(19)
(11) EP 0 457 518 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.04.1992 Bulletin 1992/16

(43) Date of publication A2:
21.11.1991 Bulletin 1991/47

(21) Application number: 91304243.8

(22) Date of filing: 10.05.1991
(51) International Patent Classification (IPC)5: C06C 15/00, C06B 33/04, F42B 4/26
(84) Designated Contracting States:
AT BE CH ES GR LI NL

(71) Applicant: THIOKOL CORPORATION
Ogden Utah 84401 (US)

(72) Inventors:
  • Nielson, Daniel B.
    Brigham City, Utah 84302 (US)
  • Jones, Leon L.
    Ogden, Utah 84414 (US)

(74) Representative: Bankes, Stephen Charles Digby et al
BARON & WARREN 18 South End Kensington
London W8 5BU
London W8 5BU (GB)


(56) References cited: : 
   
       


    (54) Infrared illuminant


    (57) An infrared illuminant composition and flares produced therefrom having increased burn rate and increased infrared intensity while maintaining low visible light intensity. The composition comprises potassium nitrate, cesium nitrate, hexamine, boron, silicon, ferric oxide and a binder. A process to produce infrared illuminant flares prevents or substantially eliminates chunking out of burning pieces of the illuminant at pressing increments in the flares. A multi-stepped pressing foot (10) is used for pressing the composition in the case.






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