Patents by Inventor Erik M. Larsson

Erik M. Larsson 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).

  • Ester of monoperoxy oxalic acid as polymerization initiators
    Patent number: 5037915
    Abstract: New dialkyl esters of monoperoxyoxalic acid which have a tertiary alkyl group in the perester part of the molecule while the other alkyl group is a long-chain, primary alkyl group. The compounds give rise to radicals at heating and are useful as initiators for the polymerization of ethylenically unsaturated monomers, particularly for the polymerization of vinyl chloride.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: August 6, 1991
    Assignee: Berol Nobel AB
    Inventors: Claes O. A. Lundin, Erik M. Larsson, Bjorn J. E. Akermark
  • Peresters, their preparation and use as polymerization initiators
    Patent number: 4859794
    Abstract: New dialkyl esters of monoperoxyoxalic acid which have a tertiary alkyl group in the perester part of the molecule while the other alkyl group is a long-chain, primary alkyl group. The compounds give rise to radicals at heating and are useful as initiators for the polymerization of ethylenically unsaturated monomers, particularly for the polymerization of vinyl chloride.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: August 22, 1989
    Assignee: Berol Nobel Nacka AB
    Inventors: Claes O. A. Lundin, Erik M. Larsson, Bjorn J. E. Akermark