公开(公告)号：US11639435B2

公开(公告)日：2023-05-02

申请号：US16762842

申请日：2018-08-21

Applicant: LOTTE CHEMICAL CORPORATION

Inventor： Hyun Yul Woo ,  Rai Ha Lee ,  Su Jeong Jeong ,  Joon Keun Min ,  Eun Hye Shin ,  Byung Hun Chae

IPC: C08F4/64 ,  C08F210/06 ,  C08F236/20 ,  C08L23/12 ,  C08F4/659 ,  C08F4/6592 ,  C08L23/26

Abstract: Disclosed is a method using a metallocene catalyst system so as to control the polymer structure of a diene-modified polypropylene through process simplification, thereby being capable of preparing a hyperbranched polypropylene resin having a low gel content and improved melt strength. The present invention provides a method using a catalyst so as to polymerize propylene and a diene compound, thereby preparing a diene-modified polypropylene resin having a branching index of 0.95 or less, a gel content of 3 wt % or less and an advanced rheometric expansion system (ARES) melt strength of 5 g or more.

公开(公告)号：US11634513B2

公开(公告)日：2023-04-25

申请号：US17659790

申请日：2022-04-19

Applicant: Formosa Plastics Corporation, U.S.A.

Inventor： Michael D Jensen ,  Kevin Chung ,  Daoyong Wang ,  Wei-Chun Shih ,  Guangxue Xu ,  Chih-Jian Chen ,  Charles R. Johnson, II ,  Mary Lou Cowen

IPC: C08F4/02 ,  C08F4/6592 ,  C08F110/02 ,  C08F110/06 ,  C08F210/16 ,  C08F4/659 ,  C08F2/01 ,  C08F2/34 ,  C08F10/06

Abstract: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

公开(公告)号：US20230118712A1

公开(公告)日：2023-04-20

申请号：US17906476

申请日：2021-03-05

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Ranwha PARK ,  Seongyeon PARK ,  Won Jong LEE ,  Wook JEONG ,  Taeho JEONG

IPC: C07F17/00 ,  C08F4/6592

Abstract: The present invention relates to a process for preparing a transition metal compound. Specifically, the present invention relates to a process for preparing a transition metal compound having a non-bridged, asymmetric biscyclopentadienyl group that can be used in the preparation of a catalyst for olefin polymerization. The process for preparing a transition metal compound according to an embodiment of the present invention is capable of conveniently preparing a transition metal compound having a non-bridged, asymmetric biscyclopentadienyl group.

公开(公告)号：US11613593B2

公开(公告)日：2023-03-28

申请号：US17173850

申请日：2021-02-11

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jo Ann M. Canich ,  Jian Yang ,  Alexander Z. Voskoboynikov ,  Andrey F. Asachenko ,  Oleg V. Samsonov ,  Georgy P. Goryunov

IPC: C07F17/00 ,  C08F4/6592 ,  C08F4/642 ,  C08F4/659 ,  C08F10/02 ,  C08F10/06

Abstract: Metallocene complexes represented by the structure below are useful for alpha olefin oligomerization in the presence of an activator to generate polyalphaolefins having a high percentage of vinylidene termination and relatively low Mn values. M is a group 4 transition metal. A is a bridging group having one bridging atom extending between a first indenyl ring and a second indenyl ring. Each X is independently an anionic ligand, or two Xs are joined and bound to M to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand. R1, R1′, R3, R3′, R4, R4′, R7 and R7′ are hydrogen. R5, R5′, R6, and R6′ are independently a C1-C10, optionally substituted, hydrocarbyl group, or R5 and R6 and/or R5′ and R6′ are bonded together to form an optionally substituted hydrocarbyl ring structure.

公开(公告)号：US20230091228A1

公开(公告)日：2023-03-23

申请号：US17756795

申请日：2020-12-01

Applicant: SABIC SK NEXLENE COMPANY PTE. LTD.

