Patents by Inventor Randy W. Hall

Randy W. Hall 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: 6891019
    Abstract: Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: May 10, 2005
    Assignee: FMC Corporation
    Inventors: Thorsten Werner Brockmann, Randy W. Hall
  • Patent number: 6875876
    Abstract: Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 5, 2005
    Assignee: FMC Corporation
    Inventors: Thorsten Werner Brockmann, Randy W. Hall
  • Publication number: 20040235647
    Abstract: The present invention provides protected functionalized polymerization initiators having less than one molar equivalent chain extension agent introduced therein to provide hydrocarbon solubility.
    Type: Application
    Filed: July 2, 2004
    Publication date: November 25, 2004
    Inventors: James A. Schwindeman, Randy W. Hall
  • Patent number: 6770587
    Abstract: The present invention provides protected functionalized polymerization initiators having less than one molar equivalent chain extension agent introduced therein to provide hydrocarbon solubility.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: August 3, 2004
    Assignee: FMC Corporation
    Inventors: James A. Schwindeman, Randy W. Hall
  • Patent number: 6717014
    Abstract: Processes for the preparation of haloalkylamines and tertiary aminoalkylorganometallic compounds are disclosed. The haloalkylamines can be prepared by direct reaction of an amine with an &agr;,&ohgr;-dihaloalkane or an &agr;,&ohgr;-dihaloalkene. Tertiary aminoalkylorganometallic compounds can be prepared by reacting selected tertiary haloalkylamines with an alkali metal at a temperature greater than 45° C. in hydrocarbon solvents.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: April 6, 2004
    Assignee: FMC Corporation
    Inventors: James Anthony Schwindeman, Randy W. Hall, Sonia S. Stryker
  • Publication number: 20030162978
    Abstract: Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 28, 2003
    Inventors: Thorsten Werner Brockmann, Randy W. Hall
  • Patent number: 6610859
    Abstract: Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: August 26, 2003
    Assignee: FMC Corporation
    Inventors: Thorsten Werner Brockmann, Randy W. Hall
  • Publication number: 20030139563
    Abstract: Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality includes a first protecting group, which can be aralkyl, methyl, allyl or tertiary alkyl group. The other of the amine protecting groups can be the same as the first protecting group. Alternatively, the second protecting group can be different from the first protecting group, in which case it is selected to have differential stability to agents used to remove the aralkyl, methyl, allyl or tertiary alkyl protecting group.
    Type: Application
    Filed: December 18, 2002
    Publication date: July 24, 2003
    Inventors: Thorsten Werner Brockmann, Randy W. Hall
  • Patent number: 6482944
    Abstract: Processes for the preparation of haloalkylamines and tertiary aminoalkylorganometallic compounds are disclosed. The haloalkylamines can be prepared by direct reaction of an amine with an &agr;, &ohgr;-dihaloalkane or an &agr;, &ohgr;-dihaloalkene. Tertiary aminoalkylorganometallic compounds can be prepared by reacting selected tertiary haloalkylamines with an alkali metal at a temperature greater than 45° C. in hydrocarbon solvents.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: November 19, 2002
    Assignee: FMC Corporation
    Inventors: James Anthony Schwindeman, Randy W. Hall, Sonia S. Stryker
  • Publication number: 20010023305
    Abstract: Processes for the preparation of haloalkylamines and tertiary aminoalkylorganometallic compounds are disclosed. The haloalkylamines can be prepared by direct reaction of an amine with an &agr;, &ohgr;-dihaloalkane or an &agr;, &ohgr;-dihaloalkene. Tertiary aminoalkylorganometallic compounds can be prepared by reacting selected tertiary haloalkylamines with an alkali metal at a temperature greater than 45° C. in hydrocarbon solvents.
