Patents by Inventor Claus Godau

Claus Godau 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).

  • Stable aqueous epoxy resin dispersion, process for the preparation thereof and use thereof
    Patent number: 4987163
    Abstract: The invention relates to a stable epoxy resin dispersions and also a process for the preparation thereof and the use thereof, in particular for coatings. The epoxy resin dispersions which are remarkable, in particular, for good storage stability with a low content of organic solvents at the same time and little tendency to skin formation and yield coatings with good surface properties, contain, in addition to water, optionally small quantities of organic solvents and also optionally usual additives, as an essential constituent a condensation product of(a) 50 to 80% by weight of an epoxy compound containing at least two epoxy groups per molecule and having an epoxy equivalent to of 100 to 2,000.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: January 22, 1991
    Assignee: Hoechst AG
    Inventors: Wilhelm Becker, Claus Godau, Dieter Dreischhoff
  • Stable aqueous epoxy resin dispersion, process for the preparation thereof and use thereof
    Patent number: 4886845
    Abstract: The invention relates to stable epoxy resin dispersions and also a process for the preparation thereof and the use thereof, in particular for coatings.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: December 12, 1989
    Assignee: Hoechst AG
    Inventors: Wilhelm Becker, Claus Godau
  • Curing components for synthetic resins and their use
    Patent number: 4859788
    Abstract: Amino group containing curing component (A) for compounds (B) which contain epoxy or 1,3-dioxolan-2-one groups, comprising a reaction product of (a.sub.1) active CH alkyl esters of isocyanate adducts thereof with (a.sub.2) polyamines.Mixtures of (A) and (B) with or without diluents and additives give rapid curing even at low temperatures and high atmospheric humidity and are suitable in particular for paint formulations.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: August 22, 1989
    Assignee: Hoechst AG
    Inventors: Gerhard Brindopke, Claus Godau, Walter Weber