Patents by Inventor Daniel Scharf

Daniel Scharf 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).

  • Flame-resistant polymeric compositions
    Patent number: 5116891
    Abstract: Flame-resistant polymeric compositions, preferably olefinic polymers and/or copolymers, containing 8 to 45% by weight of a flameproofing system. This flameproofing system comprises at least one phosphorus component and a monomeric triazinylpiperazine. The phosphours component is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate, while the triazinylpiperazine used is a pulverulent bistriazinylpiperazine.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: May 26, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Eberspach, Daniel Scharf, Manfred Lysek
  • Flame-retardant polymer compositions
    Patent number: 4957950
    Abstract: Flame-retardant polymer compositions contain a flame-retardant system consisting of a phosphorus/nitrogen-component, aluminum hydroxide, and a least one synergetically active component selected from the group consisting of organic nitrogen compounds, polyalcohols or derivatives thereof, the phosphorus/nitrogen-component being ammonium polyphosphate, if desired.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: September 18, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Staendeke, Daniel Scharf
  • Flame-retardant polymer compositions
    Patent number: 4853424
    Abstract: Flame-retardant polymer compositions containing a flame-retardant system consisting of a phosphorus/nitrogen-component and aluminum hydroxide.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: August 1, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Horst Staendeke, Daniel Scharf