Patents by Inventor Shaun Raymond Rinehimer

Shaun Raymond Rinehimer 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).

  • Fluorosurfactant with disproportionate effect
    Patent number: 7964552
    Abstract: This invention relates to surfactant compositions comprising a fluorosurfactant and a siloxane surfactant wherein the fluorosurfactant exhibits a disproportionate effect upon the resulting surfactant composition's ability to lower equilibrium surface tension. The fluorosurfactants and siloxane surfactants identified by the present invention exhibit a desirable disproportionate effect from the fluorosurfactant acting upon the resulting surfactant composition's ability to lower equilibrium surface tension. Because of this disproportionate effect, surfactant compositions of the present invention with no more than 21 weight percent fluorosurfactant have nearly identical ability to lower equilibrium surface tensions compared with surfactant compositions having higher amounts of fluorosurfactant.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 21, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Axel Hans-Joachim Herzog, Shaun Raymond Rinehimer
  • Fluorosurfactant with disproportinate effect
    Publication number: 20080145329
    Abstract: This invention relates to surfactant compositions comprising a fluorosurfactant and a siloxane surfactant wherein the fluorosurfactant exhibits a disproportionate effect upon the resulting surfactant composition's ability to lower equilibrium surface tension. The fluorosurfactants and siloxane surfactants identified by the present invention exhibit a desirable disproportionate effect from the fluorosurfactant acting upon the resulting surfactant composition's ability to lower equilibrium surface tension. Because of this disproportionate effect, surfactant compositions of the present invention with no more than 21 weight percent fluorosurfactant have nearly identical ability to lower equilibrium surface tensions compared with surfactant compositions having higher amounts of fluorosurfactant.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 19, 2008
    Inventors: Axel Hans-Joachim Herzog, Shaun Raymond Rinehimer
  • Phosphate fluorosurfactant and siloxane surfactant
    Publication number: 20080146820
    Abstract: This invention relates to surfactant compositions comprising a phosphate fluorosurfactant and a siloxane surfactant wherein the surfactant composition's ability to lower equilibrium surface tension exceeds that of either the phosphate fluorosurfactant or the siloxane surfactant. Because of the synergistic interaction of the phosphate fluorosurfactant and the siloxane surfactant, it is possible to use only small amounts of the more expensive fluorosurfactant in the surfactant composition of the present invention while preserving or improving the ability to lower the equilibrium surface tension of a liquid, such as water.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 19, 2008
    Inventors: Axel Hans-Joachim Herzog, Shaun Raymond Rinehimer