Patents Assigned to W. R. Grace & Co.-Conn.
  • Publication number: 20220297088
    Abstract: Methods of making functionalized support material am disclosed. Functionalized support material suitable for use in chromatography columns or cartridges, such as in a high pressure liquid chromatography (HPLC) column or a fast protein liquid chromatography (FPLC) column, is also disclosed. Chromatography columns or cartridges containing the functionalized support material, and methods of using functionalized support material, such as a media (e.g., chromatographic material) in a chromatography column or cartridge, are also disclosed.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 22, 2022
    Applicant: W.R.Grace & Co-CONN.
    Inventor: Feng GU
  • Publication number: 20220298365
    Abstract: Improved coating formulations containing silica based matting agents in the form of a blend of low pore volume silica particles and high pore volume silica particles are disclosed. The matting formulations are useful in waterborne coating compositions to provide exceptional properties to a coated substrate. Films resulting from the coating formulations containing silica-based matting agents on a substrate unexpectedly provide improved chemical resistance to the surface of the substrate, in particular wood or plastics. Methods of making and using the silica-based matting formulations are also disclosed.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 22, 2022
    Applicant: W.R. Grace & Co.-CONN.
    Inventors: Feng GU, James Neil Pryor, Manoj Koranne
  • Patent number: 11446623
    Abstract: The present disclosure relates to methods for controlling gas phase polymerization reactors. A method for controlling a fluidized bed reactor can include forming a fluidized bed in a reactor followed by discharge of polymer product from the reactor to a product discharge tank. The polymer product can then be discharged from the product discharge tank to a blow tank and the pressure of the blow tank is measured. The pressure measured in the blow tank can then be used to control the reactor by changing one or more reactor operating inputs based on the measured blow tank pressure.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: September 20, 2022
    Assignee: W. R. Grace & Co.-Conn
    Inventors: Jeffrey Drabish, Jan Van Egmond, Thomas Gelzer
  • Publication number: 20220289881
    Abstract: A process of preparing a solid catalyst component for the production of polypropylene includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, and a hydrocarbon solvent to form a homogenous solution; b) treating the homogenous solution with an organosilicon compound during or after the dissolving step; c) treating the homogenous solution with a first titanium compound in the presence of a first non-phthalate electron donor, and an organosilicon compound, to form a solid precipitate; and d) treating the solid precipitate with a second titanium compound in the presence of a second non-phthalate electron donor to form the solid catalyst component, where the process is free of carboxylic acids and anhydrides.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 15, 2022
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Vladimir P. Marin, Ahmed Hintolay
  • Patent number: 11439988
    Abstract: The present invention discloses an inventive method for manufacturing a catalyst using alloy granules having a high-Ni content. The inventive method may include providing alloy granules comprising aluminum and nickel, and treating the alloy granules with an alkaline solution to form the catalyst. A content of the nickel in the alloy granules may be within a range of about 43 wt % to about 60 wt %. The alloy granules may have effective diameters within a range of about 1 mm to about 10 mm. The catalyst may have an attrition value of less than about 7.0%.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 13, 2022
    Assignee: W. R. GRACE & CO.-CONN.
    Inventor: Stephen R. Schmidt
  • Publication number: 20220275307
    Abstract: Methods of using silica-zirconia catalysts in processes to reduce an amount of glycidol, glycidyl ester(s), or both glycidol and glycidyl ester(s) from a triglyceride-containing composition, such as edible oils, are disclosed. Silica-zirconia catalysts and methods of making silica-zirconia catalysts are also disclosed.
    Type: Application
    Filed: April 23, 2020
    Publication date: September 1, 2022
    Applicant: W.R. GRACE & CO.-CONN.
    Inventors: Demetrius MICHOS, Chelsea L. GRIMES, Cristian LIBANATI, Ignazio CATUCCI
  • Publication number: 20220267681
    Abstract: An improved process and catalyst composition for cracking hydrocarbons in a fluidized cracking process are disclosed. The process employs circulating inventory of a regenerated cracking having a minimal carbon content. The regenerated catalyst comprises a catalyst/additive composition which contains a pentasil zeolite, iron oxide, and a phosphorous compound. In accordance with the present disclosure, the catalyst/additive contains controlled amounts of iron oxide which is maintained in an oxidized state by maintaining low amounts of carbon on the regenerated catalyst inventory. In this manner it was discovered that the catalyst composition greatly enhances the production and selectivity of light hydrocarbons, such as propylene.
