Patents by Inventor Rene Kierkels

Rene Kierkels 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 retardant compositions
    Patent number: 7138448
    Abstract: Organic polymer substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation of a mixture of (i) at least one melamine based flame retardant and (ii) at least one flame retardant selected from the group consisting of the organohalogen and phosphorus containing flame retardants. Further optional flame retardants include antimony compounds and sterically hindered amines.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 21, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Nikolas Kaprinidis, Nicola Lelli, Rene Kierkels
  • Flame retardant compositions
    Publication number: 20040138351
    Abstract: Organic polymer substrates, for example polyolefins such as polypropylene, can be made flame retardant by the incorporation of a mixture of (i) at least one melamine based flame retardant and (ii) at least one flame retardant selected from the group consisting of the organohalogen and phosphorus containing flame retardants. Further optional flame retardants include antimony compounds and sterically hindered amines.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 15, 2004
    Inventors: Nikolas Kaprinidis, Nicola Lelli, Rene Kierkels