Patents by Inventor Todd A. ROBINSON

Todd A. ROBINSON 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).

  • Utilizing aTREF data with chemometric analysis for determining the types of polyethylene present in polymer blends and multilayer films
    Patent number: 11802865
    Abstract: A method of analyzing a polymer resin comprising: providing a polymer resin sample having two or more polymer components; subjecting the sample to aTREF analysis to yield aTREF elution trace by contacting the sample with aTREF solvent to form sample solution; introducing sample solution into aTREF column and allowing elution of polymer components at different elution rates along the column; eluting from the aTREF column an aTREF eluent comprising the polymer components eluting at different rates; and subjecting the aTREF eluent to IR detection to yield the aTREF elution trace; identifying the components of the sample to yield identified components by comparing the elution trace with an identification library that comprises a plurality of known polymer aTREF elution traces correlated with known polymer components characterized by identifying parameters (density, SCB, crystallization temperature, MI, HLMI, MWD); and quantifying each of the identified components to yield quantified polymer components via chemome
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: October 31, 2023
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: JaNeille K. Dixon, Todd A. Robinson, James A. Solis, Justin W. Kamplain
  • UTILIZING ATREF DATA WITH CHEMOMETRIC ANALYSIS FOR DETERMINING THE TYPES OF POLYETHYLENE PRESENT IN POLYMER BLENDS AND MULTILAYER FILMS
    Publication number: 20230204561
    Abstract: A method of analyzing a polymer resin comprising: providing a polymer resin sample having two or more polymer components; subjecting the sample to aTREF analysis to yield aTREF elution trace by contacting the sample with aTREF solvent to form sample solution; introducing sample solution into aTREF column and allowing elution of polymer components at different elution rates along the column; eluting from the aTREF column an aTREF eluent comprising the polymer components eluting at different rates; and subjecting the aTREF eluent to IR detection to yield the aTREF elution trace; identifying the components of the sample to yield identified components by comparing the elution trace with an identification library that comprises a plurality of known polymer aTREF elution traces correlated with known polymer components characterized by identifying parameters (density, SCB, crystallization temperature, MI, HLMI, MWD); and quantifying each of the identified components to yield quantified polymer components via chemome
    Type: Application
    Filed: December 27, 2021
    Publication date: June 29, 2023
    Inventors: JaNeille K. DIXON, Todd A. ROBINSON, James A. SOLIS, Justin W. KAMPLAIN