Patents by Inventor Pauli Kirmanen

Pauli Kirmanen 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).

  • Conductive plastics material and a method for its preparation
    Patent number: 5585038
    Abstract: The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficiently high conductivity level, and which is suitable, for example, for being melt processed in conventional plastics processing apparatus. The acidity of the conductive polymer can be reduced by having the conductive polymer contain both a metal compound and an additionally neutralizing compound. The obtained conductive polymer material, having a pH value of approximately 3-8, can be mixed with an insulating polymer to produce a conductive plastics mixture. The invention also relates to a method of preparing a conductive polymer that is more processable by incorporating therein a plasticizing agent selected from the group consisting of water, a C.sub.1 -C.sub.3 alcohol, and mixtures thereof.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: December 17, 1996
    Assignee: Neste Oy
    Inventors: Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo K arn a, Jukka Laakso, Heikki Ruohonen, Kimmo V akiparta, Olli Ikkala, Hannele J arvinen
  • Conductive plastics material and a method for its preparation
    Patent number: 5585040
    Abstract: The invention relates to a conductive polymer complex which contains a polyaniline or derivative thereof doped with a protonic acid. By the method according to the invention, a conductive polymer is obtained having substantially reduced acidity, sufficiently high conductivity level, and which is suitable, for example, for being melt processed in conventional plastics processing apparatus. The acidity of the conductive polymer can be reduced by having the conductive polymer contain both a metal compound and an additionally neutralizing compound. The obtained conductive polymer material, having a pH value of approximately 3-8, can be mixed with an insulating polymer to produce a conductive plastics mixture. The invention also relates to a method of preparing a conductive polymer that is more processable by incorporating therein a plasticizing agent selected from the group consisting of water, a C.sub.1 -C.sub.3 alcohol, and mixtures thereof.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 17, 1996
    Assignee: Neste Oy
    Inventors: Pauli Kirmanen, Esko Savolainen, Esa Virtanen, Toivo Karna, Jukka Laakso, Heikki Ruohonen, Kimmo Vakiparta, Olli Ikkala, Hannele Jarvinen