公开(公告)号：US11926684B2

公开(公告)日：2024-03-12

申请号：US16973610

申请日：2019-06-13

申请人： Dow Global Technologies LLC

发明人： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Vivek Kalihari ,  Hrishikesh R. Munj ,  Jon W. Hobson ,  Rajen M. Patel

IPC分类号： C08F210/16 ,  C08J5/18

CPC分类号： C08F210/16 ,  C08J5/18 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/19 ,  C08F2500/34 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2323/12

摘要： A cast film inducing a bimodal ethylene-based polymer having a high density fraction (HDF) from 3.0% to 10.0%, an I10/I2 ratio from 5.5 to 7.0, a short chain branching distribution (SCBD) less than or equal to 10° C., a density from 0.910 g/cc to 0.920 g/cc, and a melt index (I2) from 1.0 g/10 mins to 8.0 g/10 mins.

公开(公告)号：US11912838B2

公开(公告)日：2024-02-27

申请号：US17292880

申请日：2019-11-26

申请人： ABU DHABI POLYMERS CO. LTD. (BOROUGE) L.L.C ,  BOREALIS AG

发明人： Subrata Das Kumar ,  Ashish Kumar ,  Shawn Khoo ,  Raghvendra Singh ,  Niraj Dixit

IPC分类号： C08F110/02 ,  C08F210/02 ,  C08J5/18 ,  C08F297/08 ,  C08L23/06 ,  C08L23/08 ,  C08F210/08 ,  C08F210/16

CPC分类号： C08J5/18 ,  C08F110/02 ,  C08F210/02 ,  C08F210/08 ,  C08F210/16 ,  C08F297/083 ,  C08L23/06 ,  C08L23/0815 ,  C08J2353/00 ,  C08F110/02 ,  C08F210/02 ,  C08F2500/04 ,  C08F2500/05

摘要： The present invention relates to a polyethylene composition comprising a base resin comprising a low molecular weight ethylene polymer component and a high molecular weight ethylene polymer component, wherein the high molecular weight ethylene polymer component has a higher weight average molecular weight than the low molecular weight ethylene polymer component, wherein the base resin has a density of at least 958.0 kg/m3, and the polyethylene composition a melt flow rate MFR2 (190° C., 2.16 kg) of from 0.50 to 0.80 g/10 min and a molecular weight distribution being the ratio of the weight average molecular weight and the number average molecular weight, Mw/Mn, of from 10.0 to 15.0, a process for producing said polyethylene composition, an article comprising said polyethylene composition and the use of said polyethylene composition for the production of a film.

公开(公告)号：US20230331884A1

公开(公告)日：2023-10-19

申请号：US17796539

申请日：2021-03-15

申请人： ARLANXEO NETHERLANDS B.V.

发明人： Raffaele BERNARDO ,  Gerardus VAN DOREMAELE ,  Wouter VAN MEERENDONK ,  Peter WINDMULLER

IPC分类号： C08F210/18

CPC分类号： C08F210/18 ,  C08F2420/04 ,  C08F2500/05

摘要： A copolymer comprising repeating units derived from ethylene, at least one C3-C20-α-olefin, at least one non-conjugated diene, and at least one dual polymerizable diene, wherein the copolymer has



(i) an intensity ratio D of ≤0.5 and
(ii) a molecular weight distribution (MWD)≥R, wherein R depends on the branching index g′(III) of the copolymer and
wherein R is −27.7 times g′(III)+29.2, when g′(III) is ≤0.90; and R is 4.3 when g′(III) is >0.90 and up to 0.99.




Also provided is a catalyst composition for making such copolymers containing at least two different metal complexes, a process for making the catalyst composition, a process for making the copolymer and to articles obtained with the copolymer.