Inventor： Dongcheol SHIN ,  Yeonock OH ,  Minji KIM ,  Miji KIM ,  Sang Bae CHEONG ,  Dongkyu PARK ,  Choon Sik SHIM ,  Minho JEON ,  Dae Ho SHIN

IPC: C07F7/00 ,  C07F7/08 ,  C08F4/6592 ,  C07F5/02 ,  C07F5/06

Abstract: The present invention provides a transition metal compound, a catalyst composition comprising same, and a method for producing an olefin polymer using the catalyst composition. A transition metal compound having a specific functional group at a specific position, according to the present invention, has high solubility and catalytic activity, and thus a method for producing an olefin polymer by using said transition metal compound can produce an olefin polymer having excellent physical properties through a simple process.

公开(公告)号：US20230028045A1

公开(公告)日：2023-01-26

申请号：US17930560

申请日：2022-09-08

Applicant: AGC INC.

Inventor： Yosuke OCHI ,  Takuya FUJIMOTO

IPC: C08F4/6592 ,  C08F210/16

Abstract: A borate compound-composition may contain soluble in hydrocarbon solvents and useful as a cocatalyst for solution polymerization of olefins or dienes. A composition containing a compound of formula (1) and a compound of formula (4): wherein each symbol is as defined in the specification, which is useful as a cocatalyst for polymerization of olefins or dienes, and a production method thereof can be provided.

公开(公告)号：US20230023983A1

公开(公告)日：2023-01-26

申请号：US17942559

申请日：2022-09-12

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Hye Kyung Lee ,  Heekwang Park ,  Daesik Hong ,  Sangjin Jeon

IPC: B01J37/04 ,  C08F4/6592 ,  C08F10/06

Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.

公开(公告)号：US11542352B2

公开(公告)日：2023-01-03

申请号：US16770750

申请日：2018-12-24

Applicant: LG Chem, Ltd.

Inventor： Sang Eun Park ,  Eun Jung Lee ,  Hyun Jin Ju ,  In Sung Park ,  Kyung Bok Bae ,  Choong Hoon Lee

IPC: C08F210/16 ,  C08F4/6592 ,  C08F210/18 ,  C08F4/659 ,  C08F210/02 ,  C08F210/08 ,  C08L23/08

Abstract: The present invention relates to an olefin-based polymer, which has (1) a density (d) ranging from 0.85 to 0.90 g/cc, (2) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 0.1 g/10 min to 15 g/10 min, (3) the density (d) and the melt temperature (Tm) satisfying Tm (° C.)=a×d−b of Equation 1 (2,350

公开(公告)号：US20220403073A1

公开(公告)日：2022-12-22

申请号：US17762930

申请日：2021-07-02

Applicant: LG Chem, Ltd.

Inventor： In Sung Park ,  Ji Yoon Woo ,  Sang Eun Park ,  Ki Eun Kim ,  Sang Wook Han

IPC: C08F210/16 ,  C08F4/6592 ,  C08F2/04 ,  C08F2/01

Abstract: The present invention relates to an olefin-based polymer satisfying requirements: (1) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 1.0 to 10.0 g/10 min; (2) a density (d) ranging from 0.875 to 0.895 g/cc; (3) 0.5 J/g≤dH(100)≤3.0 J/g and 1.0 J/g≤dH(90)≤6.0 J/g as measured by successive self-nucleation/annealing (SSA) using a differential scanning calorimeter (DSC); (4) 15≤T(90)−T(50)≤30 and 50° C.≤T(50)≤75° C. as measured by SSA using a DSC; and (5) a melting point (Tm) of 55° C.≤Tm≤80° C. as measured using a DSC. The olefin-based polymer according to the present invention is a low-density olefin-based polymer and has a highly crystalline region introduced therein, thereby exhibiting high mechanical stiffness.

公开(公告)号：US11504706B2

公开(公告)日：2022-11-22

申请号：US16957270

申请日：2018-12-14

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Hye Kyung Lee ,  Heekwang Park ,  Daesik Hong ,  Sangjin Jeon

IPC: B01J37/04 ,  C08F4/6592 ,  C08F10/06

Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.