Patents by Inventor Sera S. Abed-Ali

Sera S. Abed-Ali 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).

  • Moiety for selective separation
    Patent number: 4908135
    Abstract: New C-substituted crown ethers such as ##STR1## are made by reacting a 1,2-diol (chain length m'4) with ClCH.sub.2 --(CH.sub.2 --O--CH.sub.2 --).sub.n+1 CH.sub.2 Cl.These compounds have a stronger affinity for secondary amines than for tertiary amines and therefore may be used to separate mixtures, especially when attached to polysiloxane backbones or substrates via their unsaturated bond.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: March 13, 1990
    Assignee: National Research Development Corporation
    Inventors: Brian J. Brisdon, Richard England, Sera S. Abed-Ali
  • Moiety for selective separation
    Patent number: 4900845
    Abstract: New C-substituted crown ethers such as ##STR1## are made by reacting a 1,2-diol (chain length m+4) with ClCH.sub.2 --(CH.sub.2 --O--CH.sub.2 --).sub.n+1 CH.sub.2 Cl.These compounds have a stronger affinity for secondary amines than for tertiary amines and therefore may be used to separate mixtures, especially when attached to polysiloxane backbones or substrates via their unsaturated bond.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: February 13, 1990
    Assignee: National Research Development Corporation
    Inventors: Brian J. Brisdon, Richard England, Sera S. Abed-Ali