Patents by Inventor Alice Y. Romasn-Hess

Alice Y. Romasn-Hess 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).

  • Ionic superabsorbent polymers with enhanced swelling characteristics
    Patent number: 6855434
    Abstract: Ionic superabsorbent polymers having increased swelling capacity of salt-containing solutions are disclosed. The ionic superabsorbent polymers of the present invention contain an additive to increase the osmotic activity of the polymer in the presence of a salt-containing solution. The additive used in combination with the ionic superabsorbent polymer is capable of forming a zwitterion at a pH of from about 1 to about 9, has a dipole moment greater than that of water, and has a molecular weight less than about 10,000 grams/mole.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: February 15, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Alice Y. Romasn-Hess, Joseph R. Feldkamp