Patents by Inventor Jenna L. Caputo

Jenna L. Caputo 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).

  • Processes for producing aromatic diamine-initiated polyether polyols
    Patent number: 11629225
    Abstract: Processes are described for producing an aromatic diamine-initiated polyether polyol having a measured OH number of 300 to 500 mg KOH/g and a viscosity at 25° C. of 5000 to 50,000 mPas. The processes include a first alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with a starter consisting essentially of aromatic diamine at a molar ratio of propylene oxide to aromatic diamine of 1.4:1 to 2.0:1 to form an alkoxylated product; and a second alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with the alkoxylated product, in the presence of an added catalyst, until the ratio of moles of propylene oxide added in the process to the moles of aromatic diamine added in the process is 4:1 to 9:1.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: April 18, 2023
    Assignees: Covestro LLC, Covestro Deutschland AG
    Inventors: Jenna L. Caputo, Anthony R. Loveday, Edward P. Browne
  • Methods for removing amine contaminants from equipment used in the production of polyether polyols
    Patent number: 11529657
    Abstract: Methods of removing amine contaminants from equipment used in the production of polyether polyols. These methods include: (a) contacting the equipment with an aqueous solution of a first acid; (b) discharging the aqueous solution of the first acid from the equipment; (c) contacting the equipment with an aqueous solution of an acidic metal conditioner; (d) discharging the aqueous solution of the acidic metal conditioner from the equipment; (e) contacting the equipment with an aqueous solution of an alkali metal hydroxide; and (f) discharging the aqueous solution of the alkali metal hydroxide from the equipment.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 20, 2022
    Assignee: Covestro LLC
    Inventors: Jenna L. Caputo, Mark A. Christman, II, Charles D. Starkey, Daniel R. Wagner, Nigel Barksby
  • METHODS FOR REMOVING AMINE CONTAMINANTS FROM EQUIPMENT USED IN THE PRODUCTION OF POLYETHER POLYOLS
    Publication number: 20220288652
    Abstract: Methods of removing amine contaminants from equipment used in the production of polyether polyols. These methods include: (a) contacting the equipment with an aqueous solution of a first acid; (b) discharging the aqueous solution of the first acid from the equipment; (c) contacting the equipment with an aqueous solution of an acidic metal conditioner; (d) discharging the aqueous solution of the acidic metal conditioner from the equipment; (e) contacting the equipment with an aqueous solution of an alkali metal hydroxide; and (f) discharging the aqueous solution of the alkali metal hydroxide from the equipment.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 15, 2022
    Inventors: Jenna L. Caputo, Mark A. Christman, II, Charles D. Starkey, Daniel R. Wagner, Nigel Barksby
  • PROCESSES FOR PRODUCING AROMATIC DIAMINE-INITIATED POLYETHER POLYOLS
    Publication number: 20210371586
    Abstract: Processes are described for producing an aromatic diamine-initiated polyether polyol having a measured OH number of 300 to 500 mg KOH/g and a viscosity at 25° C. of 5000 to 50,000 mPas. The processes include a first alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with a starter consisting essentially of aromatic diamine at a molar ratio of propylene oxide to aromatic diamine of 1.4:1 to 2.0:1 to form an alkoxylated product; and a second alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with the alkoxylated product, in the presence of an added catalyst, until the ratio of moles of propylene oxide added in the process to the moles of aromatic diamine added in the process is 4:1 to 9:1.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 2, 2021
    Inventors: Jenna L. Caputo, Anthony R. Loveday, Edward P. Browne
  • Processes for removing water from a polyether polyol
    Patent number: 10150837
    Abstract: Disclosed are processes and systems for removing water from a polyether polyol that employs a controlled temperature and pressure profile.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: December 11, 2018
    Assignee: COVESTRO LLC
    Inventors: Jenna L. Caputo, Matthew S. Otto, Mark A. Christman, II, Daniel R. Wagner
  • PROCESSES FOR REMOVING WATER FROM A POLYETHER POLYOL
    Publication number: 20170369647
    Abstract: Disclosed are processes and systems for removing water from a polyether polyol that employs a controlled temperature and pressure profile.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 28, 2017
    Inventors: Jenna L. Caputo, Matthew S. Otto, Mark A. Christman, II, Daniel R. Wagner