Patents by Inventor Aaron David Sadow

Aaron David Sadow 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).

  • End group functionalization agents for polydiene
    Patent number: 11795243
    Abstract: The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R1, R2, R3, a, and n are as described herein and wherein R, R?, R?, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R1, R2, R3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: October 24, 2023
    Assignees: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., KUMHO PETROCHEMICAL
    Inventors: Aaron David Sadow, Bradley M. Schmidt, Gwanghoon Kwag, Hanbaek Lee, Dong Eun Kang
  • SELECTIVE TERMINAL CH ALUMINATION OF SATURATED HYDROCARBONS
    Publication number: 20230219870
    Abstract: Disclosed herein is the selective functionalization of one or more hydrocarbons ranging from the longest macromolecules to methane as the smallest. Functionalization is achieved through C-H activation of the one or more hydrocarbons and is carried out by the catalytic complex described herein. Also disclosed is the compound of formula (I) and the compound of formula (II).
    Type: Application
    Filed: November 8, 2022
    Publication date: July 13, 2023
    Inventors: Aaron David SADOW, Uddhav KANBUR, Frederic A. PERRAS, Alexander L. PATERSON, Andrew KOCEN, Geoffrey W. COATES, Anne M. LAPOINTE, Massimiliano DELFERRO, Ryan A. HACKLER, Jessica RODRIGUEZ
  • CATALYTIC UPCYCLING OF POLYOLEFINS VIA VERSATILE ALKYLALUMINUMS
    Publication number: 20220213007
    Abstract: Disclosed herein is a process for the conversion of polymers, oligomers, or mixtures thereof into shorter alkanes, carboxylic acids, alcohols, alkyl halides or aldehydes. This process includes contacting the polymers, oligomers, or mixtures thereof with the compound of formula (I): Al(R1)3??(I) where R1 is independently selected at each occurrence thereof from the group consisting of H, aryl, C1-C8 alkyl, and C1-C8 alkoxy, as a reaction mixture, in the presence of a catalyst selected from the group consisting of a transition metal catalyst, a lanthanide series metal catalyst, or combinations thereof.
    Type: Application
    Filed: December 17, 2021
    Publication date: July 7, 2022
    Inventors: Aaron David SADOW, Uddhav KANBUR
  • END GROUP FUNCTIONALIZATION AGENTS FOR POLYDIENE
    Publication number: 20210171672
    Abstract: The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R1, R2, R3, a, and n are as described herein and wherein R, R?, R?, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R1, R2, R3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.
    Type: Application
    Filed: January 11, 2021
    Publication date: June 10, 2021
    Inventors: Aaron David Sadow, Bradley M. Schmidt, Gwanghoon Kwag, Hanbaek Lee, Dong Eun Kang
  • End group functionalization agents for polydiene
    Patent number: 10919989
    Abstract: The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R1, R2, R3, a, and n are as described herein and wherein R, R?, R?, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R1, R2, R3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 16, 2021
    Assignees: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., KUMHO PETROCHEMICAL
    Inventors: Aaron David Sadow, Bradley M. Schmidt, Gwanghoon Kwag, Hanbaek Lee, Dong Eun Kang
  • Green, copper-catalyzed disproportionation of aromatic and heteroaromatic carboxylates to dicarboxylates
    Patent number: 10844031
    Abstract: The present application relates to a process for preparation of a compound of Formula (I) and Formula (IV): wherein is as described herein; and wherein and R are as described herein.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: November 24, 2020
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Aaron David Sadow, Zachary Benjamin Weinstein, George A. Kraus
  • GREEN, COPPER-CATALYZED DISPROPORTIONATION OF AROMATIC AND HETEROAROMATIC CARBOXYLATES TO DICARBOXYLATES
    Publication number: 20200157071
    Abstract: The present application relates to a process for preparation of a compound of Formula (I) and Formula (IV): wherein is as described herein; and wherein and R are as described herein.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Inventors: Aaron David Sadow, Zachary Benjamin Weinstein, George A. Kraus
  • END GROUP FUNCTIONALIZATION AGENTS FOR POLYDIENE
    Publication number: 20190119409
    Abstract: The present invention relates to a modified polymer having the structure of Formula (I) and Formula (IV): wherein A, R1, R2, R3, a, and n are as described herein and wherein R, R?, R?, x, and k are as described herein and methods for preparation thereof. The present invention also relates to a compound having the structure of Formula (II): wherein A, R1, R2, R3, a, and n are as described herein. The present invention also relates to a process for polymerizing unsaturated hydrocarbon monomers.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 25, 2019
    Inventors: Aaron David Sadow, Bradley M. Schmidt, Gwanghoon Kwag, Hanbaek Lee, Dong Eun Kang
  • Polymerization catalysts
    Patent number: 9856337
    Abstract: The present invention relates to processes for polymerizing unsaturated hydrocarbon monomers. The present invention also relates to a precatalyst having the structure of Formula (I): M{C(SiHAlk2)3}3??(I), and to a catalyst comprising the structure of Formula (II): MC(SiHAlk2)3X2??(II), and methods for preparation thereof.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 2, 2018
    Assignees: Iowa State University Research Foundation, Inc., Kumho Petrochemical
    Inventors: Aaron David Sadow, Gwanghoon Kwag, Hanbaek Lee, Aradhana Pindwal, Bradley M. Schmidt
  • POLYMERIZATION CATALYSTS
    Publication number: 20170275402
    Abstract: The present invention relates to processes for polymerizing unsaturated hydrocarbon monomers. The present invention also relates to a precatalyst having the structure of Formula (I): M{C(SiHAlk2)3}3??(I), and to a catalyst comprising the structure of Formula (II): MC(SiHAlk2)3X2??(II), and methods for preparation thereof.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 28, 2017
    Inventors: Aaron David Sadow, Gwanghoon Kwag, Hanbaek Lee, Aradhana Pindwal, Bradley M. Schmidt