Patents Represented by Attorney Gordon B. Seward

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  • Making nitrodiarylamines from formyl derivatives of aromatic amines and nitrohaloarenes by admixing with certain aqueous salt solutions
    Patent number: 4196146
    Abstract: Forming nitrodiarylamines by gradually admixing, at condensation temperature for forming a nitrodiarylamine, to a mixture of the formyl derivative of an aromatic amine and a nitrohalobenzene, eitherA. aqueous potassium carbonate, orB. aqueous potassium hydroxide and a member of the group consisting of potassium carbonate, tri-potassium phosphate, sodium tetraborate and potassium tetraborate and mixtures thereof, and concurrently removing water.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 1, 1980
    Assignee: Monsanto Company
    Inventors: Helmut L. Merten, Gene R. Wilder
  • Making a nitrodiarylamine by reacting an alkali metal salt of a formamide with a nitrohaloarene
    Patent number: 4187248
    Abstract: Preparation of a nitrodiarylamine from a nitrohaloarene and alkali metal salt of the formyl derivative of a primary aromatic amine is disclosed.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: February 5, 1980
    Assignee: Monsanto Company
    Inventors: Helmut L. Merten, Gene R. Wilder
  • Promoting the reaction of sodium salts of formyl derivatives of aromatic amines to form nitrodiarylamines
    Patent number: 4187249
    Abstract: Promoting the reaction of sodium salts of formyl derivatives of aromatic amines by compounds of potassium, cesium or rubidium to form nitrodiarylamines is disclosed.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: February 5, 1980
    Assignee: Monsanto Company
    Inventors: Otto W. Maender, Gene R. Wilder
  • Bis-(alkylaminophenoxy)alkanes as antidegradants for rubber
    Patent number: 4161474
    Abstract: Vulcanizable or vulcanized diene elastomers containing stabilizing amounts of certain bis-alkylaminophenoxyalkyl antidegradants show resistance to ozone attack. A novel class of bis-alkylaminophenoxyalkane compounds is also disclosed.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: July 17, 1979
    Assignee: Monsanto Company
    Inventors: Robert H. Campbell, Gene R. Wilder