Patents by Inventor Kaluachchl Gamage Karnika De Silva

Kaluachchl Gamage Karnika De Silva 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).

  • Fire retardant polypropylene
    Patent number: 9394423
    Abstract: A fire retardant material comprising preferably at least 60% polypropylene having a flexural modulus of 2.8 GPa or above and a fire retardancy rating of UL-94 V-1 or better. The fire retardant material is preferably halogen and glass-fiber free. It may contain a fire retardant agent (e.g. a polymeric APP-crystal phase II type fire retardant fire retardant) and a filler. Also methods for producing such a fire retardant material.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: July 19, 2016
    Assignee: Auckland Uniservices Limited
    Inventors: Allan James Easteal, Ralph Cooney, Kaluachchl Gamage Karnika De Silva, Debes Bhattacharrya