Patents by Inventor Mohammed Tzai

Mohammed Tzai 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).

  • Terpolymers of maleic anhydride, C.sub.1 -C.sub.5 alkyl vinyl ether and a C.sub.12 -C.sub.14 alpha-olefin, and crosslinked products thereof
    Patent number: 5034486
    Abstract: Terpolymers of maleic anhydride, a C.sub.1 -C.sub.5 alkyl vinyl ether and a C.sub.12 -C.sub.14 alpha-olefin, and crosslinked products thereof, are provided herein for use in thickener, adhesive, sunscreen, hair spray, and waterproofing compositions. The alpha-olefin comonomer is a hydrophobic, straight chain, unsaturated hydrocarbon such as dodecene or tetradecene, which is present in the terpolymer in predetermined amounts relative to the hydrophilic maleic anhydride component, to provide a terpolymer having a suitable HLB for these applications.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: July 23, 1991
    Assignee: GAF Chemicals Corporation
    Inventors: Mohammed Tzai, Krystyna Plochocka, Yoon T. Kwak, Thomas Rizzo