Patents by Inventor Jerry D. DeVrieze

Jerry D. DeVrieze 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).

  • Dust control of absorbent polymers
    Patent number: 6090875
    Abstract: The subject invention provides water-swellable polymer compositions having reduced dusting tendencies, i.e., reduced amounts of unassociated dust having a maximum diameter less than or equal to 10 microns and/or the tendency to generate reduced amounts of unassociated dust having a maximum diameter less than or equal to 10 microns upon attrition and a process for preparing such compositions. Hydrophobic dedusting agents are used to achieve the above while substantially maintaining or increasing the surface tension of an aqueous fluid in equilibrium with the polymer and air.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: July 18, 2000
    Assignee: The Dow Chemical Company
    Inventors: Thomas L. Staples, Jerry D. DeVrieze
  • Novel N-(ar-vinylbenzyl)aziridines
    Patent number: 3996204
    Abstract: Novel N-(m or p-vinylbenzyl)aziridines are disclosed which correspond to the structural formula ##EQU1## wherein R and R' are hydrogen or lower alkyl. They are highly reactive difunctional monomers which can be homopolymerized or copolymerized to form many useful polymers.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: December 7, 1976
    Assignee: The Dow Chemical Company
    Inventors: Donald A. Tomalia, Jerry D. DeVrieze