Patents by Inventor Steven McKeown

Steven McKeown 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).

  • Publication number: 20200399294
    Abstract: A process comprising: (a) contacting a feed stream comprising a di-alkyltin dihalide distillate with an alkylation agent, thereby forming an alkylated mixture comprising R4Sn and optionally R3SnX, R2SnX2, or mixtures thereof, where R is a linear, branched or cyclic C1-C20 alkyl, and X is a halide; (b) contacting the alkylated mixture with SnX4, thereby forming an alkyltin halide mixture comprising RSnX3, R2SnX2, and optionally impurities, R3SnX or mixtures thereof; (c) separating by distillation the alkyltin halide mixture to form a mono-alkyltin halide-rich distillate stream and a liquid di-alkyltin halide-rich bottoms stream comprising R2SnX2, RSnX3, and optionally impurities, R3SnX, or mixtures thereof; (d) separating by distillation the di-alkyltin halide-rich bottoms stream, thereby forming the liquid di-alkyltin dihalide distillate comprising R2SnX2, and optionally RSnX3, R3SnX or mixtures thereof, and an impurities-rich bottoms stream; and (e) recycling a part, xrecycle, of the liquid di-alkyltin di
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Peter FRENKEL, Joseph SALSBURY, Steven McKEOWN
  • Patent number: 9346939
    Abstract: A flexible compound comprising PVC or its co-polymers; greater than 10 to 200 parts by weight of at least one bio-based primary plasticizer comprising epoxidized fatty acid esters, wherein the fatty acids are derived from natural oils and animal fats, based on 100 parts by weight of PVC or its co-polymers; and 0.001 to 10 parts by weight of a mixed metal stabilizer comprising a zinc compound and at least one metal compound where the metal is selected from Li, Na, K, Mg, Ca, Sr, Ba, Cd, Al, La, Ce or rare earth metals, based on 100 parts by weight of PVC or its co-polymers, wherein an atomic ratio of metal/Zn for the mixed metal stabilizer is less than 1.0.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: May 24, 2016
    Assignee: Galata Chemicals LLC
    Inventors: Peter Frenkel, Anthony Joseph DeMaio, Steven McKeown
  • Patent number: 9321901
    Abstract: Plasticizer compositions comprising epoxidized fatty acid mono-esters and epoxy-esters are provided. The plasticizer compositions are free of compatibilizer and may contain metal perchlorates and/or phenolic antioxidants and/or conventional plasticizers. The compositions are useful for reduced extraction and lower volatility of halogenated polymers containing the compositions. The plasticizer compositions give reduced extraction of at least 15%. A process for making the plasticizer compositions is also provided. A method of reduced plasticizer extraction from halogenated polymers, such as polyvinyl chloride, is further provided. The plasticizer compositions may be added to PVC resins in effective amounts ranging from 1 and 200 phr.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: April 26, 2016
    Assignee: GALATA CHEMICALS LLC
    Inventors: Peter Frenkel, Steven McKeown
  • Publication number: 20150126651
    Abstract: A flexible compound comprising PVC or its co-polymers; greater than 10 to 200 parts by weight of at least one bio-based primary plasticizer comprising epoxidized fatty acid esters, wherein the fatty acids are derived from natural oils and animal fats, based on 100 parts by weight of PVC or its co-polymers; and 0.001 to 10 parts by weight of a mixed metal stabilizer comprising a zinc compound and at least one metal compound where the metal is selected from Li, Na, K, Mg, Ca, Sr, Ba, Cd, Al, La, Ce or rare earth metals, based on 100 parts by weight of PVC or its co-polymers, wherein an atomic ratio of metal/Zn for the mixed metal stabilizer is less than 1.0.
    Type: Application
    Filed: August 19, 2014
    Publication date: May 7, 2015
    Inventors: Peter Frenkel, Anthony Joseph DeMaio, Steven McKeown
  • Patent number: 8876918
    Abstract: Bio-based wax compositions contain at least one of the following components: epoxides of non-hydrogenated vegetable oils, epoxides of fatty acid esters. epoxides of tall oil fatty acid esters, chemically modified epoxides of non-hydrogenated vegetable oils, chemically modified epoxides of fatty acid esters, and chemically modified epoxides of tall oil fatty acid esters. The wax compositions can be used to produce candle sticks, container candles and/or composite materials.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 4, 2014
    Assignee: Galata Chemicals, LLC
    Inventors: Andrew J. Clock, Steven McKeown, Eric Wisnefsky, Peter Frenkel
  • Publication number: 20140309345
    Abstract: Rasticizer compositions comprising epoxidized fatty acid mono-esters and epoxy-esters are provided. The plasticizer compositions are free of compatibilizer and may contain metal perchlorates and/or phenolic antioxidants and/or conventional plasticizers. The compositions are useful for reduced extraction and lower volatility of halogenated polymers containing the compositions. The plasticizer compositions give reduced extraction of at least 15%. A process for making the plasticizer compositions is also provided. A method of reduced plasticizer extraction from halogenated polymers, such as polyvinyl chloride, is further provided. The plasticizer compositions may be added to PVC resins in effective amounts ranging from 1 and 200 phr.
    Type: Application
    Filed: October 11, 2012
    Publication date: October 16, 2014
    Applicant: GALATA CHEMICALS LLC
    Inventors: Peter Frenkel, Steven McKeown
  • Publication number: 20120222347
    Abstract: Bio-based wax compositions contain at least one of the following components: epoxides of non-hydrogenated vegetable oils, epoxides of fatty acid esters. epoxides of tall oil fatty acid esters, chemically modified epoxides of non-hydrogenated vegetable oils, chemically modified epoxides of fatty acid esters, and chemically modified epoxides of tall oil fatty acid esters. The wax compositions can be used to produce candle sticks, container candles and/or composite materials.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 6, 2012
    Applicant: GALATA CHEMICALS ,LLC.
    Inventors: Andrew J. Clock, Steven McKeown, Eric Wisnefsky, Peter Frenkel
  • Publication number: 20120021820
    Abstract: A video terminal may be provided. The video terminal may include internal hardware. The video terminal may include a cabinet, the cabinet enclosing the internal hardware. The video terminal may include a door movably attached to the cabinet, the door having a door opened and a door closed position. The video terminal may include a display screen movably attached to the cabinet separately from the door and having a screen opened and a screen closed position.
    Type: Application
    Filed: July 25, 2011
    Publication date: January 26, 2012
    Inventors: Timothy Alexander Gordon, Julien Grell, Steven Mckeown, Jean-Frederic Roy, Todd Smith
  • Publication number: 20080055491
    Abstract: A video terminal may be provided. The video terminal may include internal hardware. The video terminal may include a cabinet, the cabinet enclosing the internal hardware. The video terminal may include a door movably attached to the cabinet, the door having a door opened and a door closed position. The video terminal may include a display screen movably attached to the cabinet separately from the door and having a screen opened and a screen closed position.
    Type: Application
    Filed: February 5, 2007
    Publication date: March 6, 2008
    Inventors: Timothy Gordon, Julien Grell, Steven McKeown, Jean-Frederic Roy, Todd Smith