Patents by Inventor Mandy Jayne Herbert

Mandy Jayne Herbert 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).

  • Halogenated polymeric formulation containing divalent (hydroxy) stannate and antimony compounds as synergistic flame-retardants
    Patent number: 6245846
    Abstract: In PVC polymer formulations for sheathing for electric wires and cables, it has been determined that antimony trioxide and divalent metal (e.g. zinc) stannate or hydroxystannate cat provide a synergistic flame-retardant additive combination. In this invention, polymer formulations using this flame-retardant additive combination contain not more than 1.5 wt. % of antimony trioxide.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Alcan International Limited
    Inventors: Clare Daniels, Mandy Jayne Herbert, Michael Rai
  • Fire-resistant PVC formulation
    Patent number: 5891571
    Abstract: A fire-resistant polyvinyl chloride (PVC) formulation suitable for use as sheathing on electric wires and cables, contains 15-60 parts by weight per 100 parts by weight of PVC (phr) of a phosphate plasticize, 10-40 phr of a halogenated plasticize, 15-60 phr of aluminium trihydroxide, together with 5-20 phr of an additive combination of 10-90 wt% ofr antimony trioxide and 90-10 wt% of zinc stannate.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: April 6, 1999
    Assignee: Alcan International Limited
    Inventor: Mandy Jayne Herbert