    Type: Application
    Filed: March 27, 2001
    Publication date: September 20, 2001
    Inventors: James Anthony Schwindeman, Randy W. Hall, Sonia S. Stryker
  • Patent number: 6121474
    Abstract: Protected amine anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The initiators are very soluble in hydrocarbon solvents.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 19, 2000
    Assignee: FMC Corporation
    Inventors: James Anthony Schwindeman, Eric John Granger, Roderic Paul Quirk, Randy W. Hall, Robert James Letchford
  • Patent number: 6060617
    Abstract: Organometallic amide compositions and processes for preparing the same, for example, by: reacting an alkali metal, alkali metal hydride, or alkali metal amide with a substituted amine in the absence of an electron carrier; reacting an alkali metal with a substituted amine in the presence of an electron carrier in a hydrocarbon solvent; distilling a composition which includes an alkali metal amide and a reduced electron carrier to recover the alkali metal amide; reacting an alkali metal with a substituted amine in the presence of an alkyl halide; and reacting a substituted amine capable of reacting with an alkali metal to form a hydrocarbon insoluble alkali metal amide with an alkali metal in the presence of a substituted amine capable of reacting with an alkali metal to form a hydrocarbon soluble alkali metal amide.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: May 9, 2000
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, Bobby J. McElroy, James A. Schwindeman, Conrad W. Kamienski, Terry L. Rathman, Robert C. Morrison
  • Patent number: 5923044
    Abstract: A process for producing nornally liquid hydrocarbon solutions of lithium dialkylamides and lithium alkylenecycloimides, essentially free of ethers and by-product gaseous alkanes derived from C1-C4 alkyllithium compounds, comprising reacting lithium metal with a C.sub.5 to C.sub.12 secondary amine and an electron carrier compound containing at least five carbon atoms in a normally liquid hydrocarbon solvent.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: July 13, 1999
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, James A. Schwindeman, Conrad W. Kamienski, John F. Engel
  • Patent number: 5726308
    Abstract: A process for preparing high purity solutions of highly substituted lithium amide bases by direct reaction of lithium metal with highly substituted amine bases alone or in an ether solvent, a hydrocarbon solvent or in a mixed ether/hydrocarbon solvent mixture, optionally in the presence of a catalyst selected from tin salts and transition metal salts of Groups 4B, 5B, 6B, 7B, and 8 of the Periodic Table.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 10, 1998
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, Robert S. Wedinger, Terry L. Rathman, James A. Schwindeman
  • Patent number: 5605872
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: February 25, 1997
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5550203
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures:M--Q.sub.n --Z--N(A(R.sup.1 R.sup.2 R.sup.3)).sub.2or ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 27, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5527753
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: June 18, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5523364
    Abstract: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: June 4, 1996
    Assignee: FMC Corporation
    Inventors: John F. Engel, Conrad W. Kamienski, James A. Schwindeman, Randy W. Hall, Robert C. Morrison, B. Troy Dover
  • Patent number: 5493038
    Abstract: A process for quickly preparing easily separable solutions of lithium alkylamides, as exemplified by the formula(R.sub.3 M).sub.x NLi(R1).sub.y.(LB).sub.z (I)wherein M is silicon or carbon, R and R.sup.1 are C.sub.1 -C.sub.8 alkyl, cycloalkyl or alkylene groups, LB is a Lewis base, x and y are integers equaling 2, and z is greater than 1, comprising the steps of reacting lithium metal in bulk form with an alkylamine in mole ratios of metal to alkylamine ranging from 2 to 1 to 10 to 1 in a solvent selected from ethereal or selected from the group consisting of conjugated dienes, vinyl aromatic and polycyclic aromatic compounds, under an inert atmosphere at elevated temperatures for 1 to 10 hours, cooling the product and separating the product solution from the unreacted lithium metal in the reactor.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: February 20, 1996
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, Conrad W. Kamienski, Robert C. Morrison, John F. Engel
  • Patent number: 5340507
    Abstract: A catalytic process for alkylating an alkali metal selected from lithium, sodium and potassium with an alkyl halide containing 3 to 20 carbon atoms comprising conducting the reaction in the presence of a catalytic compound represented by the formula(RR.sup.1 R.sup.2 M.sup.a).sub.y A(R.sup.3).sub.xwherein R, R.sup.1 and R.sup.2 are independently selected from hydrogen, halogen, alkyl, alkenyl, cycloalkyl, and aryl groups, R.sup.3 is independently selected from alkyl groups containing 1 to 10 carbon atoms, alkylene groups containing 2 to 5 carbon atoms, aryl groups containing 6 to 18 carbon atoms, four to six-membered heterocyclic carbon containing groups containing one to two hetero atoms selected from oxygen, nitrogen, and sulfur; hydroxyalkyl, alkoxyalkyl and monoalkylaminoalkyl and dialkylaminoalkyl groups containing 2 to 13 carbon atoms; M.sup.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: August 23, 1994
    Assignee: FMC Corporation
    Inventors: Robert C. Morrison, Randy W. Hall, James A. Schwindeman, Conrad W. Kamienski, John F. Engel