Patents by Inventor Mohamad A. Dehyar

Mohamad A. Dehyar 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).

  • Use of comb-branched copolymers in gypsum compositions
    Patent number: 6527850
    Abstract: A gypsum composition suitable for use in the manufacture of construction materials is provided. The gypsum composition includes gypsum, water, and a dispersant formulation comprising an acrylic/polyether comb-branched copolymer. A method of making a gypsum composition is also provided. The method includes mixing together, in any combination, gypsum, water, and a dispersant formulation comprising an acrylic/polyether comb-branched copolymer. A wallboard is provided including two sheets of board paper, and a gypsum core between the sheets of board paper.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: March 4, 2003
    Assignee: Arco Chemical Technology L.P.
    Inventors: Steven A. Schwartz, Mohamad A. Dehyar
  • Use of comb-branched copolymers in gypsum compositions
    Publication number: 20030019401
    Abstract: A gypsum composition suitable for use in the manufacture of construction materials is provided. The gypsum composition includes gypsum, water, and a dispersant formulation comprising an acrylic/polyether comb-branched copolymer. A method of making a gypsum composition is also provided. The method includes mixing together, in any combination, gypsum, water, and a dispersant formulation comprising an acrylic/polyether comb-branched copolymer. A wallboard is provided including two sheets of board paper, and a gypsum core between the sheets of board paper.
    Type: Application
    Filed: April 11, 2001
    Publication date: January 30, 2003
    Applicant: ARCO Chemical Technology L.P.
    Inventors: Steven A. Schwartz, Mohamad A. Dehyar