183, wherein the polyethylene composition has a melt flow rate MFR21 (190° C., 21.16 kg), of from 1.0 to 9.0 g/10 min, determined according to ISO 1133 and a viscosity at a constant shear stress of 747 Pa eta747 of from 3500 kPa #s to 20000 kPa #s, a polyethylene composition obtainable by a multi-stage process, a process for producing said polyethylene composition, an article, such as a pipe or pipe fitting, comprising said polyethylene composition and the use of said polyethylene composition for the production of an article, such as a pipe or pipe fitting.

公开(公告)号：US20190256695A1

公开(公告)日：2019-08-22

申请号：US16307593

申请日：2017-06-20

Applicant: BOREALIS AG

Inventor： Yi Liu ,  Qizheng Dou ,  Victor Sumerin ,  Jani Aho ,  Jarmo Kela ,  Thomas Hjertberg ,  Anna Hjärtfors

IPC: C08L23/08 ,  C08L23/06

Abstract: A polymer composition comprising a base resin is disclosed herein. The base resin includes a first high molecular weight component, a low molecular weight component and a second high molecular weight component. The weight average molecular weight of the second high molecular weight component differs from the first high molecular weight component. The ratio of the weight and number average molecular weight of the first high molecular weight component is greater than 5. The first high molecular weight component has a density of equal or less than 930 kg/m3, and an intrinsic viscosity of equal or less than 15 dl/g, The base resin has a melt flow rate MFR5 of equal or less than 0.40 g/10 min and the composition has a viscosity at a shear stress of 747 Pa (eta747) of more than 700 kPas. Also a process for the production of a polymer composition is disclosed herein.

公开(公告)号：US09920190B2

公开(公告)日：2018-03-20

申请号：US15323915

申请日：2015-07-06

Applicant: BOREALIS AG

Inventor： Yi Liu ,  Alexandra Romina Albunia ,  Tanja Piel ,  Qizheng Dou ,  Hermann Prokschi

IPC: C08L23/06 ,  C08F110/02 ,  B29C47/88 ,  B29C47/00 ,  B29K23/00 ,  B29L23/00

CPC classification number: C08L23/06 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/882 ,  B29K2023/065 ,  B29K2023/0683 ,  B29L2023/22 ,  C08F110/02 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/11 ,  C08F2500/17 ,  C08L23/0815 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/068 ,  C08L2207/07 ,  C08L2308/00

Abstract: The present invention relates to a multimodal polyethylene composition which can be manufactured into pipes showing improved pressure resistance comprising a high density multimodal ethylene polymer component (A) having a density of at least 930 kg/m3, and a MFR21 of not more than 15 g/10 min, wherein said composition exhibits a LAOS-NLF defined as L ⁢ ⁢ A ⁢ ⁢ O ⁢ ⁢ S - N ⁢ ⁢ L ⁢ ⁢ F =  G 1 ′ G 3 ′  where G1′—first order Fourier Coefficient G3′—third order Fourier Coefficient of at least 1.7. Such a polyethylene composition is useful for the manufacture of pressure pipes that exhibit improved pressure resistance and creep resistance and do not undergo sagging. Further disclosed is a process for the production of a pipe using such a multimodal polyethylene composition and a pipe comprising such a multimodal polyethylene composition.

公开(公告)号：US20160340449A1

公开(公告)日：2016-11-24

申请号：US15021113

申请日：2015-02-06

Applicant: BOREALIS AG

Inventor： Thomas Hjertberg ,  Alexandra Romina Albunia ,  Yi Liu ,  Qizheng Dou

IPC: C08F10/02 ,  C08L23/06

CPC classification number: C08F10/02 ,  C08L23/06 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2207/068 ,  C08L2314/02 ,  C08F4/6555 ,  C08F4/025 ,  C08F110/02 ,  C08F2500/17 ,  C08F2500/01 ,  C08F210/16 ,  C08F210/14

Abstract: Disentangled high or ultrahigh molecular weight polyethylene ((U)HMWPE) being produced with a Ziegler-Natta catalyst, characterized by (i) a factor for the normalized elastic modulus G′0/G′P of less than 0.95 determined in a dynamic time sweep measurement at 180° C. with constant strain of 0.5% at fixed frequency of 10 rad/s for at least 3600 s, whereby G′0 is the elastic shear modulus measured at t0 directly after melting the sample and G′p is the maximum plateau modulus.

