公开(公告)号：US20220227897A1

公开(公告)日：2022-07-21

申请号：US17716027

申请日：2022-04-08

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Carlton E. Ash ,  Kathy S. Clear ,  Eric D. Schwerdtfeger ,  Carlos A. Cruz ,  Jeremy M. Praetorius ,  Youlu Yu

IPC: C08F10/02 ,  B01J8/08 ,  C08K3/08 ,  B01J19/24 ,  C08K3/36

Abstract: Supported chromium catalysts containing a solid oxide and 0.1 to 15 wt. % chromium, in which the solid oxide or the supported chromium catalyst has a particle size span from 0.5 to 1.4, less than 3 wt. % has a particle size greater than 100 μm, and less than 10 wt. % has a particle size less than 10 μm, can be contacted with an olefin monomer in a loop slurry reactor to produce an olefin polymer. Representative ethylene-based polymers produced using the chromium catalysts have a HLMI of 4 to 70 g/10 min, a density from 0.93 to 0.96 g/cm3, from 150 to 680 ppm solid oxide (such as silica), from 1.5 to 6.8 ppm chromium, and a film gel count of less than 15 catalyst particle gels per ft2 of 25 micron thick film and/or a gel count of less than or equal to 50 catalyst particles of greater than 100 μm per five grams of the ethylene polymer.

公开(公告)号：US11325997B1

公开(公告)日：2022-05-10

申请号：US17543829

申请日：2021-12-07

Applicant: Chevron Phillips Chemical Company LP

Inventor： Max P. McDaniel ,  Carlton E. Ash ,  Kathy S. Clear ,  Eric D. Schwerdtfeger ,  Carlos A. Cruz ,  Jeremy M. Praetorius ,  Youlu Yu

IPC: C08F10/02 ,  C08K3/36 ,  B01J8/08 ,  B01J19/24 ,  C08K3/08

Abstract: Supported chromium catalysts containing a solid oxide and 0.1 to 15 wt. % chromium, in which the solid oxide or the supported chromium catalyst has a particle size span from 0.5 to 1.4, less than 3 wt. % has a particle size greater than 100 μm, and less than 10 wt. % has a particle size less than 10 μm, can be contacted with an olefin monomer in a loop slurry reactor to produce an olefin polymer. Representative ethylene-based polymers produced using the chromium catalysts have a HLMI of 4 to 70 g/10 min, a density from 0.93 to 0.96 g/cm3, from 150 to 680 ppm solid oxide (such as silica), from 1.5 to 6.8 ppm chromium, and a film gel count of less than 15 catalyst particle gels per ft2 of 25 micron thick film and/or a gel count of less than or equal to 50 catalyst particles of greater than 100 μm per five grams of the ethylene polymer.

公开(公告)号：US11267919B2

公开(公告)日：2022-03-08

申请号：US16898502

申请日：2020-06-11

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Alfred E. Brown, Jr. ,  Yongwoo Inn ,  Youlu Yu ,  Qing Yang ,  Ashish M. Sukhadia

IPC: C08F210/16 ,  C08F210/02 ,  C08F4/64 ,  C08F4/76 ,  C08F4/6592 ,  B29C49/00 ,  B29K23/00

Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ηE/3η at an extensional rate of 0.1 sec−1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture. These ethylene polymers can be produced using a dual catalyst system containing a single or two atom bridged metallocene compound with two indenyl groups, and a single atom bridged metallocene compound with a fluorenyl group and a cyclopentadienyl group.

公开(公告)号：US11014997B2

公开(公告)日：2021-05-25

申请号：US16413676

申请日：2019-05-16

Applicant: Chevron Phillips Chemical Company LP

Inventor： Errun Ding ,  Qing Yang ,  Randall S. Muninger ,  Youlu Yu ,  Yongwoo Inn

IPC: C08F10/02 ,  C08F2/34 ,  C08F4/6592

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 1 g/10 min, a density from 0.93 to 0.965 g/cm3, a CY-a parameter at 190° C. of less than 0.2, an average number of short chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol, and an average number of long chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol. The ethylene polymers can be used to fabricate pipes, blown films, and blow molded products, and the ethylene polymers can be produced with a dual catalyst system containing a single atom bridged or two carbon atom bridged metallocene compound with two indenyl groups or an indenyl group and a cyclopentadienyl group, and a single atom bridged metallocene compound with a fluorenyl group and a cyclopentadienyl group with an alkenyl substituent.

公开(公告)号：US20190100606A1

公开(公告)日：2019-04-04

申请号：US15723225

申请日：2017-10-03

Applicant: Chevron Phillips Chemical Company LP

Inventor： Errun Ding ,  Chung C. Tso ,  Randall S. Muninger ,  Qing Yang ,  Youlu Yu ,  Yongwoo Inn

IPC: C08F4/6192 ,  C08F4/64 ,  C08F10/02 ,  C08F210/16

CPC classification number: C08F4/6192 ,  C08F4/64 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65927 ,  C08F10/02 ,  C08F210/16 ,  C08F2410/01 ,  C08F2420/04 ,  C08F2500/01 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08L2207/068 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/08 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a density from 0.89 to 0.93 g/cm3, a ratio of Mw/Mn from 3 to 6.5, a Mz from 200,000 to 650,000 g/mol, a CY-a parameter at 190° C. from 0.2 to 0.4, and a reverse short chain branching distribution. The ATREF profile of these polymers can have a high temperature peak from 92 to 102° C., and a low temperature peak from 18 to 36° C. less than that of the high temperature peak. These polymers can have comparable physical properties to that of a metallocene-catalyzed LLDPE, but with improved processability, shear thinning, and melt strength, and can be used in blown film and other end-use applications.

