Patents by Inventor Wilfried Roschke

Wilfried Roschke 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).

  • Manufacture of polyester imide dispersions
    Patent number: 3966655
    Abstract: Aqueous polyester imide dispersions are prepared by allowing molten polyester imide to solidify and then comminuting it in the dry state to a particle size of 100 .mu.m or less, whereupon the particles are milled in water to a particle size of less than 5 .mu.um. The dispersions may be used for the manufacture of heat-resistant bonds and impregnations and for electrical insulation of metallic conductors. m.
    Type: Grant
    Filed: October 10, 1974
    Date of Patent: June 29, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Jenoe Kovacs, Hans Jung, Matthias Marx, Herbert Spoor, Wilfried Roschke