公开(公告)号：US11685798B2

公开(公告)日：2023-06-27

申请号：US17260271

申请日：2019-07-18

申请人： Dow Global Technologies LLC

发明人： Peter S. Martin ,  Yijian Lin ,  Angela I. Padilla-Acevedo ,  Roger L. Kuhlman ,  Shadid Askar ,  Mridula Kapur ,  Todd A. Hogan ,  Joel D. Wieliczko ,  Chuan C. He

IPC分类号： C08F210/16 ,  C08F10/02 ,  C08F4/6592

CPC分类号： C08F210/16 ,  C08F4/65922 ,  C08F2500/01 ,  C08F2500/02 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/19

摘要： In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cm3 when measured according to ASTM D792, and a high load melt index (I21) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190° C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (Mp(GPC)) of less than 50,000 g/mol, a number average molecular weight (Mn(GPC)) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.

公开(公告)号：US20180305532A1

公开(公告)日：2018-10-25

申请号：US15491330

申请日：2017-04-19

申请人： NOVA Chemicals (International) S.A.

发明人： Zengrong Zhang ,  Niousha Kazemi ,  Stephen Salomons ,  Monika Kleczek ,  Mehdi Keshtkar ,  Brian Molloy ,  Qinyan Wang ,  Peter Zoricak ,  Charles Carter ,  XiaoChuan Wang ,  Christopher Dobbin ,  Fazle Sibtain ,  Kenneth Taylor ,  Lawrence VanAsseldonk ,  Hamidreza Khakdaman

IPC分类号： C08L23/08 ,  C08J5/18

CPC分类号： C08L23/0815 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/6592 ,  C08F4/65927 ,  C08F210/16 ,  C08F2420/04 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/06 ,  C08J2423/08 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/07 ,  C08L2314/06 ,  C08F2/001 ,  C08F2/06 ,  C08L23/06 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/05 ,  C08F2500/09 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26 ,  C08F2500/04 ,  C08F4/65904 ,  C08F2500/02 ,  C08F2500/06

摘要： A continuous solution polymerization process is disclosed wherein at least two homogeneous catalyst formulations are employed. A first homogeneous catalyst formulation is employed in a first reactor to produce a first ethylene interpolymer and a second homogeneous catalyst formulation is employed in a second reactor to produce a second ethylene interpolymer. Optionally a third ethylene interpolymer is formed in a third reactor. The resulting ethylene interpolymer products possess desirable properties in a variety of end use applications, for example in film applications. A means for increasing the molecular weight of the first ethylene interpolymer is disclosed and/or a means for increasing the temperature of the first reactor, relative to the third homogeneous catalyst formulation. A means for reducing the (α-olefin/ethylene) weight ratio in the first reactor is disclosed and/or reducing the density of the first ethylene interpolymer, relative to the third homogeneous catalyst formulation.

公开(公告)号：US20180258203A1

公开(公告)日：2018-09-13

申请号：US15746965

申请日：2015-08-04

申请人： ExxonMobil Chemical Patents Inc.

发明人： Rohan A. Hule ,  Sudhin Datta ,  Yi Ping Ni

IPC分类号： C08F110/06 ,  C08L23/12

CPC分类号： C08F110/06 ,  C08F2500/05 ,  C08F2500/12 ,  C08F2500/17 ,  C08L23/12 ,  C08L2203/30 ,  C08L2205/025 ,  C08L2205/035

摘要： Bimodal polypropylene compositions and a process to form melt blended bimodal polypropylene compositions comprising combining at least two polypropylenes in at least a two-pass process, and forming a bimodal polypropylene composition having a Flexural Modulus (190° C., 1% secant) of at least 1700 MPa, as well as one or more other selected properties. These compositions are suitable for thermoformed articles and injection molded articles, any of which may be foamed.

公开(公告)号：US20180179366A1

公开(公告)日：2018-06-28

申请号：US15576331

申请日：2016-04-29

申请人： SABIC GLOBAL TECHNOLOGIES B.V.

