Patents by Inventor David M. Petraitis

David M. Petraitis 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 separating one or more amine byproducts from one or more desired amines
    Patent number: 8895785
    Abstract: The present invention relates to separating one or more amine byproducts from one or more desired amines. More particularly, the invention involves forming a byproduct component with one or more amine byproducts and a first adjuvant component. The byproduct component has an enhanced separation characteristic relative to separating the amine byproducts from the desired amines in the absence of an adjuvant. Preferably, the byproduct component is separated in the presence of a second adjuvant component that preferably has a boiling point less than the boiling point of the first adjuvant component.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 25, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: David M. Petraitis, Stephen W. King
  • PROCESSES FOR SEPARATING ONE OR MORE AMINE BYPRODUCTS FROM ONE OR MORE DESIRED AMINES
    Publication number: 20130274522
    Abstract: The present invention relates to separating one or more amine byproducts from one or more desired amines. More particularly, the invention involves forming a byproduct component with one or more amine byproducts and a first adjuvant component. The byproduct component has an enhanced separation characteristic relative to separating the amine byproducts from the desired amines in the absence of an adjuvant. Preferably, the byproduct component is separated in the presence of a second adjuvant component that preferably has a boiling point less than the boiling point of the first adjuvant component.
    Type: Application
    Filed: December 6, 2011
    Publication date: October 17, 2013
    Applicant: Dow Global Technologies LLC
    Inventors: David M. Petraitis, Stephen W. King
  • Methods for making ethanolamine(s) and ethyleneamine(s) from ethylene oxide and ammonia, and related methods
    Patent number: 8383861
    Abstract: The present invention relates to processes for the manufacture of one or more ethanolamines and one or more ethyleneamines starting from the reaction of ethylene oxide with ammonia to produce one or more ethanolamines and the conversion of the ethanolamine(s) to ethyleneamine(s). The present invention also relates to separating alkylethyleneamines from ethyleneamines.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: February 26, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: David Do, Christopher H. Domke, Jacinto Lopez-Toledo, David M. Petraitis, Thomas Z. Srnak
  • Process to selectively manufacture diethylenetriamine (DETA) or other desirable ethyleneamines via continuous transamination of ethylenediamine (EDA), and other ethyleneamines over a heterogeneous catalyst system
    Patent number: 8383860
    Abstract: The present invention reacts ethylenediamine with one or more additional ethyleneamines in the presence of a transamination catalyst to provide a different, preferably more desirable product mix of one or more ethyleneamines.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: February 26, 2013
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: Ronald G. Cook, Stephen W. King, David M. Petraitis, Thomas Z. Smak
  • Method of manufacturing ethyleneamines
    Patent number: 8188318
    Abstract: The present invention provides methods of manufacturing ethyleneamines that makes use of an ethyleneamine-generating process that is coupled to a transamination process. The combination of an ethyleneamine-generating process with a transamination process improves the mix flexibility that can be obtained from the single process allowing the production of ethyleneamine compositions having an improved and more desirable product mix.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: May 29, 2012
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: David M. Petraitis, Stephen W. King, Thomas Z. Srnak
  • Methods for making ethanolamine(s) and ethyleneamine(s) from ethylene oxide and ammonia, and related methods
    Publication number: 20100087684
    Abstract: The present invention relates to processes for the manufacture of one or more ethanolamines and one or more ethyleneamines starting from the reaction of ethylene oxide with ammonia to produce one or more ethanolamines and the conversion of the ethanolamine(s) to ethyleneamine(s). The present invention also relates to separating alkylethyleneamines from ethyleneamines.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Inventors: David Do, Christopher H. Domke, Jacinto Lopez-Toledo, David M. Petraitis, Thomas Z. Srnak
  • Process to selectively manufacture diethylenetriamine (DETA) or other desirable ethylenamines via continuous transmination of ethylenediamine (EDA), and other ethyleneamines over a heterogeneous catalyst system
    Publication number: 20100087683
    Abstract: The present invention reacts ethylenediamine with one or more additional ethyleneamines in the presence of a transamination catalyst to provide a different, preferably more desirable product mix of one or more ethyleneamines.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Inventors: Ronald G. Cook, Stephen W. King, David M. Petraitis, Thomas Z. Smak
  • Method of manufacturing ethyleamines
    Publication number: 20100087681
    Abstract: The present invention provides methods of manufacturing ethyleneamines that makes use of an ethyleneamine-generating process that is coupled to a transamination process. The combination of an ethyleneamine-generating process with a transamination process improves the mix flexibility that can be obtained from the single process allowing the production of ethyleneamine compositions having an improved and more desirable product mix.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Inventors: David M. Petraitis, Stephen W. King, Thomas Z. Smak