公开(公告)号：US11649306B2

公开(公告)日：2023-05-16

申请号：US17371728

申请日：2021-07-09

Applicant: Dow Global Technologies LLC

Inventor： Linfeng Chen ,  Mehmet Demirors

IPC: C08F210/16 ,  C08F10/00

CPC classification number: C08F210/16 ,  C08F10/00 ,  C08F2410/04 ,  C08F210/16 ,  C08F4/6545 ,  C08F210/16 ,  C08F4/64193 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/05

Abstract: A modified Ziegler-Natta procatalyst that is a product mixture of modifying an initial Ziegler-Natta procatalyst with a molecular (pro)catalyst, and optionally an activator, the modifying occurring before activating the modified Ziegler-Natta procatalyst with an activator and before contacting the modified Ziegler-Natta procatalyst with a polymerizable olefin. Also, a modified catalyst system prepared therefrom, methods of preparing the modified Ziegler-Natta procatalyst and the modified catalyst system, a method of polymerizing an olefin using the modified catalyst system, and a polyolefin product made thereby.

公开(公告)号：US20190211117A1

公开(公告)日：2019-07-11

申请号：US16311789

申请日：2017-07-11

Applicant: BOREALIS AG

Inventor： Torvald Vestberg

IPC: C08F4/649 ,  C08F110/06 ,  C08F4/646 ,  C08F4/654

CPC classification number: C08F4/6492 ,  C08F4/6465 ,  C08F4/6545 ,  C08F110/06 ,  C08F2410/03 ,  C08F2500/12 ,  C08F2500/15

Abstract: The present invention is directed to solid catalyst particles comprising a Ziegler-Natta catalyst and a polymeric nucleating agent. Further, the present invention is also directed to a process for the preparation of said solid catalyst particles, the use of said solid catalyst particles in a process for the manufacture of a polymer and a polyolefin obtained in the presence of said solid catalyst particles.

公开(公告)号：US20190185591A1

公开(公告)日：2019-06-20

申请号：US16331234

申请日：2017-09-01

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sanjeev Kumar Gupta ,  Mohammed Al-Ofi ,  Ravi Ranjan Kumar ,  Abdulrahman Albeladi

IPC: C08F2/38 ,  C08F2/01 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  B01J8/24 ,  B01J8/18

CPC classification number: C08F2/38 ,  B01J8/1809 ,  B01J8/24 ,  B01J2219/00033 ,  B01J2219/00063 ,  C08F2/01 ,  C08F4/6545 ,  C08F4/6548 ,  C08F10/02 ,  C08F10/06 ,  C08F110/02 ,  C08F110/06 ,  C08F2400/02

Abstract: The present invention relates to a process for the continuous preparation of a polyolefin from one or more α-olefin monomers in a reactor system, the process for the continuous preparation of polyolefin comprising the steps of: feeding a polymerization catalyst to a fluidized bed through an inlet for a polymerization catalyst; feeding the one or more monomers to the reactor, polymerizing the one or more monomers in the fluidized bed to prepare the polyolefin; withdrawing polyolefin formed from the reactor through an outlet for polyolefin; withdrawing fluids from the reactor through an outlet for fluids and transporting the fluids through first connection means, an heat exchanger to cool the fluids to produce a cooled recycle stream, and through second connection means back into the reactor via an inlet for the recycle stream; wherein a thermal run away reducing agent (TRRA) is added to the reactor in a discontinuous way.

公开(公告)号：US20180215846A1

公开(公告)日：2018-08-02

申请号：US15764677

申请日：2016-11-03

Applicant: BOREALIS AG

Inventor： Bhawna Kulshreshtha ,  Markus Gahleitner

IPC: C08F210/06 ,  C08F210/16 ,  C08F2/00 ,  C08L23/12 ,  C08L23/16 ,  C08L23/14 ,  C08L23/08

CPC classification number: C08F210/06 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/12 ,  C08L23/0815 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L2205/08 ,  C08L2207/02 ,  C08L2207/07 ,  C08L2207/20 ,  C08L23/10 ,  C08L23/04 ,  C08F4/6545 ,  C08F4/6465

Abstract: The invention is related to a composition of polypropylene and polyethylene, which contains specific compatibilizer and flow enhancer. Furthermore the present invention is also related to articles comprising the said composition and the use of said articles in packaging application.

