Patents by Inventor Anne P. Noonan

Anne P. Noonan 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).

  • Trityl chloride recovery
    Patent number: 8153849
    Abstract: Methods of recovering a triarylmethyl halide from a sucrose derivatization process include the steps of (a) forming a mixture including 1) a triarylmethylated sucrose derivative including at least one triarylmethyl substituent and at least one acyl substituent on the sucrose, 2) triarylmethylated sucrose ester byproducts, and 3) an amine; (b) separating from the output of step (a) i) the triarylmethylated sucrose derivative, and ii) a mixture including the triarylmethylated sucrose ester byproducts and the amine; (c) removing the amine from the mixture of step (b) ii); (d) contacting the product of step (c) with hydrogen halide to cleave triarylmethyl groups and thereby form a crude triarylmethyl halide component; (e) contacting the crude triarylmethyl halide component with hydrogen halide to form a purified triarylmethyl halide component; and (f) recovering the triarylmethyl halide from the output of step (e).
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: April 10, 2012
    Assignee: Tate & Lyle Technology Ltd.
    Inventors: Stephen C. Scherrer, Anne P. Noonan, Thomas K. Hutton
  • Trityl chloride recovery
    Publication number: 20080234526
    Abstract: Methods of recovering a triarylmethyl halide from a sucrose derivatization process include the steps of (a) forming a mixture including 1) a triarylmethylated sucrose derivative including at least one triarylmethyl substituent and at least one acyl substituent on the sucralose, 2) triarylmethylated sucrose ester byproducts, and 3) an amine; (b) separating from the output of step (a) i) the triarylmethylated sucrose derivative, and ii) a mixture including the triarylmethylated sucrose ester byproducts and the amine; (c) removing the amine from the mixture of step (b) ii); (d) contacting the product of step (c) with hydrogen halide to cleave triarylmethyl groups and thereby form a crude triarylmethyl halide component; (e) contacting the crude triarylmethyl halide component with hydrogen halide to form a purified triarylmethyl halide component; and (f) recovering the triarylmethyl halide from the output of step (e).
    Type: Application
    Filed: December 4, 2007
    Publication date: September 25, 2008
    Inventors: Stephen C. Scherrer, Anne P. Noonan, Thomas K. Hutton
  • Process for the manufacture of tetrabromobisphenol-A with co-production of n-propyl bromide
    Patent number: 6049014
    Abstract: A process for producing n-propyl bromide during the bromination of bis- or trisphenols uses non-aqueous n-propanol as the bromination solvent, providing salable yields of n-propyl bromide to accompany the brominated bisphenol or trisphlenol.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: April 11, 2000
    Assignee: Great Lakes Chemical Corporation
    Inventors: Anne P. Noonan, Stephen C. Scherrer