Patents by Inventor Walter Karl Olander

Walter Karl Olander 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).

  • Method for preparing polyphenylene oxides with manganese-vinyl resin complexes
    Patent number: 4110312
    Abstract: A novel method is disclosed for the preparation of polyphenylene oxides by the oxidative coupling of phenolic monomers which is based on the use of a manganese-vinyl resin complex as a catalyst.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: August 29, 1978
    Assignee: General Electric Company
    Inventors: Eugene George Banucci, Walter Karl Olander
  • Moderation of manganese chelate catalyzed polymerization of phenolic monomers with polyfunctional alkanolamines
    Patent number: 4102865
    Abstract: A novel process is disclosed for the moderation of the manganese chelate catalyzed oxidative coupling of a phenolic monomer. The process is based on the addition to the polymerization mixture of a quantity of a polyfunctional alkanolamine that is sufficient to retard the rate of polymerization and permit precise control of the polymerization reaction.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: July 25, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander
  • Process for making polyphenylene oxides
    Patent number: 4097462
    Abstract: A novel process is described for the preparation of polyphenylene oxide resin composition. The process is based on the precipitation of a polyphenylene oxide resin that has been prepared by the oxidative coupling of a phenol in the presence of a manganese (II).omega.-hydroxyoxime chelate catalyst by a procedure that entrains the catalyst in the polyphenylene oxide resin.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: June 27, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander
  • Method for polymerization of polyphenylene oxides
    Patent number: 4093596
    Abstract: A novel catalyst system is disclosed that is useful in the polymerization of polyphenylene oxide resins. The catalysts are manganese complexes that are derived from a manganese salt and an imine compound.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: June 6, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander
  • Polymerization of 2,6-di-substituted phenols
    Patent number: 4093597
    Abstract: A novel catalyst is disclosed that is useful in the oxidative coupling of phenolic monomers. The catalyst is a manganese chelate that is derived from a salicylaldehyde-alkanolimine.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: June 6, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander
  • Oxidative coupling of phenolic monomers in the presence of manganese complexes of manganese phenyl benzoin oxime catalysts
    Patent number: 4093598
    Abstract: This invention provides a novel process for the oxidative coupling of phenolic monomers with novel manganese complexes of phenyl benzoin oximes.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: June 6, 1978
    Assignee: General Electric Company
    Inventors: Eugene George Banucci, Walter Karl Olander
  • Preparation of polyphenylene oxides by the oxidative coupling of a phenolic monomer in the presence of a manganese salt, base and a secondary amine
    Patent number: 4083828
    Abstract: A novel process is described for the preparation of polyphenylene oxides by the oxidative coupling of phenolic monomers which is based on the use of a catalyst which comprises a manganese salt, base and a secondary amine.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: April 11, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander
  • Promotion of manganese chelate catalyzed polyphenylene ether oxide polymerization reactions
    Patent number: 4075174
    Abstract: A novel process is disclosed for the preparation of polyphenylene oxides which is based on the use of bis-secondary diamines as reaction rate promoters for the oxidative coupling of a phenolic monomer in the presence of a magnanese chelate catalyst.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: February 21, 1978
    Assignee: General Electric Company
    Inventor: Walter Karl Olander