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1. 发明申请

US20220356274A1 CATALYSTS 有权
公开(公告)号：US20220356274A1
公开(公告)日：2022-11-10
申请号：US17763283
申请日：2020-09-25
申请人： BOREALIS AG
发明人： Luigi Maria Cristoforo RESCONI , Simon SCHWARZENBERGER , Ville VIRKKUNEN , Alexander REZNICHENKO , Vyatcheslav V. IZMER , Dmitry S. KONONOVICH , Alexander Z. VOSKOBOYNIKOV
IPC分类号： C08F4/649 , C08F4/02 , C08F10/06 , C07F17/00
摘要： A metallocene complex of formula (I): each X is a sigma-ligand; in the group R2Si— at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and phenyl; each R1 independently is the same or can be different and are a CH2—R7 group, with R7 being H or linear or branched C1-6-alkyl group, C3-8 cycloalkyl group, or C6-10 aryl group; each R2 is independently a —CH═, —CY═, —CH2—, —CHY— or —CY2— group, wherein Y is a C1-6 hydrocarbyl group and where n is 2-6; each R3 and R4 are independently the same or can be different and are hydrogen, a linear or branched C1-6-alkyl group, a C7-20 arylalkyl, C7-20 alkylaryl group, C6-20 aryl group, or an —OY group, wherein Y is a is a C1-6 hydrocarbyl group; R5 is a linear or branched C1-6-alkyl group, C7-20 arylalkyl, C7-20 alkylaryl group or C6-20-aryl group; and R6 is a C(R8)3 group, with R8 being a linear or branched C1-6 alkyl group; (A) wherein at least one R3 per phenyl group and at least one R4 is not hydrogen, and wherein at least one R3 per phenyl group and at least one R4 is hydrogen; or (B) wherein one R3 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4 position of each phenyl group and the two other R3 groups are tert-butyl groups; and/or (C) wherein one R4 is an —OY group, wherein Y is a is a C1-6 hydrocarbyl group, in 4-position of the phenyl ring and the two other R4 groups are tert-butyl groups.

2. 发明申请

US20220073718A1 RANDOM PROPYLENE POLYMER COMPOSITION AND USE IN EXTRUSION BLOW MOULDING 有权
公开(公告)号：US20220073718A1
公开(公告)日：2022-03-10
申请号：US17423407
申请日：2020-01-15
申请人： BOREALIS AG
发明人： Jingbo WANG , Markus GAHLEITNER , Friedrich BERGER , Karlheinz FRIEDRICH
IPC分类号： C08L23/14 , C08F2/00 , C08F210/02 , C08F210/14 , C08F4/646 , C08F4/649 , C08F4/654 , B29C49/04
摘要： The present invention is directed to a propylene polymer composition comprising at least one propylene copolymer (C-PP), and an α-nucleating agent (NU), wherein the propylene copolymer (C-PP) comprises two propylene copolymer fractions (PP1) and (PP2), wherein propylene copolymer fraction (PP1) is contained in the propylene copolymer (C-PP) in an amount of 30 to 70 wt. % and the propylene copolymer fraction (PP2) is contained in the propylene copolymer (C-PP) in an amount of 70 to 30 wt. %, the comonomer content of propylene copolymer fraction (PP1) is in the range of 0.5 to 2.5 wt.-% and the comonomer content of the propylene copolymer fraction (PP1) is lower compared to the comonomer content of the propylene copolymer fraction (PP2), and the propylene polymer composition has (a) a melt flow rate MFR2 (230° C.) measured according to according to ISO 1133 of 1 to 5 g/10 min., and (b) a comonomer content of 4.0 to 8.0 wt. %, the comonomer(s) being ethylene and/or at least one C4 to C12 α-olefin. The above propylene polymer composition has improved impact and optical properties. The invention further provides a method of producing the above propylene polymer composition and an extrusion blow molded article comprising the above propylene polymer composition.

3. 发明授权

US11142599B2 Ethylene copolymer having enhanced film properties 有权
公开(公告)号：US11142599B2
公开(公告)日：2021-10-12
申请号：US16862725
申请日：2020-04-30
申请人： NOVA Chemicals (International) S.A.
发明人： Patrick Lam , Victoria Ker , Mark Kelly
IPC分类号： C08F210/16 , C08J5/18 , C08F2/34 , C08F4/642 , C08F4/649 , C08F4/659
摘要： The disclosure provides an ethylene copolymer having a density of from 0.912 g/cm3 to 0.925 g/cm3, a melt flow ratio (I21/I2) of from 20 to 30, and a normal comonomer distribution profile in a GPC-FTIR analysis, wherein the normal comonomer distribution profile has a slope of from −3.5 to −7.5, where the slope is defined as the number of short chain branches per 1000 carbons at a molecular weight of 300,000 minus the number of short chain branches per 1000 carbons at a molecular weight of 30,000. The ethylene copolymers have improved bulk density and when made into film, provide good physical properties.

4. 发明授权

US10961334B2 Polymer composition and a process for production of the polymer composition 有权
公开(公告)号：US10961334B2
公开(公告)日：2021-03-30
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 , C08F4/649 , C08F4/655 , C08F4/659 , C08L23/08 , C08L23/04
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.

