Patents by Inventor Andrew David Child

Andrew David Child 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).

  • Method of enhancing the stability of conductive polymers
    Patent number: 5833884
    Abstract: A method of depositing a conductive polymer film on a textile fabric substrate is provided by the oxidative polymerization of a pyrrole compound in the presence of a dopant anion and a stabilizing agent having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from H, OH, and OR, and R is C.sub.1 -C.sub.8 alkyl; and R.sub.5 and R.sub.6 are independently selected from H, COOH and SO.sub.3 H.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 10, 1998
    Assignee: Milliken Research Corporation
    Inventor: Andrew David Child
  • Method of enhancing the stability of conductive polymers
    Patent number: 5716893
    Abstract: A method of depositing a conductive polymer film on a textile fabric substrate is provided by the oxidative polymerization of a pyrrole compound in the presence of a dopant anion and a stabilizing agent having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from H, OH, and OR, and R is C.sub.1 -C.sub.8 alkyl; and R.sub.5 and R.sub.6 are independently selected from H, COOH and SO.sub.3 H.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: February 10, 1998
    Assignee: Milliken Research Corporation
    Inventor: Andrew David Child