Patents by Inventor Steven J. Adams

Steven J. Adams 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).

  • Patent number: 11585644
    Abstract: A mass reducing projectile is provided. The mass reducing projectile includes a shell, one or more weights, and a low melt fusible alloy. The one or more weights are disposed within the shell. The low melt fusible alloy is disposed within the shell so as to encase the one or more weights within the shell.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: February 21, 2023
    Assignee: The Boeing Company
    Inventors: Ngoc Hoang Nguyen, Catherine D. Cannova, Steven J. Adam, Daniel A. Watts
  • Patent number: 11518726
    Abstract: Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst to afford an oxo-substituted bicyclo[2.2.2]octane species. This intermediate structure can then be further derivatized. The processes of this disclosure thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 6, 2022
    Assignee: Eastman Chemical Company
    Inventors: Yue Rachel Hu, Robert Thomas Hembre, Gerald Charles Tustin, Zhufang Liu, Steven J. Adams
  • Patent number: 11485645
    Abstract: A system for ammonia distillation may include a condenser to condense ammonia vapor into liquid anhydrous ammonia, a flush tank to receive a flushed portion of the liquid anhydrous ammonia, a collection tank to receive a collected portion of the liquid anhydrous ammonia, and a corrosion inhibitor dispenser to transfer a corrosion inhibitor to the collected portion of the liquid anhydrous ammonia to form corrosion-inhibiting liquid anhydrous ammonia.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: November 1, 2022
    Assignee: The Boeing Company
    Inventors: Jason M. Siegel, Wen-teh Chen, Steven J. Adam
  • Publication number: 20220299302
    Abstract: A mass reducing projectile is provided. The mass reducing projectile includes a shell, one or more weights, and a low melt fusible alloy. The one or more weights are disposed within the shell. The low melt fusible alloy is disposed within the shell so as to encase the one or more weights within the shell.
    Type: Application
    Filed: January 11, 2022
    Publication date: September 22, 2022
    Inventors: Ngoc Hoang Nguyen, Catherine D. Cannova, Steven J. Adam, Daniel A. Watts
  • Patent number: 10836899
    Abstract: A semi-crystalline polyester comprising a repeat unit of the formula: wherein A is an aliphatic, aromatic, or heterocyclic group; R1 is selected from the group consisting of 1,4-butanediol residue and 1,4-cyclohexanedimethanol residue; R2 is neopentanediol residue; m is between 50 and 99 inclusive; n is between 1 and 50 inclusive; x is between 1 and 200 inclusive; and wherein said semi-crystalline polyester exhibits a minimum crystallization half-time of about 0.3 minutes or greater, or about 0.5 minutes or greater or about 0.6 minutes or greater or about 0.7 minutes or greater is described. The polyesters of the present invention may in various embodiments demonstrate one or more desirable performance characteristics and accordingly are particularly useful in applications and utilities wherein those high levels of performance for such characteristics are required. A process for forming the semi-crystalline polyester is also disclosed.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: November 17, 2020
    Assignee: Eastman Chemical Company
    Inventors: David Scott Porter, Wentao Li, Sarah Exley Goetz, Aireal Denise Pressley, Amit Vasant Desai, Yue Rachel Hu, Steven J. Adams
  • Patent number: 10829429
    Abstract: A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 10, 2020
    Assignee: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki, David Alan Jenkins
  • Publication number: 20200317910
    Abstract: A semi-crystalline polyester comprising a repeat unit of the formula: wherein A is an aliphatic, aromatic, or heterocyclic group; R1 is selected from the group consisting of 1,4-butanediol residue and 1,4-cyclohexanedimethanol residue; R2 is neopentanediol residue; m is between 50 and 99 inclusive; n is between 1 and 50 inclusive; x is between 1 and 200 inclusive; and wherein said semi-crystalline polyester exhibits a minimum crystallization half-time of about 0.3 minutes or greater, or about 0.5 minutes or greater or about 0.6 minutes or greater or about 0.7 minutes or greater is described. The polyesters of the present invention may in various embodiments demonstrate one or more desirable performance characteristics and accordingly are particularly useful in applications and utilities wherein those high levels of performance for such characteristics are required. A process for forming the semi-crystalline polyester is also disclosed.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Applicant: Eastman Chemical Company
    Inventors: David Scott Porter, Wentao Li, Sarah Exley Goetz, Aireal Denise Pressley, Amit Vasant Desai, Yue Rachel Hu, Steven J. Adams
  • Publication number: 20200270191
    Abstract: Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst to afford an oxo-substituted bicyclo[2.2.2]octane species. This intermediate structure can then be further derivatized. The processes of this disclosure thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives.
