Patents by Inventor Richard A. Szarz

Richard A. Szarz 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 manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound
    Patent number: 4814012
    Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: March 21, 1989
    Assignee: American Cyanamid Company
    Inventors: Albert P. Paul, Richard A. Szarz, Roger J. Card
  • Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound
    Patent number: 4711669
    Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.
    Type: Grant
    Filed: November 5, 1985
    Date of Patent: December 8, 1987
    Assignee: American Cyanamid Company
    Inventors: Albert P. Paul, Richard A. Szarz, Roger J. Card