Patents by Inventor Gerard V. Smith

Gerard V. Smith 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).

  • Process of preparing para substituted phenylamines
    Patent number: 5689007
    Abstract: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: November 18, 1997
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell Edward Malz, Gerard V. Smith, Mark Peter Ferrandino, Ruozhi Song, Chung-Yuan Lin, Franklin Herbert Barrows
  • Process of preparing para substituted phenylamines
    Patent number: 5574187
    Abstract: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: November 12, 1996
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell E. Malz, Gerard V. Smith, Mark P. Ferrandino, Ruozhi Song, Chung-Yuan Lin, Franklin H. Barrows
  • Process of preparing para phenylamines
    Patent number: 5420354
    Abstract: A process of preparing para phenylenediamines, such as, p-aminodiphenylamine. The process involves contacting nitrobenzene or a substituted derivative thereof with hydrogen and an amine, such as aniline, in the presence of a hydrogenation catalyst, a hydrogenation inhibitor, and an acid cocatalyst under reaction conditions.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: May 30, 1995
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Russell E. Malz, Gerard V. Smith, Mark P. Ferrandino, Ruozhi Song