公开(公告)号：US20180066086A1

公开(公告)日：2018-03-08

申请号：US15559374

申请日：2016-03-14

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： ROBERTA MARZOLLA ,  PAOLA MASSARI ,  NICOLETTA MARTINI ,  MARCO CIARAFONI ,  TIZIANA CAPUTO

IPC: C08F210/06 ,  C08J5/18

CPC classification number: C08F210/06 ,  C08J5/18 ,  C08J2323/14 ,  C08F210/08 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/26 ,  C08F4/651 ,  C08F4/6545 ,  C08F4/6465 ,  C08F2/001

Abstract: A propylene, ethylene, 1-butene terpolymer made from or containing a) from about 1.8 wt % to about 5.9 wt % of ethylene derived units; and b) from about 2.0 wt % to about 4.5 wt % of 1 butene derived units; and having i) a ratio of C2 wt %/C4 wt % in the range from about 0.9 to about 1.3; wherein C2 wt % is the weight percent of ethylene derived units and C4 wt % is the weight percent of 1-butene derived units; ii) a Melt flow rate (determined according to ISO 1133 230° C., 2.16 kg) in the range from about 1.0 to about 30.0 g/10 min; and iii) a xylene soluble fraction at 25° C. between about 10 wt % and about 30 wt %. The weight percentages are based upon the total weight of the terpolymer.

公开(公告)号：US09809666B2

公开(公告)日：2017-11-07

申请号：US14781186

申请日：2014-04-22

Applicant: ABU DHABI POLYMERS COMPANY LIMITED (BOROUGE) ,  BOREALIS AG

Inventor： Cristian Hedesiu ,  Kauno Alastalo

IPC: C08F210/06 ,  C08L23/16 ,  C08L23/14 ,  F16L9/12 ,  B29B9/06 ,  C08J5/00 ,  B29K23/00 ,  B29K105/00

CPC classification number: C08F210/06 ,  B29B9/06 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2105/0085 ,  B29K2105/0094 ,  B29K2995/0089 ,  C08J5/00 ,  C08J2323/14 ,  C08L23/142 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2314/02 ,  F16L9/12 ,  C08F2/001 ,  C08F210/16 ,  C08F2500/04 ,  C08F2500/12 ,  C08F4/6545

Abstract: The present invention relates to a polypropylene composition comprising a multimodal propylene random copolymer with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms, wherein the polypropylene composition has a melt flow rate MFR2 (2.16 kg, 230° C.) of 0.05 to 1.0 g/10 min, determined according to ISO 1133, a polydispersity index (PI) of 2.0 to 7.0, and a Charpy Notched Impact Strength at 0° C. of more than 4.0 kJ/m2, determined according to ISO 179/1eA:2000 using notched injection moulded specimens, a process for producing said polypropylene composition, an article comprising said polypropylene composition and the use of said polypropylene composition for the production of an article.

公开(公告)号：US09714302B2

公开(公告)日：2017-07-25

申请号：US14512130

申请日：2014-10-10

Applicant: W. R. GRACE & CO.—CONN.

Inventor： Kayo Umezawa-Vizzini ,  Vladimir P. Marin ,  Michael Spencer ,  Neil J. O'Reilly ,  Ahmed Hintolay

IPC: C08F10/06 ,  C08F110/06

CPC classification number: C08F10/06 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/15 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/651 ,  C08F4/6545

Abstract: A method of making a solid catalyst component for production of a polyolefin, including the steps of: a) dissolving a halide-containing magnesium compound in a mixture including alkylepoxide, an organic phosphorous compound, a carboxylic acid or anhydride, and a hydrocarbon solvent to form a homogenous solution; b) optionally treating the homogeneous solution with a halogenating agent; c) treating the homogenous solution with a first titanium halide compound in the presence of a surface modifier and optionally a first electron donor to form a solid precipitate, wherein, if present, the first electron donor is an ether; d) optionally treating the solid precipitate with a second electron donor; and e) treating the solid precipitate with a second titanium halide compound and optionally with a second electron donor to form the solid catalyst component.

