Patents Represented by Attorney Dean F. Vance

Find this attorney in the Justia Lawyer Directory

  • Catalyst compositions and a process for polymerizing carbon monoxide and olefins
    Patent number: 4859644
    Abstract: The invention relates to compositions that may be used as catalysts for the preparation of polymers of carbon monoxide and at least one olefinically unsaturated organic compound. The invention also relates to a process using the catalyst compositions of the invention to prepare said polymers. The process comprises contacting the monomers in the presence of a catalyst obtained from the reaction of (a) a Group VIII metal compound with (b) a bidentate phosphorus, arsenic or antimony ligand, (c) a compound selected from the group consisting of a main group metal salt having an anion of a non-hydrohalogenic acid with a pKa less than 6, and (d) an ether.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: August 22, 1989
    Assignee: Shell Oil Company
    Inventors: Johannes A. M. Van Broekhoven, Eit Drent
  • Polymer blend
    Patent number: 4857605
    Abstract: The invention is a polymeric composition comprising a blend of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a thermoplastic polyester.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: August 15, 1989
    Assignee: Shell Oil Company
    Inventor: Robert G. Lutz
  • Process for the preparation of hydrocarbyl-grafted cellulose fibers
    Patent number: 4857588
    Abstract: Hydrocarbyl-grafted cellulose fibers and a process for the preparation of hydrocarbyl chain-grafted cellulose fibers comprising the steps of contacting cellulose fibers wherein in the range of from 0.25 to 33.3% of the hydroxyl groups have been converted into the corresponding alkali metal oxy groups, with an organic compound comprising a hydrocarbyl chain having a molecular weight of at least 150 and wherein said chain carries an electrophylic functional group, at a temperature in the range of from 20.degree. to 150.degree. C.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: August 15, 1989
    Assignee: Shell Oil Company
    Inventor: Seetha Coleman-Kammula
  • Carbon monoxide/olefin co-polymerization process with phosphino substituted sulfonic acid catalyst
    Patent number: 4855399
    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: December 31, 1987
    Date of Patent: August 8, 1989
    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
  • Removal of catalyst residues from carbon monoxide/olefin polymers with catalyst complexing agent
    Patent number: 4855400
    Abstract: A linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having enhanced purity is produced by contacting the polymer, subsequent to polymerization but prior to recovery from the polymerization mixture, with a complexing agent for palladium.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: August 8, 1989
    Assignee: Shell Oil Company
    Inventors: Johannes A. M. van Broekhoven, Michael J. Doyle
  • Removal of catalyst remnants from carbon monoxide/olefin polymers at temperatures higher than polymerization temperatures
    Patent number: 4855401
    Abstract: A linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having enhanced purity is produced by contacting the polymer, subsequent to polymerization but prior to recovery from the polymerization mixture, with a bisphosphinopropane of specified structure at a temperature at least 20.degree. C. above the polymerization temperature.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Shell Oil Company
    Inventor: Johannes A. M. van Broekhoven
  • Catalyst compositions and a process for polymerizing carbon monoxide and olefins
    Patent number: 4851582
    Abstract: Carbon monoxide and at least one olefinically unsaturated organic compound may be polymerized by contacting the monomers in the presence of a catalyst which comprises a Group VIII metal compound of palladium, cobalt or nickel, a halide of tin or germanium, a nitrogen bidentate ligand and an organic oxidant. The polymers prepared are linear alternating polymers which consist of units with the formula ##STR1## where A is the residue of an alkenically unsaturated organic compound monomer.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: July 25, 1989
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Catalyst compositions and a process for polymerizing carbon monoxide and olefins
    Patent number: 4851379
    Abstract: The invention relates to compositions that may be used as catalysts for the preparation of polymers of carbon monoxide and at least one olefinically unsaturated organic compound. The invention also relates to a process using the catalyst compositions of the invention to prepare said polymers. The process comprises contacting the monomers in the presence of a catalyst obtained from the reaction of (a) a Group VIII metal compound with (b) a bidentate phosphorous, arsenic or antimony ligand, (c) a non-hydrohalogenic acid with a pKa less than 6, and (d) a quinone.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: July 25, 1989
    Assignee: Shell Oil Company
    Inventors: Johannes A. M. Van Broekhoven, Eit Drent
  • Catalytic polymerization of CO/olefin with ortho polar substituted aryl bidentate p ligand
    Patent number: 4843145
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting under polymerization conditions the carbon monoxide and hydrocarbon in the presence of a catalyst composition formed from a compound of certain Group VIII metals, e.g., palladium, an anion of a non-hydrohalogenic acid having a pKa above about 2 but below about 6, and a bidentate ligand of phosphorus wherein at least one of the monovalent phosphorus substituents is aromatic and substituted in a position ortho to the phosphorus with a polar substitutent.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: June 27, 1989
    Assignee: Shell Oil Company
    Inventors: Eit Drent, Petrus W. N. M. Van Leeuwen, Richard L. Wife
  • Polymerization of carbon monoxide/olefin with P ligand having polar aryl group
    Patent number: 4843144
    Abstract: A polymerization 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 compound, the anion of certain non-hydrohalogenic acids and certain bidentate ligands having ortho polar substitution within at least one monovalent phosphorus substituent and optionally a quinone. The polymer product is obtained in the form of globules.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: June 27, 1989
