公开(公告)号：US20220356330A1

公开(公告)日：2022-11-10

申请号：US17635892

申请日：2020-08-04

申请人： Borealis AG

发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

IPC分类号： C08L23/12 ,  C08L23/06

摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin polypropylene homopolymer. Also disclosed are a process for manufacturing the polymer composition, a process for improving mechanical properties of a polymer blend A) by incorporating B) into A) and articles made from the resulting polymer composition.

公开(公告)号：US20220306844A1

公开(公告)日：2022-09-29

申请号：US17635838

申请日：2020-08-04

申请人： Borealis AG

发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

IPC分类号： C08L23/06 ,  C08L23/12

摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin random polypropylene copolymer wherein the weight proportions of components A) and B) add up to 100 wt.-%. Also disclosed are a process for manufacturing the polymer composition to the use of component B) for improving mechanical properties of polymer blends A) and to articles comprising the polymer composition.

公开(公告)号：US20170362417A1

公开(公告)日：2017-12-21

申请号：US15539130

申请日：2015-12-21

申请人： BOREALIS AG

发明人： Yi LIU ,  Qizheng DOU ,  Alexandra Romina ALBUNIA

IPC分类号： C08L23/06 ,  C08F10/02 ,  C08L23/08 ,  C08F2/00 ,  B29B9/12

摘要： The present application relates to a process for producing a multimodal polyethylene composition comprising the steps of polymerizing a polyethylene fraction (A-1) having a weight average molecular weight Mw of equal to or more than 500 kg/mol to equal to or less than 10,000 kg/mol and a density of equal to or more than 915 kg/m3 to equal to or less than 960 kg/m3 in one reaction step and polymerizing a polyethylene fraction (A-2) having a lower weight average molecular weight Mw as polyethylene fraction (A-1) and a density of equal to or more than 910 kg/m3 to equal to or less than 975 kg/m3 in a second reaction step of a sequential multistage process wherein one of said polyethylene fractions is polymerized in the presence of the other of said polyethylene fractions to form a first polyethylene resin (A) having a weight average molecular weight Mw of equal to or more than 150 kg/mol to equal to or less than 1,500 kg/mol, and a density of equal to or more than 910 kg/m3 to equal to or less than 975 kg/m3, wherein the weight average molecular weight Mw of the first polyethylene resin (A) is lower than the weight average molecular weight Mw of the polyethylene fraction (A-1), blending the first polyethylene resin (A) with a second polyethylene resin (B) having a weight average molecular weight Mw of equal to or more than 50 kg/mol to less than 500 kg/mol, and a density of equal to or more than 910 kg/m3 to equal to or less than 970 kg/m3 to form said multimodal polyethylene composition, wherein the multimodal polyethylene composition a melt flow rate MFR5 (190° C., 5 kg) of 0.01 to 10 g/10 min and a density of equal to or more than 910 kg/m3 to equal to or less than 970 kg/m3 a polyethylene composition obtainable by said process and the polyethylene resin of said first polymerization step.

公开(公告)号：US20160347939A1

公开(公告)日：2016-12-01

申请号：US14912571

申请日：2015-02-06

申请人： BOREALIS AG

发明人： Qizheng DOU ,  Alexandra Romina ALBNUNIA ,  Yi LIU

IPC分类号： C08L23/06 ,  C08J3/00

CPC分类号： C08L23/06 ,  C08J3/005 ,  C08J2323/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08L23/04 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/068 ,  C08L23/0815

摘要： High density polyethylene blend, comprising (A) 55 to 99 wt % of a high density multimodal polyethylene component having a density of at least 930 kg/m3, and (B) 1 to 45 wt % of an ultra-high molecular weight polyethylene homo- or copolymer component having (i) an intrinsic viscosity of at least 15.0 dl/g (ii) an a nominal viscosity molecular weight (Mv) of at least 2.0*106 g/mol and (iii) a molecular weight of (Mw) of at least 0.7*106 g/mol, and wherein said blend has an MFR21 of 0.05 to 10.0 g/10 min and a density of at least 925 kg/m3.

摘要翻译： 高密度聚乙烯共混物，包含（A）55至99重量％的密度为至少930kg / m 3的高密度多峰聚乙烯组分，和（B）1至45重量％的超高分子量聚乙烯均聚物 - 或共聚物组分，其特征粘度至少为15.0dl / g（ii）标称粘度分子量（Mv）至少为2.0×10 6 g / mol，（iii）分子量为（Mw） 至少为0.7×10 6 g / mol，并且其中所述共混物具有0.05至10.0g / 10min的MFR 21和至少925kg / m 3的密度。

公开(公告)号：US20190292283A1

公开(公告)日：2019-09-26

申请号：US16306296

申请日：2017-05-29

申请人： BOREALIS AG

发明人： Yi LIU ,  Victor SUMERIN ,  Ravindra TUPE

IPC分类号： C08F210/16 ,  C08F4/655 ,  C08F4/649 ,  C08F4/659 ,  C08L23/08

摘要： A polyethylene composition comprising a base resin is disclosed herein. The base resin includes an ethylene homo- or copolymer fraction (A1), and an ethylene homo- or copolymer fraction (A2). Fraction (A1) has a lower weight average molecular weight than fraction (A2). The base resin has a melt flow rate MFR21 of equal to or less than 8.0 g/10 min and a density of 930 to 950 kg/m3. The polyethylene composition has a melt flow rate MFR5 of 0.01 to 0.3 g/10 min, a flow rate ratio FRR21/5 of equal to or more than 20 and a ratio of the weight average molecular weight and the number average molecular weight (Mw/Mn) of equal to or less than 30. Also the polyethylene composition has a tensile modulus of less than 1000 MPa. Also a process for the production of a polyethylene composition comprising polyethylene base resin is disclosed herein.

