Patents by Inventor Jan-Erik Osterholm

Jan-Erik Osterholm 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).

  • Electrically conducting thermoset polymer compositions with hydroxy containing protonic acid dopant
    Patent number: 5662833
    Abstract: The present invention relates to electrically conducting thermoset compositions and methods for preparing them. In the compositions according to the invention, the conducting component is a polyaniline protonated with a protonic acid containing at least one hydroxyl group. The thermoset matrix can be, for instance, a phenol-formaldehyde resin, a melamine-formaldehyde resin, or a polyester resin.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: September 2, 1997
    Assignee: Neste Oy
    Inventors: Jukka Laakso, Jan-Erik Osterholm, Hannele Jarvinen
  • Electrically conducting polyaniline: method for emulsion polymerization
    Patent number: 5324453
    Abstract: A method of emulsion polymerization of aniline or substituted anilines for making substituted or unsubstituted homopolymers and co-polymers of aniline. The method includes formation of an emulsion of aniline monomers, polar solvent, non-polar or weakly polar solvent and functionalized protonic acid, which is selected for its ability to perform two functions: acting as a surfactant and acting as a protonating agent (dopant) in producing an electrically conducting polymer. Then, an oxidant is added to polymerize the ingredients of the emulsion. This method provides polyaniline particles of highly crystalline and oriented morphologies of controlled aspect ratios.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: June 28, 1994
    Assignee: Neste Oy
    Inventors: Yong Cao, Jan-Erik Osterholm
  • Conductive plastic composites
    Patent number: 5219492
    Abstract: The invention relates to a conductive polymer composite wherein the internally conductive polymer component consists of a polymer of a 3-substituted thiophene, the polymer being doped with a suitable electron acceptor or electron emitter compound. The polymer composite is prepared by processing in molten state by various methods such as extrusion molding, injection molding, compression molding, or sheet blowing, together with a suitable polymer matrix, to form a homogenous composite.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: June 15, 1993
    Assignee: Neste Oy
    Inventors: Jan-Erik Osterholm, Jukka Laakso, Sari Karjalainen, Pirjo Mononen
  • Conductive plastic composites
    Patent number: 5151221
    Abstract: The invention relates to a conductive polymer composite wherein the internally conductive polymer component consists of a polymer of a 3-substituted thiophene, the polymer being doped with a suitable electron acceptor or electron emitter compound. The polymer composite is prepared by processing in molten state by various methods such as extrusion molding, injection molding, compression molding, or sheet blowing, together with a suitable polymer matrix, to form a homogenous composite.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: September 29, 1992
    Assignee: Berggren Oy Ab
    Inventors: Jan-Erik Osterholm, Jukka Laakso, Sari Karjalainen, Pirjo Mononen
  • Electrically conducting polyaniline: method for emulsion polymerization
    Patent number: RE37370
    Abstract: A method of emulsion polymerization of aniline or substituted anilines for making substituted or unsubstituted homopolymers and co-polymers of aniline. The method includes formation of an emulsion of aniline monomers, polar solvent, non-polar or weakly polar solvent and functionalized protonic acid, which is selected for its ability to perform two functions: acting as a surfactant and acting as a protonating agent (dopant) in producing an electrically conducting polymer. Then, an oxidant is added to polymerize the ingredients of the emulsion. This method provides polyaniline particles of highly crystalline and oriented morphologies of controlled aspect ratios.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 18, 2001
    Assignee: Neste Oy
    Inventors: Yong Cao, Jan-Erik Österholm