Patents by Inventor Tomas J. Benavides

Tomas J. Benavides 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).

  • Anionic silicone defoamer
    Patent number: 4139546
    Abstract: An anionic silicone defoamer having the following general formula: ##STR1## wherein: R is alkyl;X is 1 to 20;Y is 1 to 10;Z is 2 to 4, and;M is a monovalent cation.The anionic silicone defoamer is made, for instance, by reacting dimethyldichlorosilane, trimethylchlorosilane, and beta-cyanoethyl methyldichlorosilane in the presence of aqueous sodium hydroxide. Dry detergent compositions containing the present anionic silicone composition exhibit reduced foaming, even after several months of storage.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: February 13, 1979
    Assignee: Witco Chemical Corporation
    Inventors: Paul D. Berger, Tomas J. Benavides