Patents Represented by Attorney Dean F. Vance
  • Patent number: 4960838
    Abstract: A composition comprising a blend of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and an amorphous polyamide, a process for making the blend, and articles prepared thereof.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: October 2, 1990
    Assignee: Shell Oil Company
    Inventors: William P. Gergen, William W. C. Hart
  • Patent number: 4948865
    Abstract: Novel copolymers and terpolymers are produced from carbon monoxide, a functionally-substituted ethylenically unsaturated compound wherein the functional substituent is separated from the ethylenic unsaturation by a divalent bridging group of at least one carbon, and optionally an ethylenically unsaturated hydrocarbon. The polymerization is conducted under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less than about 6 and a bidentate ligand of phosphorus or of nitrogen.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: August 14, 1990
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4948870
    Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in the presence of novel catalyst compositions formed from a palladium salt, the anion of a non-hydrohalogenic acid having a pKa less than 2 and a bidentate ligand having one atom of phosphorous and one atom of sulfur or selenium.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: August 14, 1990
    Assignee: Shell Oil Company
    Inventors: Johannes Van Doorn, Arris H. Kramer, Johannes J. Maria Snel
  • Patent number: 4940777
    Abstract: Novel linear alternating copolymers of carbon monoxide and a 1,2-alkadiene are produced by contacting the carbon monoxide and alkadiene under polymerization conditions in the presence of a catalyst composition formed from a palladium compound, the anion of a non-hydrohalogenic acid having a pKa less than 4 and a bidentate ligand of nitrogen. The novel copolymers are formed in a mixture with linear alternating copolymer of carbon monoxide and ethylenically unsaturated hydrocarbon when an ethylenically unsaturated hydrocarbon is additionally present in the polymerization mixture.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4940776
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a catalyst composition formed from a palladium salt, an anion of a non-hydrohalogenic strong acid and a bidentate ligand of phosphorous comprises the addition to the reaction mixture of particulate solid matter of defined physical characteristics.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventors: Jacobus A. Bakkum, Gerrit G. Rosenbrand
  • Patent number: 4940758
    Abstract: A polymeric polyalcohol of high molecular purity is obtained by sodium borohydride reduction of a linear alternating copolymer of carbon monoxide and ethylene in a liquid-phase solution in hexafluoroisopropanol at ambient temperature and pressure.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventor: Pui K. Wong
  • Patent number: 4940683
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a catalyst composition formed from a palladium salt and a phosphino-substituted sulfonic acid.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventors: Johannes A. Van Doorn, Eit Drent, Petrus W. N. M. Van Leeuwen, Nicolaas Meijboom, Aart B. Van Oort, Richard L. Wife
  • Patent number: 4940775
    Abstract: Novel, linear alternating terpolymers of carbon monoxide, ethylenically unsaturated hydrocarbon and non-conjugated alkadiene having at least one carbon atom between the carbon-carbon double bonds are produced in the presence of a catalyst composition formed from a palladium compound, the anion of certain strong acids and a bidentate ligand containing phosphorus or nitrogen.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: July 10, 1990
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4935396
    Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid, and a phosphine ligand, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)-2-silapropane, which can be produced with high yield, wherein the 2-silapropane moiety is additionally substituted at the silicon atom with two hydrocarbyl substituents.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: June 19, 1990
    Assignee: Shell Oil Company
    Inventors: Johannes A. Van Doorn, Johannes J. M. Snel, Nicolaas Meijboom, Richard L. Wife
  • Patent number: 4933311
    Abstract: In the process of producing a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a palladium salt, the anion of a strong non-hydrohalogenic acid and a bis(phosphino)propane, improved polymerization rates are obtained when employing a novel catalyst composition formed from a novel 1,3-bis(phosphino)propane wherein the propane moiety is additionally substituted in the 2 position with two hydrocarbyl substituents.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: June 12, 1990
    Assignee: Shell Oil Company
    Inventors: Johannes A. van Doorn, Richard L. Wife
  • Patent number: 4929701
    Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are hydrogenated in the presence of a catalyst formed from a ruthenium carbonyl and an organic iodide to produce novel alternating polymers wherein one monomeric unit is a two-carbon unit optionally substituted with a methyl group and the other monomeric unit is a 2,5-tetrahydrofurandiyl unit optionally substituted on one of the carbon atoms in the 3 or 4 positions with a methyl group.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: May 29, 1990
    Assignee: Shell Oil Company
    Inventor: Johannes A. M. van Broekhoven
  • Patent number: 4925917
    Abstract: Contacting carbon monoxide and at least one .alpha.-olefin in the presence of a catalyst composition containing a palladium compound, a halogen dicarboxylic acid, and a bidentate phosphorus ligand results in the production of polyketone polymers with high molecular weights at high polymerization rates.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: May 15, 1990
    Assignee: Shell Oil Company
    Inventors: Richard L. Wife, Pui K. Wong
  • Patent number: 4921897
    Abstract: Flame retardant compositions comprise linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor quantity, relative to the polymer, of a zinc borate or barium borate.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: May 1, 1990
    Assignee: Shell Oil Company
    Inventors: Richard L. Danforth, Darlene G. Smith
  • Patent number: 4921938
    Abstract: Contacting carbon monoxide and at lease one .alpha.-olefin in a diluent comprising at least 50% by volume of an aprotic polar compound in the presence of a catalyst formed by contacting a palladium compound, the anion of an acid having a pKa less than 4 and a bidentate phosphorus ligand results in the production of novel polyketone polymers having unsaturated end groups.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: May 1, 1990
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4921937
    Abstract: Contacting carbon monoxide, at least one .alpha.-olefin, and at least one mono-olefin with non-terminal carbon-carbon double bonds or mono-ethylinically unsaturated compound with both non-terminal double bonds and one or two carbonyloxy groups in the presence of a catalyst composition formed by contacting a palladium compound, the anion of an acid having a pKa less than 6 and a bidentate phosphorus or nitrogen ligand results in the production of novel polyketone terpolymers.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: May 1, 1990
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4916208
    Abstract: Novel, linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon have a high degree of monomeric unit purity. The polymers, produced with a catalyst composition formed from preformed palladium trifluoroacetate and a bidentate phosphorous ligand, exhibit improved thermal stability and enhanced crystallinity and crystallizability.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: April 10, 1990
    Assignee: Shell Oil Company
    Inventor: George B. Klingensmith
  • Patent number: 4914183
    Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in a continous flow reactor under conditions that result in a bulk density greater than 0.2 g/ml. The polymers are produced by polymerizing carbon monoxide and one or more olefinically unsaturated compounds in a continuous flow reactor in the presence of a palladium catalyst composition, the polymerization occuring in a liquid diluent in which the polymer product is almost or entirely insoluble, and by maintaining the polymerization at steady state wherein the ratio of the quantity of the polymer product formed per hour to the quantity of the polymer product in the reactor is less than 0.2.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: April 3, 1990
    Assignee: Shell Oil Company
    Inventors: Maarten M. Geuze, Gerrit G. Rosenbrand, James A. Salter
  • Patent number: 4914184
    Abstract: In the process of producing linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon in the presence of a catalyst composition formed from a palladium compound, a bidentate ligand of phosphorus and a non-hydrohalogenic acid having a pKa below 2, lessened reactor fouling is encountered when the amount of acid initially provided is limited with additional acid being provided when polymerization has reached a certain minimum level.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: April 3, 1990
    Assignee: Shell Oil Company
    Inventors: Gerrit G. Rosenbrand, James A. Salter
  • Patent number: 4904744
    Abstract: Blends of a major proportion of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and lesser proportions of a relatively high molecular weight poly(arylsulfone) polymer and a relatively low molecular weight poly(arylsulfone) oligomer demonstrate improved processability and improved tensile modulus and tensile strength.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: February 27, 1990
    Assignee: Shell Oil Company
    Inventors: William P. Gergen, Robert G. Lutz
  • Patent number: 4904716
    Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a poly(arylsulfone) oligomer show improved processability as compared with the unblended polymer.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: February 27, 1990
    Assignee: Shell Oil Company
    Inventors: William P. Gergen, Robert G. Lutz