公开(公告)号：US20100130710A1

公开(公告)日：2010-05-27

申请号：US12623514

申请日：2009-11-23

Applicant: Linfeng Chen

Inventor： Linfeng Chen

IPC: C08F4/00 ,  B01J31/02

CPC classification number: C08F10/06 ,  C08F110/06 ,  C08F4/654 ,  C08F4/651 ,  C08F2500/04 ,  C08F2500/18 ,  C08F2500/12

Abstract: Provided is a procatalyst composition containing a multiple internal electron donor with at least two components, one of which is a silyl ester. The other component of the mixed internal electron donor may be an electron donor component. The electron donor component may be an aromatic acid ester, a di-ether, and combinations thereof. Catalyst compositions containing the multiple internal electron donor exhibit improved hydrogen response during olefin polymerization and produce propylene-based polymers with broad molecular weight distribution, high flexural modulus, and high melt flow rate.

Abstract translation: 提供了含有至少两种组分的多重内电子给体的主催化剂组合物，其中一种是甲硅烷基酯。 混合内电子给​​体的另一组分可以是电子给体组分。 电子给体组分可以是芳族酸酯，二醚及其组合。 含有多重内电子给体的催化剂组合物在烯烃聚合期间表现出改善的氢响应，并产生具有宽分子量分布，高挠曲模量和高熔体流动速率的基于丙烯的聚合物。

公开(公告)号：US07678868B2

公开(公告)日：2010-03-16

申请号：US12352173

申请日：2009-01-12

Applicant: Linfeng Chen ,  Richard E. Campbell, Jr.

Inventor： Linfeng Chen ,  Richard E. Campbell, Jr.

IPC: C08F4/642 ,  C08F4/649

CPC classification number: C08F10/00 ,  B01J31/0201 ,  B01J31/0272 ,  B01J31/04 ,  B01J31/143 ,  C08F10/06 ,  C08F110/06 ,  C08F4/6496 ,  C08F4/6495 ,  C08F4/6494 ,  C08F4/6465 ,  C08F2500/12 ,  C08F2500/18

Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; a selectivity control agent (SCA) comprising at least one silicon containing compound containing at least one C1-10 alkoxy group bonded to a silicon atom, and one or more activity limiting agent (ALA) compounds comprising one or more aliphatic or cycloaliphatic carboxylic acids; alkyl-, cycloalkyl- or alkyl(poly)(oxyalkyl)-(poly)ester derivatives thereof; or inertly substituted derivatives of the foregoing.

Abstract translation: 一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔前催化剂组合物，其包含一种或多种过渡金属化合物和一种或多种芳族二羧酸内电子给体的酯; 一种或多种含铝助催化剂; 包含至少一种含有至少一个与硅原子键合的C 1-10烷氧基的含硅化合物的选择性控制剂（SCA）和一种或多种包含一种或多种脂族或脂环族羧酸的活性限制剂（ALA）化合物; 烷基 - ，环烷基 - 或烷基（聚）（烷氧基） - （聚）酯衍生物; 或惰性取代的衍生物。

公开(公告)号：US20090182101A1

公开(公告)日：2009-07-16

申请号：US12352173

申请日：2009-01-12

Applicant: Linfeng Chen ,  Richard E. Campbell, JR.

Inventor： Linfeng Chen ,  Richard E. Campbell, JR.

IPC: C08F2/01

CPC classification number: C08F10/00 ,  B01J31/0201 ,  B01J31/0272 ,  B01J31/04 ,  B01J31/143 ,  C08F10/06 ,  C08F110/06 ,  C08F4/6496 ,  C08F4/6495 ,  C08F4/6494 ,  C08F4/6465 ,  C08F2500/12 ,  C08F2500/18

Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procataJyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors: one or more aluminum containing cocatalysts; a selectivity control agent (SCA) comprising at least one silicon containing compound containing at least one C1-10 aikoxy group bonded to a silicon atom, and one or more activity limiting agent (ALA) compounds comprising one or more aliphatic or cycloaliphatic carboxylic acids; alkyl-, cycloalkyl- or alkyl(poly)(oxyalkyl)-(poly)ester derivatives thereof; or inertly substituted derivatives of the foregoing.

Abstract translation: 一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔原药组合物，其包含一种或多种过渡金属化合物和一种或多种芳族二羧酸内电子给体的酯：一种或多种含铝助催化剂; 包含至少一种含有至少一个与硅原子键合的C 1-10烷氧基的含硅化合物的选择性控制剂（SCA）和一种或多种包含一种或多种脂族或脂环族羧酸的活性限制剂（ALA）化合物; 烷基 - ，环烷基 - 或烷基（聚）（烷氧基） - （聚）酯衍生物; 或惰性取代的衍生物。

公开(公告)号：US07420021B2

公开(公告)日：2008-09-02

申请号：US10568981

申请日：2004-08-18

Applicant: Linfeng Chen

Inventor： Linfeng Chen

IPC: C08F4/42

CPC classification number: C08F110/06 ,  C08F10/00 ,  C08F4/6494 ,  C08F4/6465 ,  C08F2500/12 ,  C08F2500/18

Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 98.0 to 99.9 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 2.0 to 0.1 mol percent of one or more alkoxysilane compounds.