Abstract translation: 使用齐格勒 - 纳塔催化剂生产分离的高分子量或超高分子量聚乙烯（（U）HMWPE），其特征在于：（i）归一化弹性模量G'0 / G'P的因子在动态时间内确定小于0.95 在180°C的扫描测量，固定频率为10弧度/秒的固定应变为0.5％至少3600秒，由此G'0是直接在熔化样品后在t0测量的弹性剪切模量，G'p是 最大平稳模量。

公开(公告)号：US20240384075A1

公开(公告)日：2024-11-21

申请号：US18687552

申请日：2022-08-23

Applicant: Borealis AG

Inventor： Yi Liu ,  Paul Johann Freudenthaler ,  Jörg Fischer ,  Reinhold W. Lang

IPC: C08L23/06

Abstract: Provided is a polyolefin composition including a) 20-80 wt % (based on the total weight of the polyolefin composition) of at least one bimodal polyethylene including a polyethylene homopolymer and a polyethylene copolymer formed from ethylene and at least one olefin with at least 6 carbon atoms as comonomer with a melt flow rate MFR5 (190° C., 5 kg, measured according to ISO 1133) of at least 0.1 g/10 min b) 80-20 wt % (based on the total weight of the polyolefin composition) of a polyethylene enriched blend of recycled plastic material including polyethylene and polypropylene with a melt enthalpy ratio of PP:PE in the range of 0:100 to 10:90, which is recovered from a waste plastic material derived from post-consumer and/or post-industrial waste, with a melt flow rate MFR5 (190° C., 5 kg, measured according to ISO 1133) of at least 0.8 g/10 min.

公开(公告)号：US11685825B2

公开(公告)日：2023-06-27

申请号：US16499352

申请日：2018-04-06

Applicant: Borealis AG

Inventor： Anna Hjärtfors ,  Yi Liu ,  Joseph Thorman ,  Victor Sumerin

IPC: C08F210/16 ,  C08L23/08 ,  G02B6/44 ,  H01B3/44

CPC classification number: C08L23/0815 ,  C08F210/16 ,  G02B6/443 ,  H01B3/441 ,  C08L2310/00

Abstract: The present invention relates to a cable jacket composition comprising a multimodal olefin copolymer, said copolymer having density of 0.935-0.960 g/cm3 and MFR2 of 2.2-10.0 g/10 min and said composition having ESCR of at least 2000 hours and a cable shrinkage of 0.70% or lower. The invention further relates to the process for preparing said composition and its use as outer jacket layer for a cable, preferably a communication cable, most preferably a fiber optic cable.

公开(公告)号：US20230114045A1

公开(公告)日：2023-04-13

申请号：US17785264

申请日：2020-12-10

Applicant: Borealis AG

Inventor： Yi Liu ,  Susanne Kahlen ,  Hermann Braun ,  Elisabeth Ribarits ,  Christian Goetzloff ,  Gerhard Hubner ,  Ruth Dammert ,  Sanna Ronkainen ,  Andreas Rössler-Czermak ,  Jari Äärilä

IPC: C08L23/06

Abstract: The present invention relates to a mixed-plastic-polyethylene composition comprising: —a total amount of ethylene units (C2 units) of from 90.00 to 99.00 wt %, and—a total amount of continuous units having 3 carbon atoms corresponding to polypropylene (continuous C3 units) of from 0.01 to 5.00 wt %, with the total amounts of C2 units and continuous C3 units being based on the total weight amount of monomer units in the composition and measured according to quantitative 13C{1H} NMR measurement, and wherein the composition has—a melt flow rate (ISO 1133, 2.16 kg, 190° C.) of from 0.1 to 2.0 g/10 min; and—a density of from 930 kg/m3 to 955 kg/m3, preferably from 932 to 953 kg/m3, a process for producing said mixed-plastic-polyethylene composition, an article comprising said mixed-plastic-polyethylene composition and the use of said mixed-plastic-polyethylene composition for producing a cable layer.

公开(公告)号：US20210317290A1

公开(公告)日：2021-10-14

申请号：US17287579

申请日：2019-10-22

Applicant: BOREALIS AG

Inventor： Yi Liu ,  Victor Sumerin ,  Qizheng Dou

IPC: C08L23/08 ,  C08F210/16 ,  C08F2/00 ,  C08F4/02

Abstract: The present invention relates to a polyethylene composition comprising a base resin having a density of from 952.0 kg/m3 to 960.0 kg/m3, determined according to ISO 1183, wherein the polyethylene composition has a melt flow rate MFR21 (190° C., 21.16 kg), of from 1.0 to 7.5 g/10 min, determined according to ISO 1133, a complex viscosity at a frequency of 0.05 rad/s eta0.05 of from 750 kPa #s to 1900 kPa #s, determined according to ISO 6721-1 and ISO 6721-10, and a white spot rating of not more than 12.0, determined according to ISO 18553, a polyethylene composition obtainable by a multi-stage process, a process for producing said polyethylene composition, an article, such as a pipe or pipe fitting, comprising said polyethylene composition and the use of said polyethylene composition for the production of an article.