5. 发明申请

US20210061930A1 Method For Preparing Polyolefin Using Supported Hybrid Metallocene Catalyst 有权
公开(公告)号：US20210061930A1
公开(公告)日：2021-03-04
申请号：US16957925
申请日：2019-01-09
申请人： LG Chem, Ltd.
发明人： Bog Ki Hong , Jin Young Park , Si Jung Lee , Yi Young Choi , Soung Hun Yoo , Sunghyun Park , Chang Woan Han , Sun Mi Kim
IPC分类号： C08F110/02 , C08L23/28 , C08L27/06 , C08F2/30 , C08F8/22 , C08F4/52 , C08F4/642 , C08F4/649 , C08F4/659 , C08F4/6592
摘要： The present disclosure relates to a method for preparing a polyolefin using a supported hybrid metallocene catalyst. According to the present disclosure, a polyolefin having a narrow molecular weight distribution can be prepared very effectively by introducing a cocatalyst in an optimum conent in the presence of a supported hybrid metallocene catalyst containing two or more metallocene compounds having a specific chemical structure. The polyolefin prepared according to the present disclosure exhibits excellent uniformity in chlorine distribution in polyolefin during chlorination, thereby significantly improving elongation of the chlorinated polyolefin, compatibility with PVC and impact reinforcing performance. Thus, it exhibits excellent chemical resistance, weather resistance, flame retardancy, processability and impact strength reinforcing effect, and can be suitably applied as an impact reinforcing agent for PVC pipes and window profiles.

6. 发明申请

US20210032449A1 Polyethylene Copolymer and Method for Preparing Same 有权
公开(公告)号：US20210032449A1
公开(公告)日：2021-02-04
申请号：US16635239
申请日：2018-12-06
申请人： LG Chem, Ltd.
发明人： Jongsang Park , Ki Soo Lee , Eun Kyoung Song , Daesik Hong , Ye Jin Lee , Joongsoo Kim , Eunyoung Shin , Youngsuk You , Jinyoung Kwak
IPC分类号： C08L23/08 , C08F210/02 , C08F210/04 , C08F210/14 , C08F210/16 , C08F4/649 , C08F4/6592
摘要： The present invention relates to a polyethylene copolymer which has excellent processability and long-term durability, and thus is useful for hollow molding of a pipe or the like.

7. 发明申请

US20210024729A1 Ethylene/Alpha-Olefin Copolymer and Method for Preparing the Same 有权
公开(公告)号：US20210024729A1
公开(公告)日：2021-01-28
申请号：US16975480
申请日：2019-05-03
申请人： LG CHEM, LTD.
发明人： Jung Ho JUN , Seung Hwan JUNG , Jin Sam GONG , Rae Keun GWAK , Choong Hoon LEE , Eun Jung LEE , Hyun Jin JU , In Sung PARK , Sang Eun PARK
IPC分类号： C08L23/08 , C08F210/02 , C08F210/08 , C08F210/16 , C08F2/38 , C08F4/649 , C08F4/6592
摘要： The present invention provides an ethylene/alpha-olefin copolymer having narrow molecular weight distribution together with a low density and an ultra low molecular weight, minimized number of unsaturated functional groups, and particularly a small amount of vinylidene among the unsaturated functional groups to show excellent physical properties, and a method for preparing the same.

8. 发明授权

US10889663B2 Asymmetric ANSA-metallocene catalyst compounds for producing polyolefins having a broad molecular weight distribution 有权
公开(公告)号：US10889663B2
公开(公告)日：2021-01-12
申请号：US16192493
申请日：2018-11-15
申请人： ExxonMobil Chemical Patents Inc.
发明人： Jian Yang , John R. Hagadorn , Gregory J. Karahalis , Timothy M. Boller , Evan J. Morris , Yan Jiang , Patrick Brant
IPC分类号： C07F17/00 , C08F4/6592 , C08F210/16 , C08F4/649 , C08F210/02 , C08F210/14 , C08F4/659 , C08J5/18 , C08F2/34
摘要： The present disclosure relates to asymmetric ansa-metallocene catalyst compounds that include at least one indenyl ligand substituted at the 3-position with a C3-C40 α-branched alkyl, such as 1-methylethyl, 1-methylpropyl, 1-methylbutyl, 1-ethylbutyl, 1,3-dimethylbutyl, 1-methyl-1-ethylbutyl, 1,1-diethylbutyl, 1-propylpentyl, and the like. Catalyst systems prepared with the catalyst compounds, polymerization methods using such catalyst systems, and polyolefins made using the polymerization methods are also described.

9. 发明授权

US10882934B2 Propylene-butylene copolymers with improved mechanical and optical properties and better processability as well as articles made therefrom 有权
公开(公告)号：US10882934B2
公开(公告)日：2021-01-05
申请号：US16304898
申请日：2017-06-12
申请人： Borealis AG
发明人： Jingbo Wang , Wilfried Töltsch , Elisabeth Potter , Markus Gahleitner
IPC分类号： C08F210/06 , C08F4/654 , C08F210/08 , C08F4/649
摘要： The present invention relates to nucleated propylene-butylene copolymers comprising propylene and butylene monomer units, wherein the nucleated propylene-butylene copolymer has improved stiffness, better impact behaviour and optical properties such as low haze and improved optomechanical ability.

10. 发明授权

US10829624B2 Polypropylene composition with improved heat resistance 有权
公开(公告)号：US10829624B2
公开(公告)日：2020-11-10
申请号：US16303341
申请日：2017-06-02
申请人： BOREALIS AG
发明人： Jingbo Wang , Markus Gahleitner , Petar Doshev , Georg Grestenberger
IPC分类号： C08L23/12 , C08F110/06 , C08F4/649 , C08F4/651
摘要： The present invention is directed to a polypropylene composition, said polypropylene composition comprising two different polypropylene fractions (PP1) and (PP2), wherein the first polypropylene (PP1) has a weight molecular weight Mw in the range of above 45 kg/mol to below 65 kg/mol and a melting temperature of at least 140° C.

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