发明人： Priya Garg ,  Nicolaas Hendrika Friederichs ,  Tom Schoffelen

IPC分类号： C08L23/06 ,  C08L23/08

CPC分类号： C08L23/06 ,  C08L23/0815 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2314/02 ,  F16L9/12 ,  C08F210/16 ,  C08F2/001 ,  C08F4/6555 ,  C08F2/14 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/19 ,  C08F2500/17 ,  C08F2500/05 ,  C08F110/02

摘要： The invention is directed to a multimodal polyethylene having a flow ratio FRR ranging between ≥25 and ≤35, a density ranging between ≥948.0 kg/m3 and ≤953.0 kg/m3, an MFR190/5 ranging between ≥ 0.1 and ≤0.4 g/10 min and comprising from 50-54% by weight of an ethylene homopolymer A and from 46-50% by weight of an ethylene-hexene copolymer B, where all percentages are based on the total weight of the composition and wherein ethylene homopolymer A has a viscosity number ≥110 cm3/g and ≤130 cm3/g and a density between ≥960.0 kg/m3 and ≤969.0 kg/m3. The polyethylene is suitable to be applied in the production of pipes.

公开(公告)号：US09982075B2

公开(公告)日：2018-05-29

申请号：US15307065

申请日：2015-04-28

申请人： ARLANXEO Singapore Pte. Ltd.

发明人： Lorenzo Ferrari ,  Sarah Chadder ,  Patrick Crewdson

IPC分类号： C08L9/00 ,  C08F210/12 ,  C08L23/22 ,  C08F210/10

CPC分类号： C08F210/12 ,  C08F210/10 ,  C08K3/04 ,  C08K3/06 ,  C08K5/09 ,  C08K5/3417 ,  C08K5/40 ,  C08K2003/2296 ,  C08L23/22 ,  C08L2205/025 ,  C08F4/52 ,  C08F236/08 ,  C08F2500/05 ,  C08F2500/17

摘要： A polyisoolefin-based polymer composition having a multimodal molecular weight distribution and a level of unsaturation of greater than about 4 mol % is described, which can be prepared by co-polymerizing 70-96 vol % isoolefin monomer and 30-4 vol % β-pinene or multi-olefin monomer, based on volume of isoolefin monomer and β-pinene or multi-olefin monomer, in a solution comprising 0-30 vol % aliphatic hydrocarbon diluent, based on volume of the solution, and an alkylaluminum halide initiator system. The polyisoolefin-based polymer composition has a multimodal molecular weight distribution having a first molecular weight fraction having a peak molecular weight (Mp) of less than about 300 kg/mol, and a second molecular weight fraction having a peak molecular weight (Mp) of greater than about 1000 kg/mol or at least 3 times greater than the Mp of the first molecular weight fraction.

公开(公告)号：US09963524B2

公开(公告)日：2018-05-08

申请号：US15692106

申请日：2017-08-31

申请人： Dow Global Technologies LLC

发明人： Cornelis F. J. Den Doelder ,  Otto J. Berbee ,  Stefan Hinrichs ,  Teresa P. Karjala

IPC分类号： C08F110/02

CPC分类号： C08F110/02 ,  C08F2500/04 ,  C08F2500/05 ,  C08F2500/12 ,  C08F4/38 ,  C08F2/01 ,  C08F2/38 ,  C08F2/001 ,  C08F10/02 ,  C08F2/00

摘要： The invention provides an ethylene-based polymer comprising the following properties: a) weight fraction (w) of molecular weight above 5*106 g/mol, w>A−B*I2, where A=0.4 wt %, and B is 0.02 wt %/(dg/min), and w D−E*log(I2), where D=162 Pa and E=52 Pa/log(dg/min).

公开(公告)号：US09944780B2

公开(公告)日：2018-04-17

申请号：US15127444

申请日：2015-04-01

申请人： BOREALIS AG

发明人： Jingbo Wang ,  Petar Doshev ,  Markus Gahleitner ,  Pauli Leskinen

IPC分类号： C08L23/10 ,  C08L23/14

CPC分类号： C08L23/14 ,  C08F10/06 ,  C08L2203/10 ,  C08L2205/025 ,  C08L2205/24 ,  C08L2207/02 ,  C08L2310/00 ,  C08L2314/06 ,  C08F210/06 ,  C08F210/16 ,  C08F2500/05 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26 ,  C08F2/001 ,  C08L23/16

摘要： Heterophasic propylene copolymer comprising a propylene-C4 to C12 α-olefin copolymer as a matrix in which an ethylene-propylene rubber is dispersed, said heterophasic propylene copolymer has good mechanical properties and low extractables.