Patents by Inventor Stephanie Rollins Testerman

Stephanie Rollins Testerman 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).

  • Publication number: 20230406792
    Abstract: Disclosed is a process for preparing 2,2,4,4-tetramethylcyclobutane-1,3-diol by reacting 2,2,4,4-tetramethylcyclobutanedione with a secondary alcohol in the presence of a transfer hydrogenation catalyst.
    Type: Application
    Filed: November 30, 2021
    Publication date: December 21, 2023
    Applicant: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Robert Thomas Hembre, Scott Donald Barnicki, Robert Sterling Kline, Stephanie Rollins Testerman
  • Publication number: 20230382937
    Abstract: Processes are disclosed for preparing mixtures of ferrocene-based biphosphine ligands.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 30, 2023
    Applicant: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Stephanie Rollins Testerman, Jody Lee Rodgers, Michelle Nicole Tuttle
  • Publication number: 20230381764
    Abstract: Processes for preparing aldehydes from olefins under hydroformylation temperature and pressure conditions are disclosed. The processes include a step of contacting at least one olefin with hydrogen and carbon monoxide in the presence of at least one solvent and a transition metal-based catalyst composition comprising a ferrocene-based biphosphine ligand.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 30, 2023
    Applicant: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Stephanie Rollins Testerman, Jody Lee Rodgers, Michelle Nicole Tuttle
  • Publication number: 20230381763
    Abstract: Processes for preparing aldehydes from olefins under hydroformylation temperature and pressure conditions are disclosed. The processes include a step of contacting at least one olefin with hydrogen and carbon monoxide in the presence of at least one solvent and a transition metal-based catalyst composition comprising a bisphosphine ligand.
    Type: Application
    Filed: September 22, 2021
    Publication date: November 30, 2023
    Applicant: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Stephanie Rollins Testerman, Jody Lee Rodgers, Michelle Nicole Tuttle
  • Patent number: 9988329
    Abstract: A transfer-hydrogenation process for preparing a carbonyl compound and an alcohol compound comprises the steps of (a) contacting a first carbonyl compound with a first alcohol compound in the presence of a transfer-hydrogenation catalyst in a first reaction zone at conditions effective to form a second carbonyl compound from the first alcohol compound and a second alcohol compound from the first carbonyl compound, and (b) removing the second carbonyl compound from the first reaction zone during step (a). The first carbonyl compound is a saturated aldehyde or ketone, or an ?,?-unsaturated aldehyde or ketone. The first alcohol compound is a primary or secondary alcohol. The second alcohol compound is ?,?-saturated. The transfer-hydrogenation catalyst includes a Group 8 to 11 metal. This process is useful for preparing and higher value alcohols, such as butanol or 2-ethylhexanol, from the corresponding carbonyl compounds by engaging lower alcohol (C2-C4) feedstocks instead of hydrogen (H2).
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 5, 2018
    Assignee: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Robert Thomas Hembre, Scott Donald Barnicki, Robert Scott Huss, Xiaopeng Shan, Stephanie Rollins Testerman, Timothy Alan Upshaw, Dewey Wayne Fuller, Jr.
  • Patent number: 9493395
    Abstract: Disclosed is a process for preparing two esters by reacting an aldehyde with an alcohol in the presence of a ruthenium complex compound as a catalyst. The process is particularly useful for preparing ethyl acetate and n-butyl acetate, isobutyl acetate, or 2-ethylhexyl acetate in high yield by coupling acetaldehyde with n-butanol, i-butanol, or 2-ethylhexanol.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 15, 2016
    Assignee: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Robert Thomas Hembre, Stephanie Rollins Testerman
  • Publication number: 20160297741
    Abstract: Disclosed is a process for preparing two esters by reacting an aldehyde with an alcohol in the presence of a ruthenium complex compound as a catalyst. The process is particularly useful for preparing ethyl acetate and n-butyl acetate, isobutyl acetate, or 2-ethylhexyl acetate in high yield by coupling acetaldehyde with n-butanol, i-butanol, or 2-ethylhexanol.
    Type: Application
    Filed: April 7, 2015
    Publication date: October 13, 2016
    Applicant: Eastman Chemical Company
    Inventors: Mesfin Ejerssa Janka, Robert Thomas Hembre, Stephanie Rollins Testerman
  • Publication number: 20160068655
    Abstract: The invention relates to a process that integrates the oxidation of toluene to benzoic acid with the production of benzoate plasticizers. Toluene is fed to an oxidation vessel in the presence of oxygen and an oxidation catalyst wherein benzoic acid serves as the solvent for the oxidation. The crude benzoic acid produced is not purified and is then reacted with an alcohol in the presence of an esterification catalyst to produce the crude benzoate ester. The oxidation catalyst, esterification catalyst, and other impurities can be mostly removed from the crude benzoate ester in subsequent washing and filtering steps. The benzoate esters produced through this method can be made in fewer steps with both yields and purities above 80%.
    Type: Application
    Filed: November 13, 2015
    Publication date: March 10, 2016
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Pinguan Zheng, Jonathan J. Mabe, Charles Edwan Sumner, JR., Mesfin Ejerssa Janka, Beverly Lenora Frye, Stephanie Rollins Testerman, Brent Alan Tennant