Emulsion explosive

Details Emulsion explosive Emulsion explosive

1992-08-20

1996-03-19

Walsh, Donald P.

Explosive and thermic compositions or charges

Containing inorganic nitrogen-oxygen salt

Ammonium nitrate

149 60, C06B 3128, C06B 3130

Patent

active

055000622

ABSTRACT:
A mixed surfactant system for use in emulsion explosives is provided which confers improved emulsion stability and comprises a surfactant and a co-surfactant, each having branched chain hydrocarbyl tail groups, the former having significantly longer tail chain groups than the latter, for which system poly[alk(en)yl] succinic anhydride based surfactants are especially preferred, said surfactants having an interaction parameter, .beta., which is less than zero.

REFERENCES:
patent: 4552597 (1985-11-01), Abegg et al.
patent: 4818309 (1989-04-01), Yabsley et al.
patent: 4863534 (1989-09-01), Forsberg
patent: 4919178 (1990-04-01), Riga et al.
patent: 4931110 (1990-06-01), McKenzie et al.
patent: 5160387 (1992-11-01), Sujansky
"Ullmann's Encyclopedia of Industrial Chemistry", Fifth, Completely Revised Edition, vol. A9: Dithiocarbamic Acid to Ethanol, pp. 306-325.
British Search Report, GB 9217062.0, M. J. Conlon, Oct. 12, 1992.

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