Patents by Inventor Bliss S. Phillips

Bliss S. Phillips 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).

  • Low pH preparation of cationic starches and flours
    Patent number: 4127563
    Abstract: A novel process is disclosed for preparing cationic starches and flours by reacting starch-containing materials in a dry state with a halohydrin at a pH of 9 or below without the necessity for subsequent alkali neutralization or washing. The resultant products have cationic properties remarkably superior to prior art cationic starches over a broad range of acid and alkaline pH's. In the manufacture of paper, they serve as excellent pigment retention and dry-strength improvement agents.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: November 28, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John C. Rankin, Bliss S. Phillips