Patents by Inventor Philip E. Tuma

Philip E. Tuma 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).

  • Fluorosulfones
    Publication number: 20210246886
    Abstract: A foamable composition includes a blowing agent, a foamable polymer or a precursor composition thereof, and a nucleating agent. The nucleating agent includes a compound having structural formula (I) R1SO2R2(SO2R3)n (I) where R1, R2, and R3 are each independently a fluoroalkyl group having from 1 to 10 carbon atoms that is linear, branched, or cyclic and optionally contain at least one catenated ether oxygen atom or a trivalent nitrogen atom, and n is 0 or 1.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 12, 2021
    Inventors: William M. Lamanna, Sean M. Smith, Michael G. Costello, Michael J. Bulinski, John G. Owens, Markus E. Hirschberg, Klaus Hintzer, Bamidele O. Fayemi, Philip E. Tuma, Nicholas S. Johnson, Forrest A. Coughlin, Jay R. Nierengarten
  • Azeotropic compositions of methoxy-perfluoropropane and their use
    Patent number: 6281185
    Abstract: The present invention provides binary azeotropic composition consisting essentially of C3F7—OCH3 and a second component selected from the group consisting of an unsubstituted alkane having 5 to 7 carbon atoms, methyl formate, acetone, methanol, 1,1,1,3,3,3-hexafluoro-2-propanol, methylene chloride and trans-1,2-dichloroethylene. The present invention also discloses tertiary azeotropic composition consisting essentially of C3F7—OCH3, a second component selected from the group consisting of methanol and 1,1,1,3,3,3-hexafluoro-2-propanol and a third component selected from the group consisting of methylene chloride and trans-1,2-dichloroethylene. The azeotropic composition of this invention may be used in various applications and in particular as refrigerant, in cleaning applications, in heat transfer applications, in coating applications, and the like.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: August 28, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: John G. Owens, Philip E. Tuma, Hideto Yanome
  • Azeotropic compositions of methoxy-perfluoropropane and their use
    Patent number: 6030934
    Abstract: The present invention provides binary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3 and a second component selected from the group consisting of an unsubstituted alkane having 5 to 7 carbon atoms, methyl formate, acetone, methanol, 1,1,1,3,3,3-hexafluoro-2-propanol, methylene chloride and trans-1,2-dichloroethylene. The present invention also discloses tertiary azeotropic composition consisting essentially of C.sub.3 F.sub.7 --OCH.sub.3, a second component selected from the group consisting of methanol and 1,1,1,3,3,3-hexafluoro-2-propanol and a third component selected from the group consisting of methylene chloride and trans-1,2-dichloroethylene. The azeotropic composition of this invention may be used in various applications and in particular as refrigerant, in cleaning applications, in heat transfer applications, in coating applications, and the like.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: February 29, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: John G. Owens, Philip E. Tuma, Hideto Yanome