公开(公告)号：US20190023822A1

公开(公告)日：2019-01-24

申请号：US15997744

申请日：2018-06-05

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Richard M. Buck

IPC: C08F210/16 ,  G01N21/31 ,  B01J19/00 ,  G01N21/33

Abstract: Methods for determining the concentration of transition metal compounds in a solution containing more than one transition metal compound are described. Polymerization reactor systems providing real-time monitoring and control of the concentrations of the transition metal components of a multicomponent catalyst system are disclosed, as well as methods for operating such polymerization reactor systems.

公开(公告)号：US10112965B2

公开(公告)日：2018-10-30

申请号：US15666663

申请日：2017-08-02

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeremy M. Praetorius ,  Qing Yang ,  Connor D. Boxell ,  Tony R. Crain

IPC: C07F17/00 ,  C08F4/6592 ,  C08F10/00 ,  C08F210/16 ,  C08F4/659

Abstract: Disclosed herein are catalyst compositions containing bicyclic bridged metallocene compounds. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene polymers produced using these catalyst compositions can be characterized by low molecular weights and high melt flow rates, and can be produced without the addition of hydrogen.

公开(公告)号：US09944736B2

公开(公告)日：2018-04-17

申请号：US15290010

申请日：2016-10-11

Applicant: Chevron Phillips Chemical Company LP

Inventor： Ted H. Cymbaluk ,  Max P. McDaniel ,  Qing Yang ,  Dennis L. Holtermann

IPC: C08F4/653 ,  C08F4/6592 ,  C08F10/00 ,  C08F210/16 ,  C08F4/659 ,  C08F4/52

CPC classification number: C08F210/16 ,  C08F4/52 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F10/00 ,  C08F2500/12 ,  C08F4/6592 ,  C08F210/14

Abstract: Methods for preparing single and dual metallocene catalyst systems containing an activator-support are disclosed. These methods can include precontacting of the activator-support and an organoaluminum compound, as well as sequential contacting of two different metallocene compounds to form a dual metallocene catalyst system.

公开(公告)号：US09890093B2

公开(公告)日：2018-02-13

申请号：US14977728

申请日：2015-12-22

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Uriah J. Kilgore ,  Max P. McDaniel ,  Brooke L. Small ,  Kenneth D. Hope ,  Eduardo J. Baralt

IPC: C07C2/10 ,  C07C9/15

CPC classification number: C07C2/10 ,  C07C9/15 ,  C07C2521/04 ,  C07C2527/053 ,  C07C2527/06 ,  C07C2527/10 ,  C07C2527/12 ,  C07C11/02

Abstract: Oligomerization processes include the steps of introducing a monomer containing a C3 to C30 olefin and a chemically-treated solid oxide into a reaction zone, and oligomerizing the monomer to form an oligomer product in the reaction zone. Fluorided silica-coated alumina and fluorided-chlorided silica-coated alumina are illustrative chemically-treated solid oxides that can be used in the oligomerization processes.

公开(公告)号：US09840570B2

公开(公告)日：2017-12-12

申请号：US13794052

申请日：2013-03-11

Applicant: Chevron Phillips Chemical Company LP

Inventor： Ashish M Sukhadia ,  Guylaine St. Jean ,  Qing Yang ,  Max P. McDaniel

IPC: C08F10/02 ,  C08F10/04 ,  C08F10/08 ,  C08F10/14 ,  C08J5/18 ,  C08L23/08 ,  C08F10/06 ,  C08F10/10

CPC classification number: C08F10/02 ,  C08F10/04 ,  C08F10/06 ,  C08F10/08 ,  C08F10/10 ,  C08F10/14 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025

Abstract: An ethylene alpha-olefin copolymer having (a) a density of from about 0.910 g/cc to about 0.940 g/cc; (b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and (c) a melt index at a load of 2.16 kg of from about 0.01 dg/10 min. to about 0.5 dg/min.; wherein a 1 mil blown film formed from the polymer composition is characterized by (i) a Dart Impact strength greater than about 175 g/mil; (ii) an Elmendorf machine direction tear strength greater than about 20 g/mil; and (iii) an Elmendorf transverse direction tear strength greater than about 475 g/mil.