    Assignee: Shell Oil Company
    Inventors: Johannes A. M. Van Broekhoven, Richard L. Wife
  • Catalytic polymerization of carbon monoxide with functional substituted ethylenically unsaturated monomer
    Patent number: 4841020
    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: September 21, 1987
    Date of Patent: June 20, 1989
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Catalytic preparation of polyketone from carbon monoxide and olefin
    Patent number: 4835250
    Abstract: Copolymers of ethylene and CO(polyketones) are produced by copolymerization in the presence of a catalyst comprising palladium, cobalt or nickel, a bidentate phosphine ligand and a non-coordinating anion, e.g., derived from p-toluene sulfonic acid.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: May 30, 1989
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Polymerization of carbon monoxide and olefin with acid catalyst
    Patent number: 4831114
    Abstract: Linear alternating copolymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are produced in the presence of novel catalysts formed from a Group VIII metal compound, an anion of a non-hydrohalogenic acid having a pKa above about 2 but below about 4, and certain bidentate ligands of phosphorus.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: May 16, 1989
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Lightly cross-linked resin materials
    Patent number: 4786669
    Abstract: The present invention relates to a new polymer composition having the processing characteristics of a thermosetting polymer along with an improved balance of properties including improved modulus/glass transition temperature/toughness balance. These new polymer compositions are prepared by reacting certain diphenolic compounds with certain diepoxide compounds to form linear units which are lightly crosslinked through the resulting secondary hydroxyl groups. Also disclosed and claimed are processes for preparing such compositions, cured compositions and end-use applications.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: November 22, 1988
    Assignee: Shell Oil Company
    Inventor: Kenneth C. Dewhirst
  • Resin materials
    Patent number: 4786668
    Abstract: The present invention relates to a new thermoplastic polymer composition having the processing characteristics of a thermosetting polymer along with an improved balance of properties including solvent resistance and improved modulus/glass transition temperature/toughness balance. These new polymer compositions are prepared by reacting certain diphenolic compounds with certain diepoxide compounds to form linear units which are lightly crosslinked through the resulting secondary hydroxyl groups. Also disclosed and claimed are processes for preparing such compositions, cured compositions and end-use applications.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: November 22, 1988
    Assignee: Shell Oil Company
    Inventor: Kenneth C. Dewhirst
  • Olefin polymerization catalyst component
    Patent number: 4710482
    Abstract: Olefin polymerization catalyst components having improved activity and morphological properties are disclosed and claimed. In particular, the components are prepared by reacting a magnesium compound of the formula [Mg.sub.4 (OR).sub.6 (R'OH).sub.10 ]X where "X" is a counter ion having a total charge of -2 and R and R', which may be the same or different, are selected from alkyl groups of 1 to 4 carbon atoms, with a halogenated tetravalent titanium component, a halohydrocarbon component and an electron donor.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: December 1, 1987
    Assignee: Shell Oil Company
    Inventor: Robert C. Job
  • Amorphous ethylene/propylene polymers
    Patent number: 4622375
    Abstract: Solid amorphous copolymers of ethylene, propylene and an olefinic benzocyclobutene monomer of the formula ##STR1## where R.sub.1 is hydrogen or CH.sub.3 and R.sub.2 is --CH.sub.2 --.sub.n where n is 0 to 6 are claimed. Such copolymers can be easily crosslinked at temperatures above about 200.degree. C., resulting in elastomers having improved creep resistance.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: November 11, 1986
    Assignee: Shell Oil Company
    Inventor: Pui K. Wong
  • High heat metal-polymer laminate
    Patent number: 4601941
    Abstract: A novel metal-polymer-metal structural laminate is disclosed having an unexpected balance of property advantages including light weight, good adhesion between polymer and metal, high stiffness and automotive paint bake oven stability. The high heat laminate has a polymeric resinous core comprising the blend of an engineering thermoplastic resin and a selectively hydrogenated monoalkenyl arene-conjugated diene block copolymer.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: July 22, 1986
    Assignee: Shell Oil Company
    Inventors: Robert G. Lutz, William P. Gergen
  • Process for the preparation of polyisoprene
    Patent number: 4600757
    Abstract: A process for the preparation of polyisoprene by polymerizing isoprene in the presence of a beta-TiCl.sub.3 containing catalyst is disclosed thereby an activator is prepared by reacting a hydrocarbylaluminum compound and a hydroxy-aromatic compound, having at both ortho-places with respect to the hydroxy-group a secondary or tertiary alkyl-group.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: July 15, 1986
    Assignee: Shell Oil Company
    Inventors: John C. Chadwick, Brian L. Goodall
  • High heat, sound damping metal-polymer laminate
    Patent number: 4599261
    Abstract: A novel metal-polymer-metal structural laminate is disclosed having an unexpected balance of property advantages including light weight, sound damping, good adhesion between polymer and metal, high stiffness and automotive paint bake oven stability. The high heat, sound damping laminate has a polymeric resinous core comprising the blend of an engineering thermoplastic resin, butene-1 polymer and a selectively hydrogenated monoalkenyl arene-conjugated diene block copolymer.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: July 8, 1986
    Assignee: Shell Oil Company
    Inventors: William W. C. Hart, William H. Korcz