Patents by Inventor Walter K. Olander

Walter K. 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).

  • Flow enhanced polyphenylene ether resin compositions
    Patent number: 4684681
    Abstract: The melt viscosity of thermoplastic polyphenylene ether resins and compositions thereof with compatible thermoplastic resins is decreased when the melt has a small content of a diaryl sulfide wherein each aryl group adjacent to the sulfide linkage contains at least one --OH substituent (or ester thereof with a monobasic acid containing at least six carbon atoms).
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: August 4, 1987
    Assignee: General Electric Company
    Inventors: Gim F. Lee, Jr., Walter K. Olander
  • Oxidative coupling of phenolic monomers with manganese complexes of phenyl benzoin oxime catalysts
    Patent number: 4427594
    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: April 18, 1980
    Date of Patent: January 24, 1984
    Assignee: General Electric Company
    Inventors: Eugene G. Banucci, Walter K. Olander
  • Use of manganese chelate to oxidatively couple phenolic compound in a self-precipitating system
    Patent number: 4335234
    Abstract: Improved reaction rates and yields are provided if phenolic compounds are polymerized with basic manganese chelate catalysts in a self-precipitating system comprising an aromatic hydrocarbon and a water-immiscible alcohol.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: June 15, 1982
    Assignee: General Electric Company
    Inventors: Walter K. Olander, Otto S. Zamek
  • Thermally stable polycarbonate compositions
    Patent number: 4312803
    Abstract: Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a bisphosphite.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: January 26, 1982
    Assignee: General Electric Company
    Inventors: Ronald L. Markezich, Gary L. Freimiller, Walter K. Olander, Robert J. Axelrod
  • Poly(phenylene ether)poly(vinyl aromatic) compositions
    Patent number: 4287321
    Abstract: Polyphenylene ether-poly(vinyl aromatic) compositions are prepared by oxidatively coupling a phenol dissolved in a basic reaction medium comprising a vinyl aromatic compound in the presence of a manganese chelate catalyst, selectively liquid-liquid extracting base-reactive by-products, then thermally polymerizing the vinyl aromatic compound.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: September 1, 1981
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Manganese complexes of salicylaldehyde-alkanolimines as catalysts for the polymerization of 2,6-di-substituted phenols
    Patent number: 4280963
    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: November 30, 1979
    Date of Patent: July 28, 1981
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Hindered phenol phosphites
    Patent number: 4276233
    Abstract: Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a hindered phenol phosphite.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: June 30, 1981
    Assignee: General Electric Company
    Inventors: Ronald L. Markezich, Walter K. Olander, Robert J. Axelrod
  • Manganese complexes of phenyl benzoin in oxime catalysts
    Patent number: 4225528
    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: February 22, 1978
    Date of Patent: September 30, 1980
    Assignee: General Electric Company
    Inventors: Eugene G. Banucci, Walter K. Olander
  • Complexed manganese catalyst
    Patent number: 4221735
    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: February 22, 1978
    Date of Patent: September 9, 1980
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Process for preparing polyphenylene oxide copolymers
    Patent number: 4207406
    Abstract: A process for preparing copolymers of polyphenylene oxide employing a manganese (II) chelate catalyst is disclosed as well as grafted copolymers thereof.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: June 10, 1980
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Manganese complexes of salicyl-aldehyde-alkanolimines as catalysts for the polymerization of 2,6-di-substituted phenols
    Patent number: 4205007
    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: February 22, 1978
    Date of Patent: May 27, 1980
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Method for preparing polyphenylene oxides with manganese-vinyl resin complexes
    Patent number: 4187361
    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: June 22, 1978
    Date of Patent: February 5, 1980
    Assignee: General Electric Company
    Inventors: Eugene G. Banucci, Walter K. Olander
  • Stabilized polyphenylene ether resin compositions containing hindered phenols
    Patent number: 4184999
    Abstract: Novel compositions are disclosed which include a polyphenylene ether resin, an alkenyl aromatic resin modified with rubber, and a hindered phenol as a stabilizer. Also included within the scope of this invention are reinforced and flame-retardant compositions of the polyphenylene ether resin, the alkenyl aromatic resin modified with a rubber, and the hindered phenol.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: January 22, 1980
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Manganese benzoin-imine catalysts and process of preparing polyphenylene ethers using said compounds as catalysts
    Patent number: 4184034
    Abstract: A novel catalyst is disclosed that is useful in the oxidative coupling of phenolic monomers. The catalyst is a manganese chelate derived from a benzoin-imine.This invention relates to a new and novel catalyst that is useful for catalyzing the oxidative coupling of a phenolic monomer. The catalyst is a manganese chelate derived from a benzoin-imine.
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: January 15, 1980
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Oxidative coupling of phenolic monomers by the programmed addition of complexed manganese catalysts
    Patent number: 4130544
    Abstract: A novel method for the preparation of polyphenylene oxides is disclosed. The method comprises the oxidative coupling of a phenolic monomer.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: December 19, 1978
    Assignee: General Electric
    Inventor: Walter K. Olander
  • Polyphenylene oxide polystyrene product-by-process
    Patent number: 4098846
    Abstract: A process of forming self-condensation products of a phenol under polymer-forming reaction conditions which comprises contacting a phenol with oxygen in the presence of a secondary aliphatic amine and an effective manganese chelate complex is described. The resulting polyphenylene oxide resins in combination with styrene resins provide thermoplastic compositions having improved impact strength.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: July 4, 1978
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Polyphenylene oxide process
    Patent number: 4054553
    Abstract: A process of forming self-condensation products of a phenol under polymer-forming reaction conditions which comprises contacting a phenol with oxygen in the presence of a secondary aliphatic amine and an effective manganese chelate complex is described. The resulting polyphenylene oxide resins in combination with styrene resins provide thermoplastic compositions having improved impact strength.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: October 18, 1977
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Preparation of polyphenylene oxide using a manganese(II) ortho-hydroxyarene-oxime chelate reaction promoter
    Patent number: 3972851
    Abstract: A process for the preparation of polyphenylene oxide employing a manganese (II) ortho-hydroxyareneoxime chelate catalyst is described. The process can be effectively carried out both in the absence as well as in the presence of amines. The process is economical and useful in the production of polyphenylene oxide resins.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: August 3, 1976
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Polyphenylene oxide is prepared using a mixture of manganese chelates as a catalyst
    Patent number: 3965069
    Abstract: A process for the preparation of polyphenylene oxide employing a mixture comprising a manganese(II) oxime chelate Type (A) and a manganese chelate Type (B) as a catalyst is described. The catalyzed process can be effectively carried out in the presence as well as the absence of an amine. The process is economical and useful in the production of polyphenylene oxide resins.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: June 22, 1976
    Assignee: General Electric Company
    Inventor: Walter K. Olander
  • Preparation of polyphenylene oxide using a manganese (II) .omega.-hydroxyoxime chelate reaction promoter
    Patent number: 3956242
    Abstract: A process for the preparation of polyphenylene oxide employing a manganese(II) .omega.-hydroxyoxime chelate catalyst is described. The process can be effectively carried out both in the absence as well as in the presence of amines. The process is economical and useful in the production of polyphenylene oxide resins.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: May 11, 1976
    Assignee: General Electric Company
    Inventor: Walter K. Olander