Patents by Inventor James G. Bennett

James G. Bennett 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 blends of rubber, a polyphenylene ether resin and an alkenyl aromatic addition polymer
    Patent number: 4118348
    Abstract: A novel process is provided for preparing a blend of rubber, a polyphenylene ether resin and an alkenyl aromatic addition polymer which comprises using an alkenyl aromatic monomer as a solvent for the oxidative coupling of a phenol to a polyphenylene ether resin and thereafter adding a rubber and polymerizing the mixture to form said blend of rubber, an alkenyl aromatic addition polymer and a polyphenylene ether resin.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: October 3, 1978
    Assignee: General Electric Company
    Inventors: James G. Bennett, Glenn D. Cooper, Arthur Katchman
  • Method for preparing polyphenylene ethers
    Patent number: 4097459
    Abstract: An improved process is disclosed for preparing polyphenylene ethers in which a polyamine complexing agent is employed to terminate the oxidative coupling reaction and to remove the metal component of the catalyst from the polymer.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: June 27, 1978
    Assignee: General Electric Company
    Inventors: James G. Bennett, Glenn D. Cooper
  • Method for preparing polyphenylene ethers
    Patent number: 4097458
    Abstract: An improved process is disclosed for preparing polyphenylene ethers in which a complexing agent selected from the group consisting of biguanide, di-o-tolylbiguanide, dicyanodiamide, and L-Arginine is employed to terminate the oxidative coupling reaction and facilitate the recovery of the polymer.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: June 27, 1978
    Assignee: General Electric Company
    Inventors: James G. Bennett, Glenn D. Cooper
  • Process for the preparation of polyphenylene ethers at elevated pressure
    Patent number: 4032512
    Abstract: An improved process is provided for preparing polyphenylene ethers by oxidatively coupling a di-ortho substituted phenolic precursor in a reaction system containing oxygen at a pressure of more than one atmosphere, and a complex catalyst formed from a cupric halide and a primary or secondary amine catalyst.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: June 28, 1977
    Assignee: General Electric Company
    Inventors: James G. Bennett, Glenn D. Cooper
  • Process for the preparation of polyphenylene ethers with activated copper-amine catalysts
    Patent number: 3988297
    Abstract: There is disclosed herein an improved process for the preparation of high molecular weight polyphenylene ethers by oxidatively coupling a di-ortho substituted phenolic precursor in a reaction vessel containing oxygen and a complex catalyst formed from a copper salt and either a primary, secondary or tertiary amine wherein in the presence of an aqueous phase a quaternary ammonium salt is employed to promote the rate of reaction.
    Type: Grant
    Filed: July 3, 1974
    Date of Patent: October 26, 1976
    Assignee: General Electric
    Inventors: James G. Bennett, Glenn D. Cooper
  • Process for the preparation of an amorphous polyphenylene oxide
    Patent number: 3960811
    Abstract: Amorphous polyphenylne oxide resins and polyphenylene oxide resins with lower degrees of crystallinity are prepared by adding a solution thereof to an antisolvent. The resins have from about 0 to 75 percent of the crystallinity of conventional polyphenylene oxide resins and provide compositions, e.g., with styrene resins, having maximum physical properties after a single extrusion.
    Type: Grant
    Filed: August 19, 1970
    Date of Patent: June 1, 1976
    Assignee: General Electric Company
    Inventors: James G. Bennett, Glenn D. Cooper