Patents by Inventor Andrew G. Singleton

Andrew G. Singleton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • Publication number: 20180142047
    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: Application
    Filed: May 9, 2016
    Publication date: May 24, 2018
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, John Robert McCauley, Andrew G. Singleton, Demetrius Michos
  • Publication number: 20180142048
    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: Application
    Filed: May 9, 2016
    Publication date: May 24, 2018
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, John Robert McCauley, Andrew G. Singleton, Demetrius Michos
  • Patent number: 9045569
    Abstract: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: June 2, 2015
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael D. Jensen, Michael J. Elder, Andrew G. Singleton, Stephen R. Schmidt, Patrick J. Kerwin, John H. Hain, Jr., Fengjun Hua
  • Publication number: 20130289227
    Abstract: Olefin polymerization catalysts or catalyst systems comprising a mixture, contact product, reaction product or complex comprising as elements or components: (A) at least one metallocene pre-catalyst compound or polymerization active metallocene compound; (B) at least one titanium containing metallocene compound; and when (A) is a metallocene pre-catalyst compound, (C) at least one activator; provided however: (I) the titanium-containing metallocene compound is inactive or substantially inactive for the polymerization of olefins prior to or concurrently with the use of the catalyst system for olefin polymerization.
    Type: Application
    Filed: January 12, 2012
    Publication date: October 31, 2013
    Applicant: W.R. GRACE & CO.-CONN
    Inventors: Michael D. Jensen, Michael J. Elder, Andrew G. Singleton, Stephen R. Schmidt, Patrick J. Kerwin, John H. Hain, JR., Fengjun Hua