Patents by Inventor Carl-Johan Johansson

Carl-Johan Johansson 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).

  • Processable poly(hydroxy acids)
    Patent number: 6559244
    Abstract: A processable poly(hydroxy acid) composition which has been stabilized by adding to the polymer during the melt processing stage 0.05-3% by weight of a peroxy compound the degradation of which produces one or more acid radicals, and which has good melt strength and elasticity. The melt strength is high enough to produce films with conventional methods as the film blowing method.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: May 6, 2003
    Assignee: Neste Oy
    Inventors: Anders Sodergard, Johan-Fredrik Selin, Maria Niemi, Carl-Johan Johansson, Kersin Meinander
  • Chemically modified polyolefin
    Patent number: 4746704
    Abstract: The present invention relates to a chemically modified polyolefin exhibiting good adhesion to metals and other polar substances. The polyolefin has itaconic acid grafted thereto.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: May 24, 1988
    Assignee: Neste Oy
    Inventors: Christer Bergstrom, Barbro Bjorkvall, Bengt Stenlund, Jouko Huttunen, Carl-Johan Johansson