Patents by Inventor Andries Adriaan Volkers Volkers

Andries Adriaan Volkers Volkers 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 thermoplastic polymer composition, method of manufacture, and articles formed therefrom
    Patent number: 8771829
    Abstract: A thermoplastic polymer composition comprises a cyanophenyl endcapped polycarbonate, a potassium diphenyl sulphon-3-sulphonate; and brominated polycarbonate. In some embodiments, when the thermoplastic polymer composition is in the form of a 3 mm thick extruded sheet, the sheet has a smoke density of less than 200 at an exposure period of 240 seconds in accordance with the smoke density test as set forth in ASTM E662-06, and has no burning drips on the sheet for a duration of 10 minutes in accordance with the flammability test as set forth in NF-P-92-505.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: July 8, 2014
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Christianus Johannes Jacobus Maas, Hendrik Cornelus Jacobus de Nooijer, Vandita Pai-Paranjape, Srinivas Siripurapu, Joshua Arie van den Bogerd, Andries Adriaan Volkers Volkers