Patents by Inventor Alec S. Cobb

Alec S. Cobb 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 for the production of sulfenamides
    Patent number: 4461897
    Abstract: Benzothiazole-2-sulfenamides are prepared by reacting a 2-mercaptobenzothiazole and a primary or secondary amine with oxygen in the presence of a catalyst, for example a metal phthalocyanine, in a reaction medium consisting of (i) a mixture of the amine and water in which the amount of water at the outset of the reaction is from 0.2 to 20% by weight of the mixture, or (ii) a mixture as defined in (i) diluted with an inert organic solvent miscible with the mixture, in a proportion of up to two parts by weight of the inert organic solvent per part by weight of the mixture.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: July 24, 1984
    Assignee: Monsanto Europe S.A.
    Inventors: Alec S. Cobb, David J. Williams