Patents Assigned to W. R. Grace & Co.
  • Patent number: 11168158
    Abstract: A solid precatalyst component for use in olefinic polymerization, includes titanium, magnesium, and an electron donor compound; wherein: the electron donor compound is at least one compound represented by Formula (I).
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: November 9, 2021
    Assignees: BRASKEM AMERICA, INC., W.R. GRACE & CO.-CONN.
    Inventors: Binh Thanh Nguyen, Jonas Alves Fernandes, Zhenxing Xi
  • Publication number: 20210322955
    Abstract: A process for preparing a catalyst comprises coating substantial internal surfaces of porous inorganic powders with titanium oxide to form titanium oxide-coated inorganic powders. After the coating, an extrudate comprising the titanium oxide-coated inorganic powders is formed and calcined to form a catalyst support. Then, the catalyst support is impregnated with a solution containing one or more salts of metal selected from the group consisting of molybdenum, cobalt, and nickel.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Applicant: W.R. GRACE & CO.- CONN
    Inventors: Stephen R. Schmidt, Cristian Libanati
  • Patent number: 11104749
    Abstract: A process comprising polymerizing olefin monomers and optionally comonomers in a first reactor vessel, thereby forming a raw product stream comprising polymerized solids, unreacted monomer and optionally comonomer, the polymerized solids comprising olefin polymer, volatile organic compounds (VOC) and catalyst system. Then the polymerized solids are contacted with a catalyst poison selected from carbon monoxide, carbon dioxide, oxygen, water, alcohols, amines, or mixtures thereof, thereby forming a passivated stream. The passivated stream is maintained in an agitated state within a second reactor. The passivated stream within the second reactor is then contacted with a circulating gas comprising unreacted monomer for a residence time, thereby reducing the concentration of VOC in the polymerized solids by at least 10 wt % compared to the level before entering the second reactor, thereby forming a purified olefin polymer solids stream.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: August 31, 2021
    Assignee: W. R. GRACE & CO.-CONN.
    Inventors: Jan W. Van Egmond, Jeffrey D. Goad, John K. Kaarto, Daniel J. Chismar
  • Patent number: 11084021
    Abstract: A process for preparing a catalyst comprises coating substantial internal surfaces of porous inorganic powders with titanium oxide to form titanium oxide-coated inorganic powders. After the coating, an extrudate comprising the titanium oxide-coated inorganic powders is formed and calcined to form a catalyst support. Then, the catalyst support is impregnated with a solution containing one or more salts of metal selected from the group consisting of molybdenum, cobalt, and nickel.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: August 10, 2021
    Assignee: W.R. GRACE & CO.—CONN
    Inventors: Stephen R Schmidt, Cristian Libanati
  • Patent number: 11052029
    Abstract: A cationic compatible metal oxide and oral care compositions containing the metal oxide are disclosed. Preferably, the oral care compositions contain a cationic compatible metal oxide and a cationic ingredient, such as for example, a cationic antibacterial agent such as cetyl pyridinium chloride (“CPC”). The cationic compatible metal oxide, e.g. silica, comprise metal oxide particles having a substantially negative surface charge and a vitamin deposited onto or reacted with the surface of the metal oxide particles in an amount sufficient to provide a substantially positive surface charge on the metal oxide particle. Processes for making and using the vitamin modified metal oxide in oral care compositions are also disclosed.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 6, 2021
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: James George Miller
  • Patent number: 11046586
    Abstract: Compositions and methods for preparing mesoporous and/or mesostructured materials from low SAR zeolites are provided herewith. In particular, methods are provided that involve: (a) providing a low SAR zeolite, (b) optionally subjecting the low SAR zeolite to an acid framework modification, and (c) subjecting the framework-modified zeolite to a mesopore formation treatment. The resulting mesoporous zeolites can have bi-modal mesoporosity and higher aluminum contents relative to existing mesoporous zeolites.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: June 29, 2021
    Assignee: W.R. Grace & Co.-CONN
    Inventors: Kunhao Li, Javier Garcia-Martinez
  • Patent number: 11014995
    Abstract: A phthalate-free procatalyst composition is disclosed for olefin polymerization that exhibits excellent polymerization activity and response to hydrogen, and can produce a polyolefin exhibiting high stereoregularity, high melt flow rate, and desirable molecular weight distribution. The method for producing the procatalyst composition includes reaction of a magnesium support precursor with a tetravalent titanium halide and a combination of different internal electron donors. The first internal electron donor may comprise one or more substituted phenylene aromatic diester and the second internal electron donor may comprise a polyether, preferably a 1,3-diether. In one embodiment, the support precursor comprises a spherical spray crystalized MgCl2-EtOH adduct.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 25, 2021
    Assignee: W.R. Grace & Co.—Conn.
