Patents by Inventor Sebastian Harold

Sebastian Harold 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).

  • Phosphorous-modified coating compositions, a process for their preparation, and their use as an intumescent coating
    Patent number: 5759692
    Abstract: The invention relates to expandable, halogen-free, flame-retardant coating compositions comprising epoxy resins, polyphosphoric esters and a curing agent, which composition comprises from 75 to 95 parts by weight of epoxy resin and from 5 to 25 parts by weight of polyphosphoric ester and wherein the overall weight ratio of epoxy resin and polyphosphoric ester to curing agent is (1.1 to 10) to 1. The invention likewise relates to a process for preparing such expandable, halogen-free coating flame-retardant, compositions comprising epoxy resins and polyphosphoric esters and a curing agent, and to their use, in particular as an intumescent coating.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: June 2, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Scholz, Sebastian Harold, Wolf-Dieter Pirig