(19)
(11) EP 0 393 860 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.05.1992 Bulletin 1992/21

(43) Date of publication A2:
24.10.1990 Bulletin 1990/43

(21) Application number: 90303250.6

(22) Date of filing: 27.03.1990
(51) International Patent Classification (IPC)5C06B 47/14, C06B 23/04, C06B 45/00
(84) Designated Contracting States:
DE ES FR IT SE

(30) Priority: 10.04.1989 GB 8907992

(71) Applicant: IMPERIAL CHEMICAL INDUSTRIES PLC
London SW1P 3JF (GB)

(72) Inventor:
  • McLaughlin, John Gerard
    Shevington, Wigan, Lancs. (GB)

(74) Representative: Parker, Vernon et al
ICI Group Patents Services Dept. PO Box 6 Shire Park Bessemer Road
Welwyn Garden City Herts, AL7 1HD
Welwyn Garden City Herts, AL7 1HD (GB)


(56) References cited: : 
   
       


    (54) Water/melt-in-oil emulsion explosive composition


    (57) A detonator sensitive, stable water-in-oil or melt-in-oil emulsion explosive comprises an oxidiser containing discontinuous phase, a fuel containing continuous phase, and an emulsifier. To increase the safety of the explosive in flammable atmospheres, such as in coal mines, from 7% to 15% w/w of at least one of the following cooling agents is dissolved in the discontnuous phase: sulphonate, phosphonate, ammonium halide, alkali metal halide, alkaline earth metal halide, or a soluble phosphate salt. Preferably at least 20% of cooling agent is distributed between the continuous and discontinuous phases, with at least about 7% preferably about 12% present in the discontinuous phase.





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