    Inventors: Michael J. Elder, Ronald A. Epstein, Timothy A. Boyer, Courtney S. Spain, Michael S. Miller
  • Patent number: 11000711
    Abstract: Compositions suitable for use as cosmetic products (e.g., skin cream) are disclosed. Methods of making and using compositions suitable for use as cosmetic products are also disclosed.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: May 11, 2021
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Demetrius Michos, James Neil Pryor
  • Patent number: 10982023
    Abstract: Catalyst support-activator for olefin polymerization catalysts, and processes for making, the support-activator comprising an intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and optionally: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal ion selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium. The pillared clay exhibits a basal d100 spacing of: (A) 9 to 18 angstroms; or (B) equal to or greater than about 18.5 angstroms.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: April 20, 2021
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, John Robert McCauley, Andrew G. Singleton, Demetrius Michos
  • Patent number: 10940460
    Abstract: An intercalated, modified and calcined smectite clay comprising (a) pillars comprising aluminum and: (i) at least one rare earth or lanthanide group metal; or (ii) at least one rare earth or lanthanide group metal and gallium; and (b) at least one ion-exchanged metal selected from the group consisting of aluminum, barium, beryllium, calcium, cerium, cesium, copper, chromium, gadolinium, gallium, germanium, hafnium, holmium, iron (II and III), lanthanum, lithium, magnesium, manganese, neodymium, potassium, praseodymium, rubidium, samarium, silver, selenium, sodium, strontium, tellurium, terbium, thallium, thorium, tin, titanium, uranium, ytterbium, yttrium, zinc and zirconium; wherein the clay is characterized by a basal d001 spacing equal to or greater than about 18.5 angstroms; and processes for making.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: March 9, 2021
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, John Robert McCauley, Andrew G. Singleton, Demetrius Michos
  • Patent number: 10926234
    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.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 23, 2021
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Linfeng Chen
  • Publication number: 20200369798
    Abstract: The present invention provides polymer compositions having improved corrosivity, color stability and clarity. Also disclosed is a process of preparing the polymers. The process may comprise incorporating into the polymer an acid neutralizing amount of an amorphous aluminum silicate. The amorphous aluminum silicate may be present in the polymer in an amount such that the polymer composition having a Corrosivity Index of less than 6. A refractive index of the amorphous aluminum silicate may be the same or substantially the same as a refractive index of the polymer.
    Type: Application
    Filed: February 1, 2019
    Publication date: November 26, 2020
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Amaia Montoya-Goni, John Kaarto, Michelle Ni Paine, Jose Manuel Rego, Feng Gu, Demetrius Michos, James Neil Pryor
  • Patent number: 10835495
    Abstract: Compositions containing a biologically active material and a non-ordered inorganic oxide material are disclosed. Methods of making and using compositions containing a biologically active material and a non-ordered inorganic oxide material are also disclosed.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: November 17, 2020
    Assignees: W. R. Grace & Co.-Conn., Formac Pharmaceuticals N.V.
    Inventors: Cristian Libanati, Michiel Van Speybroeck, Frederik Hendrik Monsuur
  • Publication number: 20200247920
    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: Application
    Filed: August 23, 2018
    Publication date: August 6, 2020
    Applicant: W.R. GRACE & CO.-CONN.
    Inventors: Vladimir P. MARIN, Ahmed HINTOLAY, Neil J. O'REILLY
  • Publication number: 20200223958
    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: Application
    Filed: April 1, 2020
    Publication date: July 16, 2020
    Applicants: W.R. GRACE & CO.-CONN., BRASKEM AMERICA, INC.
    Inventors: Binh Thanh NGUYEN, Jonas Alves FERNANDES, Vladimir P. MARIN, Mushtaq Ahmed PATEL
  • Patent number: 10695744
    Abstract: Adsorbent clarification agents suitable for use in bioprocessing procedures are disclosed. Methods of making and using the adsorbent clarification agents are also disclosed.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 30, 2020
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Surya Kiran Chodavarapu, Feng Gu
  • Patent number: 10662267
    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: May 26, 2016
    Date of Patent: May 26, 2020
    Assignees: W.R. GRACE & CO. -CONN., BRASKEM AMERICA, INC.
    Inventors: Binh Thanh Nguyen, Jonas Alves Fernandes, Vladimir P. Marin, Mushtaq Ahmed Patel
  • Patent number: 10660856
    Abstract: Compositions containing a biologically active ingredient and an inorganic oxide material are disclosed. Methods of making and using compositions containing a biologically active ingredient and an inorganic oxide material are also disclosed. The present invention relates to compositions comprising inorganic oxide porous material containing a biologically active ingredient in liquid form, methods of making such compositions, and methods of using them.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 26, 2020
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Frederik Hendrik Monsuur
  • Patent number: 10647788
    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.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: May 12, 2020
    Assignee: W. R. Grace & Co-.Conn.
    Inventors: Linfeng Chen, Richard E. Campbell, Jr., Jan W. Van Egmond
  • Patent number: 10647790
    Abstract: The present invention relates to an improvement for gas-phase olefin polymerization process having relatively high bed bulk density. The improvement involves the use of mixed external electron donors when polymerizing propylene in a gas-phase reactor having a polymer bed with a bulk density greater than 128 kg/m3, optionally with one or more comonomers, wherein the mixed electron donor system comprises at least a first external electron donor and a second external electron donor, and wherein the first external electron donor is a carboxylate compound.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: May 12, 2020
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ping Cai, Jan W. Van Egmond, Matthew J. Fedec, Jeffrey D. Goad, Robert C. Brady, III, Linfeng Chen