Patents by Inventor William Peter Gergen

William Peter Gergen 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).

  • Process to prepare two phase foam compositions and two phase foam compositions
    Patent number: 5646193
    Abstract: A process is provided for the production of a porous crosslinked polymeric foam comprising the steps of: (a) providing a first water-in-oil emulsion comprising (i) a first mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a multifunctional unsaturated crosslinking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase (iii) an effective amount to produce the water-in-oil emulsion of a first surfactant, and (iv) a first polymerization initiator; (b) providing a second water-in-oil emulsion comprising (i) a mixture of polymerizable monomers comprising at least one oil-soluble vinyl monomer and from about 2 to about 70 weight percent, based on the mixture, of a second multifunctional unsaturated crosslinking monomer, (ii) at least 70 weight percent, based on the emulsion, of water as the internal phase (iii) an effective amount to produce the water-in-oil emulsion of a
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: July 8, 1997
    Assignee: Shell Oil Company
    Inventors: Thomas Fairchild Brownscombe, Ronald Marshall Bass, Pui Kwan Wong, George Constantine Blytas, William Peter Gergen, Maryanne Mores