公开(公告)号：US09791358B2

公开(公告)日：2017-10-17

申请号：US15471414

申请日：2017-03-28

Applicant: Chevron Phillips Chemical Company LP

Inventor： Youlu Yu ,  Qing Yang ,  Paul J. Deslauriers ,  Mark J. Lamborn ,  Yongwoo Inn

IPC: G01N5/00 ,  C08F110/02 ,  C08J5/18 ,  C08L23/06 ,  G01N11/00 ,  G01N33/44 ,  C08J5/00 ,  G01N11/06

CPC classification number: G01N5/00 ,  C08F110/02 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/06 ,  G01N11/00 ,  G01N11/06 ,  G01N33/442

Abstract: A method of preparing a polymer article comprising determining a zero-shear viscosity for a polymer sample; sieving the polymer sample to produce a plurality of sieved polymer samples; determining a molecular weight distribution for each of the plurality of sieved polymer samples; determining a zero-shear viscosity for each of the plurality of sieved polymer samples; determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample; identifying a polymer sample having a ratio of the zero shear viscosity to zero shear viscosity for the polymer sample of from about 0.5 to equal to or greater than about 3; and preparing a polymer article from the identified polymer sample.

公开(公告)号：US20170233309A1

公开(公告)日：2017-08-17

申请号：US15438822

申请日：2017-02-22

Applicant: Chevron Phillips Chemical Company LP

Inventor： Qing Yang ,  Max P. McDaniel ,  Uriah J. Kilgore ,  Mark L. Hlavinka

IPC: C07C2/68

CPC classification number: C07C2/68 ,  B01J21/12 ,  B01J27/053 ,  B01J27/10 ,  B01J27/12 ,  B01J37/0201 ,  B01J37/0209 ,  B01J37/24 ,  B01J37/26 ,  C07C2/66 ,  C07C2521/04 ,  C07C2521/12 ,  C07C2527/06 ,  C07C2527/10 ,  C07C2527/12 ,  C07C2527/125 ,  C07C15/02 ,  C07C15/107

Abstract: The present invention discloses processes for alkylating an aromatic compound, such as benzene or toluene, using a chemically-treated solid oxide. Suitable chemically-treated solid oxides include fluorided silica-coated alumina and fluorided-chlorided silica-coated alumina.

公开(公告)号：US09718907B2

公开(公告)日：2017-08-01

申请号：US15194622

申请日：2016-06-28

Applicant: Chevron Phillips Chemical Company LP

Inventor： Errun Ding ,  Chung C. Tso ,  Youlu Yu ,  Qing Yang ,  Richard M. Buck

IPC: C08F4/00 ,  C08F210/00 ,  C08F10/00 ,  C08F10/14 ,  C08F110/02 ,  C08F210/02 ,  C08F210/16 ,  C08F4/659

CPC classification number: C08F210/02 ,  C08F4/65912 ,  C08F210/16 ,  C08F4/65904 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/17 ,  C08F110/02

Abstract: Catalyst systems having both a metallocene catalyst component and a Ziegler-Natta component are disclosed. Such catalyst systems can contain a metallocene compound, an activator-support, an organoaluminum compound, and a Ziegler-Natta component comprising titanium supported on magnesium chloride.

公开(公告)号：US20170145123A1

公开(公告)日：2017-05-25

申请号：US15428183

申请日：2017-02-09

Applicant: Chevron Phillips Chemical Company LP

Inventor： Ashish M. Sukhadia ,  Max P. McDaniel ,  Errun Ding ,  Guylaine St. Jean ,  Qing Yang ,  Daniel G. Hert ,  Chung Ching Tso

IPC: C08F10/02

CPC classification number: C08F10/02 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F210/02 ,  C08F210/08 ,  C08F210/14 ,  C08F210/16 ,  C08F2410/02 ,  C08F2420/01 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08F2500/04 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/12 ,  C08F2500/26

Abstract: Disclosed herein are ethylene-based polymers produced using dual metallocene catalyst systems. These polymers have low densities, high molecular weights, and broad molecular weight distributions, as well as having the majority of the long chain branches in the lower molecular weight component of the polymer, and the majority of the short chain branches in the higher molecular weight component of the polymer. Films produced from these polymers have improved impact and puncture resistance.

公开(公告)号：US20170081439A1

公开(公告)日：2017-03-23

申请号：US15366068

申请日：2016-12-01

Applicant: Chevron Phillips Chemical Company LP

Inventor： Jeffrey F. Greco ,  Qing Yang ,  Tony R. Crain

IPC: C08F110/02 ,  C07F17/00

CPC classification number: C08F110/02 ,  B01J31/2295 ,  B01J2531/46 ,  B01J2531/48 ,  C07F17/00 ,  C08F4/65904 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F10/02 ,  C08F210/16 ,  C08L23/0815 ,  C08F4/025 ,  C08F2500/09 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/08 ,  C08F2500/03 ,  C08F2500/04 ,  C08F2500/02 ,  C08F2500/07

Abstract: Disclosed herein are catalyst compositions containing boron bridged, cyclopentadienyl-indenyl metallocene compounds with an alkenyl substituent. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene homopolymers produced using these catalyst compositions can be characterized by a density less than 0.97 g/cm3 and a melt index greater than 50 g/10 min.