Patents by Inventor Rhonda C. Posey

Rhonda C. Posey 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 for preparing quaternary alkammonium halides
    Patent number: 8217201
    Abstract: Alkylammonium halides of the formula are described wherein the alkylammonium halide is prepared by reacting an alkylamine hydrohalide salt and its corresponding free amine with at least two equivalents of an epihalohydrin.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: July 10, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Joseph L. Deavenport, Rhonda C. Posey
  • PROCESS FOR PREPARING QUATERNARY ALKAMMONIUM HALIDES
    Publication number: 20100160684
    Abstract: Alkylammonium halides of the formula are described wherein the alkylammonium halide is prepared by reacting an alkylamine hydrohalide salt and its corresponding free amine with at least two equivalents of an epihalohydrin.
    Type: Application
    Filed: August 13, 2007
    Publication date: June 24, 2010
    Inventors: Joseph L. Deavenport, Rhonda C. Posey
  • Process for preparing dihydroxytrialkylammonium halides and products thereof
    Patent number: 7541496
    Abstract: Compositions and methods for making compositions including a quaternary trialkylammonium halide compound are described. Compositions follow the formula: wherein the R1 groups are each individually selected from alkyl groups having from 1 to 12 carbon atoms; wherein the R2, R3, and R4 groups are each individually selected from hydrogen, hydroxide, alkyl groups having from 1 to 12 carbon atoms, and hydroxy alkyl groups having from 1 to 12 carbon atoms; wherein y ranges from 0 to 12; wherein X? is selected from fluoride, chloride, bromide, and iodide; wherein the quaternary trialkylammonium compound is present in an amount of at least 90 wt. percent; and wherein the composition comprises not greater than 4000 ppm of a trialkylamine or protonated form thereof.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: June 2, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Joseph L. Deavenport, Rhonda C. Posey, David A. Wilson