Abstract: Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.
Type:
Grant
Filed:
April 2, 2020
Date of Patent:
May 17, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Jeremy M. Praetorius, Chung Ching Tso, Ashish M. Sukhadia, Yongwoo Inn, Qing Yang, John T. Blagg
Abstract: Redox flow battery efficiency and performance may be improved with a high energy density bipyridinium based ionic room-temperature liquid electrolyte. Current electrolytes require solvent to dissolve the redox-active material and a supporting electrolyte to maintain charge balance. A room temperature redox-active electrolyte having intrinsic charge balancing would not need a solvent to form a liquid and would therefore have a higher density of anions and cations involved with charge storage. As such, creating redox-active bipyridinium core ionic materials that are in a liquid form at room temperature or, more particularly, are liquids across the range at which a redox flow battery would operate permit smaller and less costly flow battery design than conventional flow batteries.
Type:
Grant
Filed:
December 16, 2020
Date of Patent:
May 17, 2022
Assignee:
Phillips 66 Company
Inventors:
James A. Suttil, Sharmila Samaroo, Neal D. McDaniel, Jeffrey H. Drese, Hongjin Tan
Abstract: A method comprising a) drying a support material comprising silica at temperature in the range of from about 150° C. to about 220° C. to form a dried support; b) contacting the dried support with methanol to form a slurried support; c) subsequent to b), cooling the slurried support to a temperature of less than about 60° C. to form a cooled slurried support; d) subsequent to c), contacting the cooled slurried support with a titanium alkoxide to form a titanated support; and e) thermally treating the titanated support by heating to a temperature of equal to or greater than about 150° C. for a time period of from about 5 hours to about 30 hours to remove the methanol and yield a dried titanated support.
Type:
Grant
Filed:
December 31, 2018
Date of Patent:
May 17, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Jeremy M. Praetorius, Eric D. Schwerdtfeger, Max P. McDaniel, Ted H. Cymbaluk, Connor D. Boxell, Alan L. Solenberger, Kathy S. Clear
Abstract: A composition comprising: wherein the compositional ratio of x/y ranges from about 1/99 to about 99/1, and n ranges from 1 to 1,000,000. Additionally, in this composition, R? and R? are independently selected from: H, unsubstituted or substituted branched alkyls with 1 to 60 carbon atoms, or unsubstituted or substituted linear alkyls with 1 to 60 carbon atoms.
Type:
Grant
Filed:
November 19, 2021
Date of Patent:
May 17, 2022
Assignee:
Phillips 66 Company
Inventors:
Laura Nielsen, Reed Eisenhart, Victoria Suding, Hualong Pan, Alyssa Chinen-Mendez
Abstract: Disclosed are catalyst systems, processes for making the catalyst systems, and processes for polymerizing at least one olefin monomer comprising ethylene to form a low-density polyethylene (LDPE). The polymerization process uses a catalyst system that can include: at least one diimine complex having the formula I: wherein M is Ni, Pd, or Pt; a first activator such as an organoaluminum compound; and a second activator including a solid oxide chemically-treated with an electron withdrawing anion, such as fluoride silica-alumuina. It was discovered that such the complexes could be activated in a manner to provide an active catalyst system that polymerized ethylene to form a low-density polyethylene (LDPE).
Abstract: A method comprising contacting a silica support with a titanium-containing solution to form a titanated silica support, wherein the titanium-containing solution comprises a titanium compound, a solvent, and an amino acid. Also disclosed are olefin polymerization catalysts and pre-catalyst compositions thereof and methods of preparing olefin polymerization catalysts and pre-catalyst compositions thereof.
Type:
Grant
Filed:
June 7, 2021
Date of Patent:
May 10, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Max P. McDaniel, Kathy S. Clear, William C. Ellis, Deloris R. Gagan
Abstract: Catalyst compositions containing a metallocene compound, a solid activator, and a co-catalyst, in which the solid activator or the supported metallocene catalyst has a d50 average particle size of 15 to 50 ?m and a particle size distribution of 0.5 to 1.5, can be contacted with an olefin in a loop slurry reactor to produce an olefin polymer. A representative ethylene-based polymer produced using the catalyst composition has excellent dart impact strength and low gels, and can be characterized by a HLMI from 4 to 10 g/10 min, a density from 0.944 to 0.955 g/cm3, a higher molecular weight component with a Mn from 280,000 to 440,000 g/mol, and a lower molecular weight component with a Mw from 30,000 to 45,000 g/mol and a ratio of Mz/Mw ranging from 2.3 to 3.4.
Type:
Grant
Filed:
July 8, 2021
Date of Patent:
May 10, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Max P. McDaniel, Carlton E. Ash, Kathy S. Clear, Eric D. Schwerdtfeger, Carlos A. Cruz, Jeremy M. Praetorius, Youlu Yu
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 ?m, and less than 10 wt. % has a particle size less than 10 ?m, 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 ?m per five grams of the ethylene polymer.
Type:
Grant
Filed:
December 7, 2021
Date of Patent:
May 10, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Max P. McDaniel, Carlton E. Ash, Kathy S. Clear, Eric D. Schwerdtfeger, Carlos A. Cruz, Jeremy M. Praetorius, Youlu Yu
Abstract: Polymerization processes for producing ethylene-based plastomers and elastomers having densities less than 0.91 g/cm3 utilize a metallocene-based catalyst system containing a chemically-treated solid oxide. These polymerization processes can be conducted in a slurry reactor, a solution reactor, and/or a gas phase reactor. Ethylene polymers produced from the polymerization process can be characterized by a density of less than 0.91 g/cm3, a CY-a parameter of less than 0.2, and a ratio of HLMI/MI of at least 30, or a density less than 0.91 g/cm3, a CY-a parameter from 0.25 to 0.75, and a ratio of Mw/Mn from 2 to 3.
