Patents by Inventor Wolfgang Schmut

Wolfgang Schmut 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).

  • Patent number: 4179428
    Abstract: Process for producing water-emulsifiable paint binders based on select blends of alkyd resins and the improved emulsifiable paint binders therefrom are described. 30 to 75 percent by weight of aminoaldehyde resin is first reacted with 25 to 70 percent by weight of polyethylene glycols having an average molecular weight of from 500 to 3,000. Thereafter, 5 to 30 percent by weight of the polyethylene glycol modified aminoaldehyde resin is reacted with a blend of alkyd resins, one of the alkyd resins of the blend having a low acid number and another of the alkyd resins of the blend having a high acid number. The co-condensate of modified aminoaldehyde resin and alkyd resins when emulsified in water provides an emulsion with fine particles and excellent stability, rendering the emulsion particularly suitable for use in stoving paints.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: December 18, 1979
    Assignee: Vianova Kunstharz, A.G.
    Inventors: Bertram Zuckert, Wolfgang Schmut, Klaus Behmel
  • Patent number: 4132687
    Abstract: Nonionically/cationically stabilized aqueous emulsions of paint binders for use in stoving coating compositions and a process of producing such emulsions is described. The nonionic and cationic stabilization of the emulsion is accomplished by the inclusion in the binders of from about 1 - 20 percent by weight of nonionic structural units of the formula--O--[CH.sub.2 -- CH.sub.2 -- O].sub.n.sup.--n being an integer of from about 5 - 100, and 0.05 - 3 moles/kg of oxazoline structural units of the formula ##STR1## Coating compositions using the emulsion when applied to a surface as a film and thermally cured possess improved properties.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: January 2, 1979
    Assignee: Vianova Kunstharz, A.G.
    Inventors: Klaus Behmel, Wolfgang Schmut, Bertram Zuckert
  • Patent number: 3979346
    Abstract: Emulsion systems for preparing aqueous dispersions of alkyd resins; aqueous dispersions of alkyd resins, and a process of making the dispersions are described. The emulsion system comprises an aqueous medium containing 0.5 to 3 percent by weight ammonia and (A) at least one non-ionic emulsifier, the hydrophobic part containing two or more radicals of unsaturated fatty acid and/or fatty alcohol with an iodine number of between 130 and 200, and the hydrophilic part containing polyethylene glycol chains and/or monomethoxypolyethylene glycol chains with from 6 to 100 ethylene oxide units; and (B) at least one anionic emulsifier, the hydrophobic part containing two or more radicals of unsaturated fatty acid and/or fatty alcohol with an iodine number of between 130 and 200, and the hydrophilic part including carboxylic groups. In accordance with the process for dispersing alkyd resins, the alkyd resin is dispersed in water containing 0.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: September 7, 1976
    Assignee: Vianova-Kunstharz A.G.
    Inventors: Bertram Zuckert, Wolfgang Schmut