    Type: Application
    Filed: July 6, 2020
    Publication date: August 25, 2022
    Applicant: W. R. GRACE & CO.-CONN.
    Inventors: Udayshankar Singh, Ranjit Kumar, Michael Scott Ziebarth, Wu-Cheng Cheng
  • Patent number: 11421056
    Abstract: The present disclosure is generally directed to polyolefin polymers, such as polypropylene homopolymers, and propylene-ethylene copolymers that have improved flow properties. In one embodiment, the polymers can be produced using a solid catalyst component that includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, and a hydrocarbon solvent to form a homogenous solution; b) treating the homogenous solution with an organosilicon compound during or after the dissolving step; c) treating the homogenous solution with a first titanium compound in the presence of a first non-phthalate electron donor, and an organosilicon compound, to form a solid precipitate; and d) treating the solid precipitate with a second titanium compound in the presence of a second non-phthalate electron donor to form the solid catalyst component, where the process is free of carboxylic acids and anhydrides.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 23, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventors: Vladimir P. Marin, Jan Van Egmond, Ahmed Hintolay
  • Patent number: 11421055
    Abstract: A process comprising polymerizing propylene and an olefin comonomer selected from C2 or C4-C8 with a Ziegler Natta catalyst system and hydrogen in a single gas-phase reactor, to form a propylene polymer, at a temperature range of from 78 to 92° C. with a H2/C3 molar ratio of 0.005 to 0.25, the catalyst system comprising: a solid catalyst component comprising a transition metal compound, a Group 2 metal compound, an internal electron donor comprising a substituted phenylene aromatic di ester; an activity limiting agent; an organo-aluminum compound; and an external electron donor composition comprising at least one silane, wherein if the olefin comonomer is ethylene it is present in the propylene polymer in an amount from 1.0-7.0 wt % based on the total weight of the propylene polymer, and if the olefin comonomer is C4-C8, it is present in an amount from 1.0-15.0 mol % based on the total amount of the propylene polymer.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: August 23, 2022
    Assignee: W.R. GRACE & CO.-CONN
    Inventors: Jan W. Van Egmond, John K. Kaarto
  • Patent number: 11389783
    Abstract: Methods of making functionalized support material are disclosed. Functionalized support material suitable for use in chromatography columns or cartridges, such as in a high pressure liquid chromatography (HPLC) column or a fast protein liquid chromatography (FPLC) column, is also disclosed. Chromatography columns or cartridges containing the functionalized support material, and methods of using functionalized support material, such as a media (e.g., chromatographic material) in a chromatography column or cartridge, are also disclosed.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: July 19, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventor: Feng Gu
  • Publication number: 20220220060
    Abstract: A Ziegler-Natta catalyst composition is disclosed. The catalyst composition is formed from a procatalyst containing a magnesium moiety and a titanium moiety. At least one internal electron donor is incorporated into the procatalyst. During a titanation procedure in conjunction with the internal electron donor, a titanium extractant is used to remove or deactivate low activity or atactic titanium active sites.
    Type: Application
    Filed: September 16, 2020
    Publication date: July 14, 2022
    Applicant: W.R. Grace & Co.-CONN
    Inventors: Ronald EPSTEIN, Michael MILLER, Michael ELDER, Vladimir MARIN, Ahmed HINTOLAY, Timothy BOYER
  • Patent number: 11370854
    Abstract: A solid catalyst component for use in olefinic polymerization, includes titanium, magnesium, a halogen, and an internal electron donor compound; wherein: the internal electron donor compound is at least one compound represented by Formula (I)):
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 28, 2022
    Assignees: Braskem America, Inc., W.R. Grace & Co.-CONN.
    Inventors: Binh Thanh Nguyen, Jonas Alves Fernandes, Vladimir P. Marin, Mushtaq Ahmed Patel
  • Publication number: 20220177611
    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.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 9, 2022
    Applicant: W.R. GRACE & CO.-CONN.
