Accession Number : ADD014299

Title :   2,4,4,5,5,6,6-Heptafluoro-2-Tri-Fluoromethyl-3-Oxaheptane-1,7-Diol Polyformal and Method of Preparation.

Descriptive Note : Patent, Filed 5 May 87, patented 26 Apr 88,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Adolph, Horst D ; Goldwasser, Judah M

Report Date : 26 Apr 1988

Pagination or Media Count : 3

Abstract : An object of this invention is to provide a new curable polyfluoro prepolymer. Another object of this invention is to provide a new curable polyfluoro prepolymer which is miscible with conventional plasticizers, curing agents, and other polymers. Other objects of this invention are to provide a curable polyfluoro prepolymer which may be used to provide a binder in castable or extrudable composites and to provide an energetic, curable prepolymer for use in a binder in castable or extrudable explosive or propellant compositions. These and other objects of this invention are accomplished by providing 2,4,4,5,5,6,6-heptafluoro-2-trifluoromethyl-3-oxaheptane-1,7-diol polyformal, HOCH2CF2CF2CF2OCF(CF3)CH2O(C-H2OCH2CF2CF2CF2OCF(CF3)CH20)(n)H, wherein n 1, which is prepared by reacting 2,4,4,5,5,6,6-heptafluoro-2-trifluoromethyl-3-oxaheptane-1,7-diol with formaldehyde in 80-90% sulfuric acid. Keywords: Patents. (AW)

Descriptors :   *BINDERS, *EXPLOSIVES, *FLUOROPOLYMERS, *PROPELLANTS, *METHYLAL, CASTINGS, CHEMICAL COMPOSITION, COMPOSITE MATERIALS, CURING AGENTS, EXTRUSION, FORMALDEHYDE, PATENTS, PLASTICIZERS

Subject Categories : Polymer Chemistry
      Ammunition and Explosives
      Solid Rocket Propellants
      Industrial Chemistry and Chemical Processing

Distribution Statement : APPROVED FOR PUBLIC RELEASE