Abstract translation: 一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔前催化剂组合物，其包含一种或多种过渡金属化合物和一种或多种芳族羧酸内电子给体的单酯; 一种或多种含铝助催化剂; 和两种或更多种不同选择性控制剂的混合物，所述SCA混合物包含98.0至99.9mol％的一种或多种芳族单羧酸或其取代衍生物的一种或多种酯，以及2.0至0.1mol％的一种或多种 烷氧基硅烷化合物。

公开(公告)号：US20070066771A1

公开(公告)日：2007-03-22

申请号：US10568982

申请日：2004-08-18

Applicant: Jeffery Bradley ,  Linfeng Chen ,  William Sheard ,  Michael Zummallen

Inventor： Jeffery Bradley ,  Linfeng Chen ,  William Sheard ,  Michael Zummallen

IPC: C08G85/00 ,  B01J31/00

CPC classification number: B01J31/128 ,  B01J31/0212 ,  B01J31/04 ,  B01J31/143 ,  B01J2231/122 ,  B01J2531/22 ,  B01J2531/46 ,  C08F110/06 ,  C08F4/6494 ,  C08F4/651 ,  C08F4/6465 ,  C08F2500/12 ,  C08F2500/18

Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalyst; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 70 to 98 mol percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 30 to 2 mol percent of one or more alkoxysilane compounds containing one or more 5- or 6-membered cyclic groups optionally containing one or more Group 14, 15 or 16 heteroatoms.

Abstract translation: 一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔前催化剂组合物，其包含一种或多种过渡金属化合物和一种或多种芳族羧酸内电子给体的单酯; 一种或多种含铝助催化剂; 和两种或更多种不同选择性控制剂的混合物，所述SCA混合物包含70至98mol％的一种或多种一种或多种芳族单羧酸或其取代衍生物的酯，以及30至2mol％的一种或多种 含有一个或多个任选含有一个或多个第14,15或16个杂原子的5或6元环基团的烷氧基硅烷化合物。

公开(公告)号：US20060223956A1

公开(公告)日：2006-10-05

申请号：US10568932

申请日：2004-08-18

Applicant: Linfeng Chen

Inventor： Linfeng Chen

IPC: C08G85/00

CPC classification number: C08F110/06 ,  C08F4/6465 ,  C08F4/6494 ,  C08F4/651 ,  C08F2500/12 ,  C08F2500/18

Abstract: A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic carboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof and the reaction product or mixture formed by contacting one or more alkoxysilane compounds with an organoaluminum compound.

Abstract translation: 一种用于丙烯聚合的催化剂组合物，其包含一种或多种齐格勒 - 纳塔前催化剂组合物，其包含一种或多种过渡金属化合物和一种或多种芳族羧酸内电子给体的酯; 一种或多种含铝助催化剂; 和两种或更多种不同选择性控制剂的混合物，所述SCA混合物包含一种或多种一种或多种芳族单羧酸或其取代衍生物的酯，以及通过使一种或多种烷氧基硅烷化合物与有机铝化合物接触形成的反应产物或混合物。

公开(公告)号：US10647788B2

公开(公告)日：2020-05-12

申请号：US12674468

申请日：2008-08-21

Applicant: Linfeng Chen ,  Richard E. Campbell, Jr. ,  Jan W. Van Egmond

Inventor： Linfeng Chen ,  Richard E. Campbell, Jr. ,  Jan W. Van Egmond

IPC: C08F10/06 ,  C08F10/02 ,  B01J8/18 ,  C08F210/06 ,  C08F110/06

Abstract: A catalyst composition for the polymerization of propylene is provided. The catalyst composition includes one or more Ziegler-Natta procatalyst compositions having one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors, one or more aluminum containing cocatalysts and a selectivity control agent (SCA). The SCA is a mixture of an activity limiting agent and a silane composition. The catalyst composition has a molar ratio of aluminum to total SCA from 0.5:1 to 4:1. This aluminum/SCA ratio improves polymerization productivity and the polymer production rate. The catalyst composition is self-extinguishing.

公开(公告)号：US10358505B2

公开(公告)日：2019-07-23

申请号：US13993503

申请日：2011-12-20

Applicant: Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

Inventor： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

IPC: C08F4/60 ,  C08F110/00 ,  C08F4/00 ,  C08F110/06 ,  C08F4/16 ,  C08F4/609

Abstract: Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate.

公开(公告)号：US10322394B2

公开(公告)日：2019-06-18

申请号：US13059495

申请日：2009-02-23

Applicant: Linfeng Chen

Inventor： Linfeng Chen

IPC: C08F4/52 ,  C08F10/06 ,  B01J8/18 ,  C08F10/02 ,  C08F110/06 ,  B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  B01J31/22 ,  C08F210/06

Abstract: The present disclosure provides a Ziegler-Natta catalyst composition comprising a procatalyst, a cocatalyst and a mixed external electron donor comprising a first selectivity control agent, a second selectivity control agent and an activity limiting agent. A polymerization process incorporating the present catalyst composition produces a high-stiffness propylene-based polymer with a melt flow rate greater than about 50 g/10 min. The polymerization process occurs in a single reactor, utilizing standard hydrogen concentration with no visbreaking.

公开(公告)号：USD832120S1

公开(公告)日：2018-10-30

申请号：US29606399

申请日：2017-06-05

Applicant: Linfeng Chen

Designer： Linfeng Chen