Patents by Inventor Horst Lawonn

Horst Lawonn 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).

  • Low-shrink unsaturated polyester molding compositions
    Patent number: 4172102
    Abstract: Unsaturated polyester molding compositions which contain ethylenically unsaturated polyesters, copolymerizable ethylenically unsaturated monomeric compounds and a polyalkylene ether copolymer have improved shelf life, can be cured with little shrinkage and after curing give a smooth surface with high gloss.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: October 23, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Hoene, Anton Hesse, Kurt Demmler, Horst Lawonn
  • Manufacture of molding compositions based on unsaturated polyester resins
    Patent number: 4110278
    Abstract: Curable unsaturated quick-thickening polyester resin molding compositions are obtained by adding special onium salts as thickening accelerators to unsaturated polyester resins.
    Type: Grant
    Filed: November 11, 1975
    Date of Patent: August 29, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Kurt Demmler, Horst Lawonn, Anton Hesse