Patents by Inventor Alexander W. van der Made

Alexander W. van der Made 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).

  • Hexakis phosphine catalyst
    Patent number: 5243079
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a novel hexakis phosphine ligand. The process is characterized by a lessened degree of reactor fouling.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: September 7, 1993
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Alexander W. van der Made, Petrus W. N. M. van Leeuwen
  • Polymerization process
    Patent number: 5229343
    Abstract: An improved catalyst composition for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon is formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus wherein each monovalent phosphorus substituent is phenyl substituted by at least one alkoxy group on a ring carbon atom ortho to the atom through which the group is connected to a phosphorus atom, and the divalent alkylene bridging group between the phosphorus atoms has a single substituent (other than hydrogen) having atoms of carbon, hydrogen and optionally oxygen.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: July 20, 1993
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Alexander W. van der Made
  • Polymerization process
    Patent number: 5212135
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a novel hexakis phosphine ligand. The process is characterized by a lessened degree of reactor fouling.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: May 18, 1993
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Alexander W. van der Made, Petrus W. N. M. van Leeuwen
  • Polymerization of carbon monoxide/olefin with P bidentate ligand having (1) alkoxy phenyl P group and (2) monosubstituted divalent bridging group
    Patent number: 5171832
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus wherein each monovalent phosphorus substituent is phenyl substituted by at least one alkoxy group on a ring carbon atom ortho to the atom through which the group is connected to phosphorus and the divalent alkylene bridging group has a single substituent (other than hydrogen) having atoms of carbon, hydrogen and optionally oxygen.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: December 15, 1992
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Alexander W. van der Made
  • Polymerization of carbon monoxide/olefin with hexakis phosphine ligand
    Patent number: 5169926
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a novel hexakis phosphine ligand. The process is characterized by a lessened degree of reactor fouling.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: December 8, 1992
    Assignee: Shell Oil Company
    Inventors: Johannes J. Keijsper, Alexander W. van der Made, Petrus W. N. M. van Leeuwen