Patents by Inventor Susanne Rothkamp

Susanne Rothkamp 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).

  • Intumescent coating stable under tropical conditions
    Patent number: 6054513
    Abstract: The invention relates to a fireproof coating which forms an insulating layer and is based on carbon-forming substances forming a foam layer in the case of a fire, film-forming binders, blowing agents and conventional assistants and additives, wherein said coating contains, as blowing agents, a melamine salt and/or guanidine salts and/or microencapsulated melamine.The fireproof coating forming an insulating layer and according to the invention is stable in particular under tropical conditions (up to 100% rel. humidity, about 75.degree. C.), i.e. it releases only very little NH.sub.3.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: April 25, 2000
    Assignee: Clariant GmbH
    Inventors: Wolf-Dieter Pirig, Susanne Rothkamp, Volker Thewes