Type:
Grant
Filed:
September 21, 2021
Date of Patent:
May 10, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Scott E. Kufeld, Max P. McDaniel, Kenneth A. Dooley
Abstract: Disclosed are metallocene compounds, catalyst compositions comprising a metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers. In an aspect, a metallocene compounds contain a fluorenyl ligand and a cyclopentadienyl ligand which are bridged by a linking group, in which the metallocene is characterized by [1] the cyclopentadienyl ligand being substituted with a C2-C18 heterohydrocarbyl group having an oxygen atom positioned 5 atoms distance or less from the cyclopentadienyl ligand and [2] the linking group having a pendant C3-C12 alkenyl group having a terminal C?C double bond. It has been discovered that a catalyst composition comprising a metallocene compound having these features can produce polyethylene having a low melt index in the absence of a second metallocene.
Type:
Grant
Filed:
February 21, 2020
Date of Patent:
May 10, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Errun Ding, Qing Yang, Carlton E. Ash, Randall S. Muninger, Jim B. Askew, Zhou Chen
Abstract: In one embodiment, a pipeline interchange flows a product through an upstream pipeline. An automated analyzer is connected to the upstream pipeline, wherein the automated analyzer analyzes a sample of the product, and wherein the analyzer is capable of analyzing different physical and/or chemical characteristics of the product and generating a data sample. An automatic splitter is then placed downstream of the automated slipstream analyzer. In this embodiment, the automatic splitter is capable of receiving and interpreting the data sample from the automated analyzer and directing the product into at least three different downstream pipelines, wherein at least one of the downstream pipelines is a transmix pipeline and wherein at least one of the downstream pipelines returns the product upstream of the automated analyzer.
Type:
Grant
Filed:
May 3, 2021
Date of Patent:
May 3, 2022
Assignee:
Phillips 66 Company
Inventors:
Paul Rady, Marisa Purificato, Franklin Uba, Ayuba Fasasi
Abstract: A vehicle vision system including an isolation block configured to compress under pressure, a rigid block on an interface surface of the isolation block configured to distribute pressure across the interface surface of the isolation block, the rigid block including a first protrusion extending away from the interface surface and having a cavity, and a camera embedded within the cavity and configured to capture video images.
Type:
Grant
Filed:
March 13, 2020
Date of Patent:
May 3, 2022
Assignee:
Phillips Connect Technologies LLC
Inventors:
Robert Phillips, Theron Davis, Stephen Bennett
Abstract: A process of making an aromatization catalyst comprising: (a) mixing a zeolite, a binder, and water to form a mixture; (b) extruding the mixture to form a green extrudate; (c) drying the green extrudate to form a dried green extrudate; (d) calcining the dried green extrudate to form a support, wherein calcining the dried green extrudate is the only calcination step in the process; (e) washing the support to form a washed support; (f) drying the washed support to form a dried washed support; (g) impregnating the dried washed support with a Group 8-10 transition metal compound and at least one halide-containing compound to form a metalized-halided material; and (h) vacuum drying the metalized-halided material to form a dried metalized-halided material which is the aromatization catalyst.
Abstract: The present invention discloses methods for removing volatile components from an ethylene polymer effluent stream from a polymerization reactor, and related polyethylene recovery and volatile removal systems. In these methods and systems, the polymer solids temperature is increased significantly prior to introduction of the polymer solids into a purge column for the final stripping of volatile components from the polymer solids.
Type:
Grant
Filed:
July 16, 2020
Date of Patent:
April 26, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Kenneth A. Dooley, Jeffrey S. Lowell, Joseph A. Curren, Scott E. Kufeld
Abstract: Methods for determining the catalytic activity of an activated chemically-treated solid oxide using a color measurement technique are described, and these methods are integrated into transition metal-based catalyst preparation processes and systems, as well as into olefin polymerization processes and related polymerization reactor systems.
Type:
Grant
Filed:
July 19, 2021
Date of Patent:
April 12, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Qing Yang, Max P. McDaniel, Richard M. Buck, Tony R. Crain, Ryan N. Rose
Abstract: Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
Type:
Grant
Filed:
February 26, 2020
Date of Patent:
April 12, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Max P. McDaniel, Qing Yang, Kathy S. Clear, Tony R. Crain, Timothy O. Odi
Abstract: Methods for synthesizing a water-soluble titanium-silicon complex are disclosed herein. The titanium-silicon complex can be utilized to produce titanated solid oxide supports and titanated chromium supported catalysts. The titanated chromium supported catalysts subsequently can be used to polymerize olefins to produce, for example, ethylene based homopolymer and copolymers.
Type:
Grant
Filed:
March 6, 2019
Date of Patent:
April 12, 2022
Assignee:
Chevron Phillips Chemical Company LP
Inventors:
Max P. McDaniel, Kathy S. Clear, Eric D. Schwerdtfeger, Jeremy M. Praetorius
Abstract: Disclosed are air electrode materials suitable for use in solid oxide electrochemical cells (SOCs). The disclosed cells can operate in a dual function modes, i.e., as a fuel cell and as an electrolysis cell. In both cases, chemical energy and electrical energy can be directly convert from one mode to the other; thereby providing a highly efficient energy conversion process that can be used as a sustainable energy source.