Patents by Inventor Rajal M. Vyas

Rajal M. Vyas 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).

  • Patent number: 4330672
    Abstract: A process for preparing fine powder particles of thermoplastic elastomer polymer is disclosed. This process comprises suspending thermoplastic elastomer solids in a poor solvent for the polymer using mild agitation and then admixing this suspension with a non-solvent for the polymer in the presence of high shear mixing. Powder particles having an average diameter of less than about 100 microns are obtained.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: May 18, 1982
    Assignee: Celanese Corporation
    Inventors: Martin J. Hannon, Rajal M. Vyas, Rudolph R. Schwarz