Patents by Inventor James H. Plonka

James H. Plonka 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).

  • METHODS FOR PRODUCING 5-(HALOMETHYL)FURFURAL
    Publication number: 20230032460
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Application
    Filed: March 4, 2022
    Publication date: February 2, 2023
    Applicant: Origin Materials Operating, Inc.
    Inventors: Alex B. WOOD, Makoto N. MASUNO, Ryan L. SMITH, John BISSELL, Dimitri A. HIRSCH-WEIL, Robert Joseph ARAIZA, Daniel R. HENTON, James H. PLONKA
  • Methods for producing 5-(halomethyl)furfural
    Patent number: 11299468
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: April 12, 2022
    Assignee: Origin Materials Operating, Inc.
    Inventors: Alex B. Wood, Makoto N. Masuno, Ryan L. Smith, John Bissell, Dimitri A. Hirsch-Weil, Robert Joseph Araiza, Daniel R. Henton, James H. Plonka
  • METHODS FOR PRODUCING 5-(HALOMETHYL)FURFURAL
    Publication number: 20210087157
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Application
    Filed: June 5, 2020
    Publication date: March 25, 2021
    Applicant: Micromidas, Inc.
    Inventors: Alex B. WOOD, Makoto N. MASUNO, Ryan L. SMITH, John BISSELL, Dimitri A. HIRSCH-WEIL, Robert Joseph ARAIZA, Daniel R. HENTON, James H. PLONKA
  • Methods for producing 5-(halomethyl)furfural
    Patent number: 10710970
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 14, 2020
    Assignee: MICROMIDAS, INC.
    Inventors: Alex B. Wood, Makoto N. Masuno, Ryan L. Smith, John Bissell, Dimitri A. Hirsch-Weil, Robert Joseph Araiza, Daniel R. Henton, James H. Plonka
  • METHODS FOR PRODUCING 5-(HALOMETHYL)FURFURAL
    Publication number: 20190144408
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Application
    Filed: June 7, 2018
    Publication date: May 16, 2019
    Applicant: MICROMIDAS, INC.
    Inventors: Alex B. WOOD, Makoto N. MASUNO, Ryan L. SMITH, John BISSELL, Dimitri A. HIRSCH-WEIL, Robert Joseph ARAIZA, Daniel R. HENTON, James H. PLONKA
  • Methods for producing 5-(halomethyl)furfural
    Patent number: 10011577
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 3, 2018
    Assignee: MICROMIDAS, INC.
    Inventors: Alex B. Wood, Makoto N. Masuno, Ryan L. Smith, John Bissell, Dimitri A. Hirsch-Weil, Robert Joseph Araiza, Daniel R. Henton, James H. Plonka
  • METHODS FOR PRODUCING 5-(HALOMETHYL)FURFURAL
    Publication number: 20160207897
    Abstract: The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides, including isomers thereof, polymers thereof, and certain derivatives thereof. The methods make use of acids with lower concentrations, and allows for conversion of sugars into 5-(halomethyl)furfural at higher temperatures and faster reaction or residence times.
    Type: Application
    Filed: September 19, 2014
    Publication date: July 21, 2016
    Applicant: MICROMIDAS, INC.
    Inventors: Alex B. WOOD, Makoto N. MASUNO, Ryan L. SMITH, John BISSEL, Dimitri A. HIRSCH-WEIL, Robert Joseph ARAIZA, Daniel R. HENTON, James H. PLONKA
  • Process for production of .gamma.-halonitriles
    Patent number: 4001293
    Abstract: A new process for preparing .gamma.-halonitriles comprising reacting by contacting a 1,3-dihalopropane, such as 1-chloro-3-bromopropane, or mixtures thereof, such as 1-chloro-3-bromopropane and 1-chloro-3-iodopropane, with an alkali metal cyanide, such a sodium cyanide, in the presence of an onium salt, such as benzyltriethylammonium chloride, and an alkali metal halide, such as sodium chloride. The .gamma.-halonitriles are useful in preparing cyclopropylcyanide, a herbicide intermediate.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: January 4, 1977
    Assignee: The Dow Chemical Company
    Inventors: James H. Plonka, Ralph A. Davis
  • Process for production of cyclopropylcyanide
    Patent number: 3974199
    Abstract: Cyclopropylcyanide is prepared by an improved process comprising reacting by contacting a .gamma.-halo-butyronitrile or mixture thereof, with an alkali metal hydroxide in the presence of a catalytic amount of an onium salt. For example, the reaction of 4-chlorobutyronitrile with sodium hydroxide in the presence of benzyltriethylammonium chloride produces cyclopropylcyanide in high yield.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: August 10, 1976
    Assignee: The Dow Chemical Company
    Inventors: James H. Plonka, R. Garth Pews