    Type: Application
    Filed: October 10, 2018
    Publication date: August 27, 2020
    Applicant: Eastman Chemical Company
    Inventors: Yue Rachel HU, Robert Thomas HEMBRE, Gerald Charles TUSTIN, Zhufang LIU, Steven J. ADAMS
  • Publication number: 20200190318
    Abstract: A semi-crystalline polyester comprising a repeat unit of the formula: wherein A is an aliphatic, aromatic, or heterocyclic group; R1 is selected from the group consisting of 1,4-butanediol residue and 1,4-cyclohexanedimethanol residue; R2 is neopentanediol residue; m is between 50 and 99 inclusive; n is between 1 and 50 inclusive; x is between 1 and 200 inclusive; and wherein said semi-crystalline polyester exhibits a minimum crystallization half-time of about 0.3 minutes or greater, or about 0.5 minutes or greater or about 0.6 minutes or greater or about 0.7 minutes or greater is described. The polyesters of the present invention may in various embodiments demonstrate one or more desirable performance characteristics and accordingly are particularly useful in applications and utilities wherein those high levels of performance for such characteristics are required. A process for forming the semi-crystalline polyester is also disclosed.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Applicant: Eastman Chemical Company
    Inventors: David Scott Porter, Wentao Li, Sarah Exley Goetz, Aireal Denise Pressley, Amit Vasant Desai, Yue Rachel Hu, Steven J. Adams
  • Publication number: 20200148619
    Abstract: A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 14, 2020
    Applicant: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki, David Alan Jenkins
  • Patent number: 10590062
    Abstract: A process for making methyl esters in high yields is provided. The process comprises contacting aliphatic or aromatic aldehydes and methanol with an iron catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (<99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100° C. for 2-8 hours.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 17, 2020
    Assignee: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Leslie Sharon Depew
  • Patent number: 10577305
    Abstract: A process for making methyl esters in high yields. The process comprises contacting aliphatic or aromatic aldehydes and methanol with a homogeneous dimeric ruthenium catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (<99.9%) toward the formation of methyl esters over homoesters and alcohols and operates at temperatures of less than 100° C. for 2-8 hours.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: March 3, 2020
    Assignee: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki, David Alan Jenkins
  • Publication number: 20190330380
    Abstract: Processes and systems for separating a mixture including at least one fluorocarboxylic acid and at least one carboxylic acid are provided herein. In some aspects, the present invention relates to processes and systems configured to provide a purified stream of fluorocarboxylic acid and a purified stream of carboxylic acid, even when the mixture includes an azeotrope, a pinch point, and/or a eutectic mixture of the fluorocarboxylic acid and carboxylic acid. Systems as described herein may include, for example, at least one distillation zone and at least one fractional crystallization zone arranged in series and configured to provide highly purified product streams having compositions heretofore unachievable by conventional means.
    Type: Application
    Filed: December 8, 2016
    Publication date: October 31, 2019
    Applicant: Eastman Chemical Company
    Inventors: Robert Lin, Glenn Lewis Shoaf, Venkateswarlu Bhamidi, Shane Kipley Kirk, Marty L. Neal, Steven J. Adams
  • Patent number: 10435349
    Abstract: A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 8, 2019
    Assignee: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki, Michael Richard Laningham, Gerarld Wayne Ollis, Randy Lynn Jennings
  • Patent number: 10266466
    Abstract: Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the transfer hydrogenation of esters using C2-C12 alcohols as sacrificial hydrogen donors to produce corresponding alcohols from the esters. No external H2 pressure is required. The reaction can be carried out under ambient pressure.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 23, 2019
    Assignee: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Vikram Seshadri, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki
  • Publication number: 20190039977
    Abstract: Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the transfer hydrogenation of esters using C2-C12 alcohols as sacrificial hydrogen donors to produce corresponding alcohols from the esters. No external H2 pressure is required. The reaction can be carried out under ambient pressure.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 7, 2019
    Applicant: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Vikram Seshadri, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki
  • Publication number: 20190039991
    Abstract: Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of ethanol to produce ethyl acetate and hydrogen. As both ethanol and ethyl acetate are volatile materials, they can be readily separated from the catalyst by applying vacuum at room temperature. The hydrogen by-product of the reaction may be isolated and utilized as a feedstock in other chemical transformations.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 7, 2019
    Applicant: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki
  • Publication number: 20190039990
    Abstract: Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of methanol to produce methyl formate and hydrogen. As both methanol and methyl formate are volatile materials, they can be readily separated from the catalyst by applying vacuum at room temperature. The hydrogen by-product of the reaction may be isolated and utilized as a feedstock in other chemical transformations.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 7, 2019
    Applicant: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki
  • Publication number: 20190039992
    Abstract: A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 7, 2019
    Applicant: Eastman Chemical Company
    Inventors: Sumit Chakraborty, Steven J. Adams, Robert Thomas Hembre, Scott Donald Barnicki, Michael Richard Laningham, Gerarld Wayne Ollis, Randy Lynn Jennings
  • Publication number: 20180257944
    Abstract: A system for ammonia distillation may include a condenser to condense ammonia vapor into liquid anhydrous ammonia, a flush tank to receive a flushed portion of the liquid anhydrous ammonia, a collection tank to receive a collected portion of the liquid anhydrous ammonia, and a corrosion inhibitor dispenser to transfer a corrosion inhibitor to the collected portion of the liquid anhydrous ammonia to form corrosion-inhibiting liquid anhydrous ammonia.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Applicant: The Boeing Company
    Inventors: Jason M. Siegel, Wen-teh Chen, Steven J. Adam