Patents by Inventor Randall J. Normand

Randall J. Normand 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).

  • Preparation of chlorinated polyolefins
    Patent number: 4631175
    Abstract: Method and apparatus for the chlorination of polyolefins in aqueous suspension. The method includes subjecting the suspension of the polyolefin to a submerged jet of chlorine gas at a velocity sufficient to atomize the chlorine; i.e., at least about sixty feet per second. By this method a very intimate mixture of chlorine and aqueous suspension is formed, whereby the chlorination proceeds more efficiently and at a lower chlorine pressure. Further advantages include a more uniformly-substituted product.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: December 23, 1986
    Assignee: The Dow Chemical Company
    Inventors: James B. Akers, Jr., Douglas E. Leng, Randall J. Normand
  • Preparation of chlorinated polyolefins
    Patent number: 4524189
    Abstract: Method and apparatus for the chlorination of polyolefins in aqueous suspension. The method includes subjecting the suspension of the polyolefin to a submerged jet of chlorine gas at a velocity sufficient to atomize the chlorine; i.e., at least about sixty feet per second. By this method a very intimate mixture of chlorine and aqueous suspension is formed, whereby the chlorination proceeds more efficiently and at a lower chlorine pressure. Further advantages include a more uniformly-substituted product.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: June 18, 1985
    Assignee: The Dow Chemical Company
    Inventors: James B. Akers, Jr., Douglas E. Leng, Randall J. Normand