公开(公告)号：US20170088646A1

公开(公告)日：2017-03-30

申请号：US14863698

申请日：2015-09-24

Applicant: Chevron Phillips Chemical Company LP

Inventor： Errun Ding ,  Jeffrey F. Greco ,  Qing Yang ,  Youlu Yu

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/10 ,  C08F4/6543 ,  C08F4/025

Abstract: Catalyst systems containing a Ziegler-Natta catalyst component are disclosed. Such catalyst systems can contain a co-catalyst and a supported catalyst containing a fluorided silica-coated alumina, a magnesium compound, and vanadium and/or tetravalent titanium.

公开(公告)号：US09217049B2

公开(公告)日：2015-12-22

申请号：US14284689

申请日：2014-05-22

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Jeff F. Greco ,  Max P. McDaniel ,  Youlu Yu ,  Gary L. Glass ,  Tony R. Crain

IPC: C08F210/16 ,  C08F4/653 ,  C08F4/6592 ,  C08L23/08 ,  C08F110/02 ,  C08F10/02 ,  C08F4/659

CPC classification number: C08F210/16 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F10/02 ,  C08F110/02 ,  C08F210/08 ,  C08F210/14 ,  C08L23/0815 ,  C08F4/025 ,  C08F2500/09 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/03 ,  C08F2500/04

Abstract: Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.

Abstract translation: 本文公开了具有熔体指数小于50g / 10min，Mw / Mn为4至20，密度为0.90至0.945g / cm 3的密度和基本恒定的短链分支分布的基于乙烯的聚合物。 这些聚合物可以使用包含具有环戊二烯基和茚基的硼桥联金属茂化合物和具有芴基的单原子桥连茂金属化合物的双重催化剂体系来制备。

公开(公告)号：US09181372B2

公开(公告)日：2015-11-10

申请号：US14485897

申请日：2014-09-15

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Max P. McDaniel ,  Tony R. Crain ,  Youlu Yu ,  Yongwoo Inn

IPC: C08F4/653 ,  C08F4/6592 ,  C08L23/08 ,  C08F210/16 ,  C08L23/00 ,  C08F4/659 ,  C08F210/00

CPC classification number: C08F110/02 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/00 ,  C08F210/16 ,  C08L23/00 ,  C08L23/0815 ,  C08L2314/06 ,  Y10S526/943 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/24 ,  C08F2500/05 ,  C08F210/14 ,  C08L23/06

Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes use a catalyst system containing three metallocene components, often resulting in polymers having a reverse comonomer distribution and a broad and non-bimodal molecular weight distribution.

Abstract translation: 本文公开了用于生产烯烃聚合物的聚合方法。 这些聚合方法使用含有三种茂金属组分的催化剂体系，其常常导致聚合物具有反向共聚单体分布和广泛的和非双峰分子量分布。

公开(公告)号：US09115225B2

公开(公告)日：2015-08-25

申请号：US14307517

申请日：2014-06-18

Applicant: Chevron Phillips Chemical Company LP

Inventor： Mark L. Hlavinka ,  Qing Yang ,  Brooke L. Small ,  Youlu Yu

IPC: C08F4/64 ,  C08F4/76 ,  C08F4/659 ,  C08F4/60 ,  B01J31/22 ,  C08F110/14

CPC classification number: C08F4/65912 ,  B01J31/2243 ,  B01J2231/10 ,  B01J2531/0258 ,  B01J2531/46 ,  B01J2531/48 ,  B01J2531/49 ,  B01J2540/10 ,  B01J2540/30 ,  B01J2540/40 ,  B01J2540/50 ,  C08F4/60158 ,  C08F4/659 ,  C08F4/76 ,  C08F110/14 ,  C08F4/64158 ,  C08F4/025

Abstract: Catalyst compositions containing N,N-bis[2-hydroxidebenzyl]amine transition metal compounds are disclosed. Methods for making these transition metal compounds and for using such compounds in catalyst compositions for the polymerization or oligomerization of alpha olefins also are provided.

Abstract translation: 公开了含有N，N-双[2-氢氧基苄基]胺过渡金属化合物的催化剂组合物。 还提供了制备这些过渡金属化合物和在催化剂组合物中用于α-烯烃聚合或低聚的这些化合物的方法。

公开(公告)号：US08912285B2

公开(公告)日：2014-12-16

申请号：US13706389

申请日：2012-12-06

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Max P. McDaniel ,  Tony R. Crain ,  Youlu Yu ,  Yongwoo Inn

IPC: C08L23/08 ,  C08L23/00 ,  C08F4/642 ,  C08F4/653 ,  C08F4/6592 ,  C08F210/00

CPC classification number: C08F110/02 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/00 ,  C08F210/16 ,  C08L23/00 ,  C08L23/0815 ,  C08L2314/06 ,  Y10S526/943 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/24 ,  C08F2500/05 ,  C08F210/14 ,  C08L23/06

Abstract: Disclosed herein are polymerization processes for the production of olefin polymers. These polymerization processes use a catalyst system containing three metallocene components, often resulting in polymers having a reverse comonomer distribution and a broad and non-bimodal molecular weight distribution.

Abstract translation: 本文公开了用于生产烯烃聚合物的聚合方法。 这些聚合方法使用含有三种茂金属组分的催化剂体系，其常常导致聚合物具有反向共聚单体分布和广泛的和非双峰分子量分布。