公开(公告)号：US20170349678A1

公开(公告)日：2017-12-07

申请号：US15539125

申请日：2015-12-21

申请人： BOREALIS AG

发明人： Bernd KRETZSCHMAR ,  Carl-Gustaf EK ,  Thomas RÄTZSCH ,  Yi LIU ,  Sandeep TYAGI

IPC分类号： C08F10/02 ,  C08L23/06 ,  C08F2/00

摘要： The present application relates to a process for producing a multimodal polyethylene composition comprising the steps of blending a polyethylene fraction (A-1) having a weight average molecular weight Mw of equal to or more than 700 kg/mol to equal to or less than 10,000 kg/mol and a density of equal to or more than 920 kg/m3 to equal to or less than 960 kg/m3 and a polyethylene fraction (A-2) having a lower Mw as polyethylene fraction (A-1) and a density of equal to or more than 910 kg/m3 to equal to or less than 960 kg/m3 with a weight ratio of (A-1) to (A-2) of 45:55 to 80:20 to form a first polyethylene resin (A) having a Mw of equal to or more than 200 kg/mol to equal to or less than 1500 kg/mol, a melt flow rate MFR5 (190° C., 5 kg) of 0.001 to 10 g/10 min and a density of equal to or more than 910 kg/m3 to equal to or less than 960 kg/m3, blending the first polyethylene resin (A) with a second polyethylene resin (B) having a Mw of equal to or more than 50 kg/mol to less than 700 kg/mol, and a density of equal to or more than 910 kg/m3 to equal to or less than 960 kg/m3 to form the multimodal polyethylene composition, wherein the multimodal polyethylene composition a melt flow rate MFR5 (190° C., 5 kg) of 0.01 to 10 g/10 min and a density of equal to or more than 910 kg/m3 to equal to or less than 970 kg/m3, a polyethylene composition obtainable by said process and the polyethylene resin of said first blending step.

公开(公告)号：US20170152376A1

公开(公告)日：2017-06-01

申请号：US15323915

申请日：2015-07-06

申请人： BOREALIS AG

发明人： Yi LIU ,  Alexandra Romina ALBUNIA ,  Tanja PIEL ,  Qizheng DOU ,  Hermann PROKSCHI

IPC分类号： C08L23/06 ,  B29C47/88 ,  B29C47/00 ,  C08F110/02

CPC分类号： 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

摘要： 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：US20160280821A1

公开(公告)日：2016-09-29

申请号：US15032999

申请日：2014-12-12

申请人： BOREALIS AG

发明人： Yi LIU ,  John JAMIESON ,  Ravindra TUPE ,  Jarmo KELA

IPC分类号： C08F210/16 ,  C08J5/18 ,  C08L23/08

CPC分类号： C08F210/16 ,  C08F2/001 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2205/03 ,  C08F210/08 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/26 ,  C08F2500/08 ,  C08F4/025 ,  C08F4/6492 ,  C08F4/6555

摘要： The present invention is a process for producing copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low content of extractable material and can be extruded to films which can be used in food contact applications.

摘要翻译： 本发明是在三个聚合阶段中制备乙烯和具有4-10个碳原子的α-烯烃的共聚物的方法，其中在两个阶段中制备低分子量共聚物的乙烯和一种高分子量共聚物 阶段 所得共聚物的可萃取材料含量低，可以挤出成可用于食品接触应用的薄膜。

公开(公告)号：US20160369091A1

公开(公告)日：2016-12-22

申请号：US14901948

申请日：2014-09-24

申请人： BOREALIS AG

发明人： Thomas HJERTBERG ,  Ravindra TUPE ,  Undo WAHNER ,  Tanja Piel ,  Yi LIU ,  Romina Alexandra ALBUNIA ,  Floran PRADES ,  Joseph THORMAN ,  Dusan JEREMIC

IPC分类号： C08L23/08

CPC分类号： C08L23/0815 ,  C08F2/001 ,  C08L2205/02 ,  C08L2205/03 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/07 ,  C08F2500/12

摘要： A process for polymerizing ethylene in the presence of a polymerization catalyst by copolymerizing ethylene with a comonomer selected from the group of C4-C10 alpha-olefins in three polymerization stages. The polymers produced in the three stages have different melt flow rates. The polymer composition produced by the process has good mechanical properties and can be used for making pipes. The process has a good productivity and provides a stable and economic operation.

摘要翻译： 在聚合催化剂存在下，通过在三个聚合阶段使乙烯与选自C 4 -C 10α-烯烃的共聚单体共聚来制备乙烯的方法。 在三个阶段中生产的聚合物具有不同的熔体流动速率。 该方法生产的聚合物组合物具有良好的机械性能，可用于制造管材。 该过程具有良好的生产力，并提供稳定和经济的运作。

公开(公告)号：US20220289955A1

公开(公告)日：2022-09-15

申请号：US17635764

申请日：2020-08-04

申请人： Borealis AG

发明人： Susanne Margarete KAHLEN ,  Hermann BRAUN ,  Yi LIU ,  Meta CIGON ,  Philip KNAPEN

IPC分类号： C08L23/12 ,  C08L23/06

摘要： Disclosed is a polymer composition comprising at least the following components A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material; B) 25 to 80 wt.-% based on the overall weight of the polymer composition of a virgin heterophasic polypropylene block copolymer; wherein that the weight proportions of A) and B) add up to 100 wt.-%. Also disclosed are a process for manufacturing the polymer composition and articles comprising the polymer composition.