Patents by Inventor Alfred Guthmann

Alfred Guthmann 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).

  • Molding materials based on curable unsaturated polyester resins and having a long shelf life
    Patent number: 4829106
    Abstract: Molding materials having a long shelf life consist of an unsaturated polyester resin, monomers, conventional additives and an inhibitor combination comprising a phenol or quinone, a phosphine or an ester of phosphorous acid, and a metal cation in the form of a salt or a complex which is soluble in the polyester resin.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: May 9, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Jan Holoch, Alfred Guthmann, Hans-Juergen Christoph, Heinz B. Kemper
  • Storage stable dispersions of aromatic polyesters in polyhydroxyl compounds and their preparation
    Patent number: 4435537
    Abstract: The subject invention relates to storage stable dispersions comprising certain aromatic polyesters dispersed in certain polyhydroxyl compounds and their process of preparation. The dispersions are useful for the preparation of polymers containing urethane and/or isocyanurate linkages.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: March 6, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Horn, Anton Hesse, Walter Heckmann, Ulrich Lebert, Alfred Guthmann, Matthias Marx
  • Manufacture of self-extinguishing urethane group-containing polyisocyanurate foams
    Patent number: 4035313
    Abstract: Self-extinguishing urethane group containing polyisocyanurate foams are prepared by reacting a polyisocyanate with a polyesterol obtained by condensing an aliphatic dicarboxylic acid with a mixture of an aliphatic diol and N,N'-bis-(ethanol-2)-diaminooctachlorodiphenyl.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: July 12, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Georg Falkenstein, Alfred Guthmann, John Hutchison, Peter Weyland, Gerd Blinne