Patents by Inventor Nazir Ahmed

Nazir Ahmed 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).

  • Styrenic polymer composition
    Patent number: 5654365
    Abstract: Syndiotactic polystyrene can be impact-modified by a blend of (a) polystyrene-hydrogenated polybutadiene block copolymers and (b) one or more core/shell modifiers based on a lightly or non-crosslinked rubber core, and with at least one shell or intermediate shell stage which is predominantly polystyrene, to produce a material of higher impact strength than the better value of either additive singly at the same total impact modifier level.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: August 5, 1997
    Assignee: Rohm and Haas Company
    Inventors: Stephen Havriliak, Jr., Nazir Ahmed Memon, Choung-Houng Lai