Patents Represented by Attorney Uwe T. Hirsch
  • Patent number: 5714156
    Abstract: The invention relates to an absorbent gelling material comprising a dry mixture of at least a first type of hydrogel-forming particles and a second type of hydrogel-forming particles. The absorbent gelling material in accordance with the invention is characterized in that the first type of hydrogel-forming particles has an Absorption Against Pressure value which is higher than the Absorption Against Pressure value of the second type of hydrogel-forming particles, the weight of the second type of hydrogel-forming particles forming at least 10% of the combined weight of the first and second type of hydrogel forming particles. The invention also relates to a method for making such material.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: February 3, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Manfred Plischke, Stephen Allen Goldman