Patents by Inventor Sarah L. Hruby

Sarah L. Hruby 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).

  • Process for preparing methacrolein
    Patent number: 11401229
    Abstract: Provided is a process for preparing dry methacrolein which maximizes capture of methanol. Also provided is a process for producing methyl methacrylate.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: August 2, 2022
    Assignee: Rohm and Haas Company
    Inventors: Reetam Chakrabarti, Sarah L. Hruby, Dmitri A. Krapchetov, Minh N. Ngo, Muhunthan Sathiosatham, Mark A. Silvano
  • PROCESS FOR PREPARING METHACROLEIN
    Publication number: 20210403404
    Abstract: Provided is a process for preparing dry methacrolein which maximizes capture of methanol. Also provided is a process for producing methyl methacrylate.
    Type: Application
    Filed: May 24, 2018
    Publication date: December 30, 2021
    Inventors: Reetam Chakrabarti, Sarah L. Hruby, Dmitry A. Krapchetov, Minh N. Ngo, Muhunthan Sathiosatham, Mark A. Silvano
  • Process for preparing methacrolein
    Patent number: 10836698
    Abstract: Provided is a process for preparing dry methacrolein which maximizes capture of methanol. Also provided is a process for producing methyl methacrylate.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 17, 2020
    Assignee: Rohm and Haas Company
    Inventors: Reetam Chakrabarti, Charles Como, Sarah L. Hruby, Dmitry A. Krapchetov, Minh N. Ngo, Muhunthan Sathiosatham, Mark A. Silvano
  • PROCESS FOR PREPARING METHACROLEIN
    Publication number: 20200181053
    Abstract: Provided is a process for preparing dry methacrolein which maximizes capture of methanol. Also provided is a process for producing methyl methacrylate.
    Type: Application
    Filed: May 24, 2018
    Publication date: June 11, 2020
    Inventors: Reetam Chakrabarti, Charles Como, Sarah L. Hruby, Dmitry A. Krapchetov, Minh N. Ngo, Muhunthan Sathiosatham, Mark A. Silvano
  • Preparation of a hydroxyalkyl phosphonic acid
    Patent number: 10246474
    Abstract: The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: April 2, 2019
    Assignee: Rohm and Haas Company
    Inventors: Allen S. Bulick, Sarah L. Hruby, Muhunthan Sathiosatham
  • Ammonium bisulfate catalyzed dehydration of beta-hydroxy acids
    Patent number: 9701610
    Abstract: Hydroxycarboxylic acids, e.g., 3-hydroxypropionic acid, and/or their ammonium salts are dehydrated to their corresponding unsaturated carboxylic acids, e.g., acrylic acid, by a process that uses a catalyst comprising ammonium bisulfate. The use of ammonium bisulfate reduces or eliminates the problems associated with processes that use sulfuric acid as a dehydrating catalyst, e.g, excess sulfuric acid consumption and/or recovery.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: July 11, 2017
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Leonard E. Bogan, Jr., Mark A. Silvano, Raymond P. Roach, Sarah M. Hoyt, Robert Tengler, David C. Decoster, Sanjib Biswas, Muhunthan Sathiosatham, Sarah L. Hruby, Andrew M. Lemonds
  • Ammonium Bisulfate Catalyzed Dehydration of Beta-Hydroxy Acids
    Publication number: 20160244395
    Abstract: Hydroxycarboxylic acids, e.g., 3-hydroxypropionic acid, and/or their ammonium salts are dehydrated to their corresponding unsaturated carboxylic acids, e.g., acrylic acid, by a process that uses a catalyst comprising ammonium bisulfate. The use of ammonium bisulfate reduces or eliminates the problems associated with processes that use sulfuric acid as a dehydrating catalyst, e.g, excess sulfuric acid consumption and/or recovery.
    Type: Application
    Filed: October 14, 2014
    Publication date: August 25, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Leonard E. Bogan, Jr., Mark A. Silvano, Raymond P. Roach, Sarah M. Hoyt, Robert Tengler, David C. Decoster, Sanjib Biswas, Muhunthan Sathiosatham, Sarah L. Hruby, Andrew M. Lemonds
  • PREPARATION OF A HYDROXYALKYL PHOSPHONIC ACID
    Publication number: 20150361117
    Abstract: The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 17, 2015
    Inventors: Allen S. Bulick, Sarah L. Hruby, Muhunthan Sathiosatham