Plural Difluoramine Groups Bonded Directly To The Same Carbon Patents (Class 564/122)
  • Octafluoropentaerythrityltetramine (octafluoro-peta) and process for its preparation
    Patent number: 8008527
    Abstract: A composition and method of manufacturing the same. Embodiments of an aspect of the invention relate to the formula C(CH2NF2)4 having the name octafluoropentaerythrityltetramine (octafluoro-PETA). In embodiments of another aspect generally relate to a method for manufacturing octafluoropentaerythrityltetramine (octafluoro-PETA) including, basifying pentaerythrityltetramine tetrahydrochloride in an aqueous solution with an aqueous alkali and treating with alkyl chloroformate for producing a tetraalkyl pentaerythrityltetra carbamate, extracting the compound into a nonaqueous solvent suitable for extraction from water and removing the solvent for providing a pure form of tetraethyl pentaerythrityltetracarbamate, bubbling elemental fluorine and/or mixtures of fluorine with an inert gas through tetraalkyl pentaerythrityltetracarbamate in a solvent suitable for direct fluorinations of protected amines until excess fluorine appears, and purifying the resultant octafluoropentaerythrityltetramine.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 30, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert D. Chapman, Richard A. Hollins
  • Fluorodinitro compounds
    Patent number: 4341712
    Abstract: Fluorodinitro compounds are proposed as new compositions of matter which are useful as energetic ingredients for propellant and explosive formulations.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: July 27, 1982
    Assignee: Rockwell International Corporation
    Inventors: Milton B. Frankel, Edward F. Witucki