Patents by Inventor Robert O. Yates

Robert O. Yates 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).

  • Aqueous dispersions of hydrophobic polymer particles using surface active polymers
    Patent number: 4022737
    Abstract: Finely divided particles of normally solid addition polymer, such as particles of polyvinylidene fluoride having a particle size of from about 0.1 to about 60 microns in average diameter, and which are not stably dispersible in water in the absence of extraneous surface active agent, are stably dispersed by means of a carboxy-functional copolymer containing at least 30% by weight of copolymerized monomer providing terminal hydrocarbon groups having at least 8 carbon atoms, the copolymer being dissolved in the aqueous medium by salt formation with a base.
    Type: Grant
    Filed: August 20, 1971
    Date of Patent: May 10, 1977
    Assignee: DeSoto, Inc.
    Inventors: Kazys Sekmakas, Robert O. Yates