公开(公告)号：US09464144B2

公开(公告)日：2016-10-11

申请号：US14293468

申请日：2014-06-02

Applicant: W. R. Grace & Co.—Conn.

Inventor： Kelly Gonzalez ,  Clark C. Williams ,  Linfeng Chen

IPC: C08F10/06 ,  C08F110/06 ,  C08F210/06

CPC classification number: C08F10/06 ,  C07C37/02 ,  C07C37/14 ,  C07C37/16 ,  C07C37/50 ,  C07C37/56 ,  C07C37/60 ,  C07C67/14 ,  C08F110/06 ,  C08F210/06 ,  C07C69/78 ,  C08F4/651 ,  C08F210/16 ,  C08F2500/12 ,  C07C39/08 ,  C08F4/6494 ,  C08F4/6465 ,  C08F2500/18 ,  C08F4/6545

Abstract: Disclosed herein are processes for preparing procatalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present procatalyst compositions improve catalyst selectivity and also increase the bulk density of the formant polymer.

Abstract translation: 本文公开了制备原催化剂组合物和聚合物的方法，即由其制备的基于丙烯的聚合物。 本发明的前催化剂组合物改善催化剂选择性并且还增加共振峰聚合物的体积密度。

公开(公告)号：US20160145358A1

公开(公告)日：2016-05-26

申请号：US14944587

申请日：2015-11-18

Applicant: BASF Corporation

Inventor： Main Chang

IPC: C08F4/649

CPC classification number: C08F110/06 ,  C08F4/6494 ,  C08F2500/12 ,  C08F4/651 ,  C08F4/6543 ,  C08F4/6545

Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.

Abstract translation: 目前公开和要求保护的发明构思涉及包含钛，镁，卤素和具有至少一个酯基和至少一个烷氧基的内电子给体化合物的固体催化剂组分，以及含有催化剂固体组分的催化剂体系，有机铝 化合物和有机硅化合物。 目前公开和要求保护的发明构思还涉及制备催化剂组分和催化剂体系的方法，以及使用催化剂体系聚合或共聚α-烯烃的方法。

公开(公告)号：US09273167B2

公开(公告)日：2016-03-01

申请号：US14366185

申请日：2012-12-18

Applicant: BOREALIS AG

Inventor： Martina Sandholzer ,  Klaus Bernreitner ,  Katja Klimke ,  Markus Gahleitner

IPC: C08F210/06 ,  C08J5/18 ,  C08L23/14

CPC classification number: C08F210/06 ,  C08J5/18 ,  C08J2323/14 ,  C08L23/14 ,  C08L23/142 ,  C08L23/08 ,  C08F210/16 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/21 ,  C08F2500/26 ,  C08F4/6545 ,  C08F4/6465 ,  C08F4/651

Abstract: Propylene copolymer having a melt flow rate MFR2 (230° C.) in the range of 2.5 to 12.0 g/10 min, a xylene cold soluble content (XCS) in the range of 20.0 to 45.0 wt.-%, a comonomer content in the range of more than 7.5 to 12.0 wt.-%, wherein further the comonomer content of xylene cold soluble (XCS) fraction of the propylene copolymer is in the range of 16.0 to 28.0 wt.-%.

Abstract translation: 丙烯共聚物，其熔体流动速率MFR 2（230℃）为2.5〜12.0g / 10分钟，二甲苯冷溶成分（XCS）为20.0〜45.0重量％，共聚单体含量为 大于7.5至12.0重量％的范围，其中丙烯共聚物的二甲苯冷可溶（XCS）部分的共聚单体含量进一步在16.0至28.0重量％的范围内。