Patents by Inventor Rosemary Tingley

Rosemary Tingley 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 polymer formulation
    Patent number: 5342874
    Abstract: The invention describes a formulation for halogenated polymers without added antimony trioxide. The halogenated polymers contain a synergistic mix of flame retardants comprising 10-400 phv of an aluminum or magnesium hydroxide and 0.5-80 phv of trioxide or a metal stannate or hydroxystannate.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: August 30, 1994
    Assignee: Alcan International Limited
    Inventors: Dominic Chaplin, Rosemary Tingley