Patents by Inventor Hugo G. E. Engelbrecht

Hugo G. E. Engelbrecht 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).

  • Process for the manufacture of low molecular weight polyphenylene ether resins through redistribution
    Patent number: 6455663
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter. The invention also relates to the functionalized polyphenylene ether resin made by the process as well as blends and articles containing the functionalized polyphenylene ether resin made by the process.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: September 24, 2002
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo G. E. Engelbrecht, Juraj Liska
  • Process for the manufacture of low molecular weight polyphenylene ether resins through redistribution
    Publication number: 20020042494
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 11, 2002
    Inventors: Adrianus J.F.M. Braat, Hugo G.E. Engelbrecht, Juraj Liska
  • Process for the manufacture of low molecular weight polyphenylene ether resins through redistribution
    Patent number: 6307010
    Abstract: The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter. The invention also relates to the functionalized polyphenylene ether resin made by the process as well as blends and articles containing the functionalized polyphenylene ether resin made by the process.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: October 23, 2001
    Assignee: General Electric Company
    Inventors: Adrianus J. F. M. Braat, Hugo G. E. Engelbrecht, Juraj Liska