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao
  • Publication number: 20220162356
    Abstract: An activated solid catalyst component is disclosed formed from a magnesium compound, a titanium compound, an organosilicon compound, a supportive electron donor, and at least one internal electron donor. The solid catalyst component is activated to include titanium and carbon bonds by reaction with an activation agent, such as an aluminum compound. In one embodiment, small amounts of polymer are polymerized with the catalyst component during activation. The activated catalyst component is stable and, when formed, can later be used to produce various polyolefin polymers. The activated catalyst component has controlled reaction kinetics so that the catalyst does not overheat and degrade during initial polymerization.
    Type: Application
    Filed: May 7, 2020
    Publication date: May 26, 2022
    Applicant: W.R. Grace & Co.-CONN.
    Inventor: Vladimir MARIN
  • Publication number: 20220119632
    Abstract: Catalyst systems for polymerization of mixtures comprising an olefin include a selectivity control agent comprising at least one silicon-containing compound containing at least one C1-C10 alkoxy group bonded to a silicon atom and an amount of one or more agent compounds. The agent compound comprises C2-C13 mono- or polycarboxylic esters of aliphatic C2-C7 carboxylic acids and inertly substituted derivatives thereof. One or more polymerization catalysts may also be present. A polymerization process includes contacting an olefin or a mixture of the olefin and one or more copolymerizable comonomers under polymerization conditions with the catalyst composition.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 21, 2022
    Applicant: W.R. Grace & Co.-CONN.
    Inventor: Jan Willem van Egmond
  • Patent number: 11299612
    Abstract: Polypropylene polymer compositions are disclosed that can be formulated to have excellent transparency properties in conjunction with excellent impact resistance properties. The polypropylene polymer compositions are heterophasic compositions containing a first phase polymer combined with a second phase polymer. The first phase polymer is a polypropylene and alpha-olefin copolymer while the second phase polymer is also a polypropylene and alpha-olefin random copolymer. The first phase polymer contains ethylene in an amount less than 5% by weight and is present in an amount greater than the second phase polymer. The second phase polymer has elastomeric properties.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: April 12, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventors: John Kalevi Kaarto, Jing Zhong, Amaia Montoya Goni
  • Patent number: 11254848
    Abstract: The present disclosure provides compositions, films and articles containing a random propylene/ethylene copolymer and a substituted phenylene aromatic diester. Polymerization with an improved catalyst system increases the amount of ethylene incorporated into the random propylene/ethylene copolymer backbone which results in improved thermal properties, improved optical properties, and improved heat seal properties.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: February 22, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventors: Li-Min Tau, Chai-Jing Chou, John Kaarto, Peter S. Martin, William G. Sheard
  • Patent number: 11254756
    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.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 22, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao
  • Patent number: 11236222
    Abstract: Catalyst systems for polymerization of mixtures comprising an olefin include a selectivity control agent comprising at least one silicon-containing compound containing at least one C1-C10 alkoxy group bonded to a silicon atom and an amount of one or more agent compounds. The agent compound comprises C2-C13 mono- or polycarboxylic esters of aliphatic C2-C7 carboxylic acids and inertly substituted derivatives thereof. One or more polymerization catalysts may also be present. A polymerization process includes contacting an olefin or a mixture of the olefin and one or more copolymerizable comonomers under polymerization conditions with the catalyst composition.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: February 1, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventor: Jan Willem van Egmond
  • Patent number: 11236181
    Abstract: A process for preparing a solid pre-catalyst component for use in olefinic polymerization includes dissolving a magnesium chloride in an alcohol and optionally adding water to form a first solution having a water content of about 0.5 mmol water per mol MgCl2 to about 100 mmol water per mol MgCl2; contacting the first solution with a first titanium compound to form the solid pre-catalyst component; and treating the solid pre-catalyst component with a hydrocarbon or halogenated hydrocarbon solvent, optionally containing a second titanium compound.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 1, 2022
    Assignee: W.R. Grace & Co.-CONN.
    Inventors: Vladimir P. Marin, Ahmed Hintolay, Neil J. O'Reilly