Patents by Inventor Mitchell Refvik

Mitchell Refvik 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: 20070135658
    Abstract: A process and catalyst blend for selectively producing mercaptans and sulfides from alcohols. The alcohol is reacted with hydrogen sulfide, in the presence of a catalyst blend containing a hydrotreating catalyst and a dehydration catalyst to convert the alcohol to mercaptan or sulfide in one-pass. The alcohols can include primary and secondary alcohols. The mercaptan or sulfide having less than about 30% unreacted alcohol contained therein.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Daniel Hasenberg, Mitchell Refvik
  • Publication number: 20070112100
    Abstract: Mercaptan-hardened epoxy polymer compositions, methods of making the mercaptan-hardened epoxy polymer compositions, and methods of using the mercaptan-hardened epoxy polymer compositions are provided. The mercaptan-hardened epoxy polymer can be produced by contacting a thiol ester composition and an epoxide composition to produce a mixture and then heating the mixture to produce the mercaptan-hardened epoxy polymer. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters, and crosslinked thiol esters. Adhesive polymer compositions, methods of making the adhesive polymer compositions, and methods of using the adhesive polymer compositions are provided. The adhesive polymer composition can be produced by contacting a thiol ester composition and an epoxide composition to produce a mixture and then heating the mixture to produce the adhesive polymer composition.
    Type: Application
    Filed: August 16, 2006
    Publication date: May 17, 2007
    Inventors: Jim Byers, Mitchell Refvik, Chad Brown, Michael Matson
  • Publication number: 20070055033
    Abstract: Poly(?-thioether ester) compositions, methods of making the poly(?-thioether ester) compositions, and methods of using the poly(?-thioether ester) compositions are provided. The poly(?-thioether ester) can be produced by contacting a thiol ester composition and an ?,?-unsaturated ester to produce a mixture and then heating the mixture to produce the poly(?-thioether ester). In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters, and cross-linked thiol esters.
    Type: Application
    Filed: August 14, 2006
    Publication date: March 8, 2007
    Inventors: Jim Byers, Mitchell Refvik, Chad Brown, Michael Matson
  • Publication number: 20060247475
    Abstract: A process for selectively making 2-thiols from alpha olefins is described. The process includes contacting a linear or branched alpha olefin having with H2S in the presence of a catalyst and recovering the 2-thiol from a product mixture. The catalyst includes a support and at least one metal selected from Group IIIA-VIIIA and the branched olefin is branched at the 3-position or higher with respect to the olefin double bond. Compositions wherein the 2-thiols are substantially free of 1 -thiol and 3-thiol isomers are also described.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 2, 2006
    Inventors: Daniel Hasenberg, Mitchell Refvik
  • Publication number: 20060111520
    Abstract: Polythiourethane polymer compositions, methods of making the polythiourethane polymer compositions, and methods of using the polythiourethane polymer compositions are provided. The polythiourethane can be produced by contacting a thiol ester composition and an isocyanate to produce a mixture and then heating the mixture to produce the polythiourethane polymer. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters, and cross-linked thiol esters.
    Type: Application
    Filed: August 16, 2005
    Publication date: May 25, 2006
    Inventors: Jim Byers, Mitchell Refvik, Chad Brown, Michael Matson, Michael Hankinson
  • Publication number: 20060036110
    Abstract: Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.
    Type: Application
    Filed: February 17, 2005
    Publication date: February 16, 2006
    Inventors: Chad Brown, Mitchell Refvik, Steven Herron
  • Publication number: 20060000252
    Abstract: Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.
    Type: Application
    Filed: February 17, 2005
    Publication date: January 5, 2006
    Inventors: Leslie Carstens, Baozhong Xing, Mitchell Refvik, Jim Byers
  • Publication number: 20050197391
    Abstract: Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.
    Type: Application
    Filed: February 17, 2005
    Publication date: September 8, 2005
    Inventors: Mitchell Refvik, Daniel Hasenberg, Michael Hankinson, Michael Matson, Dale Solaas, Steven Herron, Jim Byers
  • Publication number: 20050197390
    Abstract: Thiol ester compositions, methods of making the thiol ester compositions, and methods of using the thiol ester compositions are provided. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters and cross-linked thiol esters. The thiol ester composition can be used to produce cross-linked thiol esters, sulfonic acid-containing esters, sulfonate containing esters and thioacrylate containing esters. The thiol ester compositions can be used to produce polythiourethanes. The polythiourethanes can be used in fertilizers and fertilizer coatings.
    Type: Application
    Filed: February 17, 2005
    Publication date: September 8, 2005
    Inventors: Jim Byers, Mitchell Refvik, Chad Brown
  • Publication number: 20050080311
    Abstract: Removing impurities from a heptane stream by contacting the heptane stream with an acidic catalyst, wherein the contacting reduces a concentration of one or more close boiling impurities, one or more olefins, or both. The impurities are isomerized via contact with the acidic catalyst into species that possess lower octane levels or that do not possess boiling points as near to the boiling point of n-heptane, which promotes separation of the impurities via distillation. Close boiling impurities may include such compounds as cis-1,2-dimethylcyclopentane and methylcyclohexane or may be compounds having boiling points at a standard pressure of 760 Torr in the range of about 96.5 to about 100.5 degrees Celsius including such compounds as cis-1,2-dimethylcyclopentane and methylcyclohexane. The concentration of cis-1,2-dimethylcyclopentane and methylcyclohexane may be reduced by at least about 25 and 10 percent by weight, respectively.
    Type: Application
    Filed: August 27, 2004
    Publication date: April 14, 2005
    Inventors: Daniel Hasenberg, Mitchell Refvik, Christopher Tully, Michael Hankinson, Clyde Denton, Dale Solaas