Patents by Inventor Joaquin P. Perez

Joaquin P. Perez 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).

  • Silicates with high ion exchange capacity derived from sepiolite and processes for their production
    Patent number: 4542002
    Abstract: Silicate having high ion exchange capacity are obtained by reacting sepiolites with a base, preferably a strong base in the presence of a polar liquid at a temperature, preferably elevated, and for a period sufficient to increase the ion exchange capacity to at least 50 meq. per 100 g, more preferably at least 100 meq. per 100 g. In the preferred form, the reaction is carried out at above 100.degree. C. in an autoclave.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: September 17, 1985
    Assignee: Synthesis Engineering Ltd.
    Inventors: Avelino C. Corma, Amparo C. Mifsud, Joaquin P. Perez