Patents by Inventor Eduard Heim

Eduard Heim 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).

  • Preparation of resilient melamine foams
    Patent number: 4666948
    Abstract: Resilient foams based on melamine resins are prepared by foaming an aqueous solution which contains a melamine/formaldehyde precondensate, an emulsifier, a volatile blowing agent and a curing agent and then curing the foam. In this process, from 0.2 to 4% by weight of an alkali metal, alkaline earth metal or aluminum salt of an organic, preferably polybasic acid, of a polyphosphoric acid or of a boron acid are added to the aqueous solution.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: May 19, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank P. Woerner, Peter Neumann, Harald Mahnke, Josef Lamprecht, Dieter Horn, Gerhard Turznik, Friedrich Kraus, Hanshelmut Kaeppel, Eduard Heim