Emulsion explosive

Details Emulsion explosive Emulsion explosive

1990-11-16

1992-11-03

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

149 44, 149 46, 149 61, 149 76, 149 83, C06B 4500

Patent

active

051603870

ABSTRACT:
An emulsion explosive comprising a discontinuous oxygen-releasing salt phase, a continuous fuel phase and an emulsifier blend, said emulsifier blend comprising a first emulsifier component consisting of at least one emulsifier comprising a lipophilic moiety, being a polymer of a C.sub.2 to C.sub.6 olefin, and a hydrophilic moiety, being derived from an amine wherein the HLB of the first emulsifier component, as herein defined, is in the range of from 1.0 to 1.3 and a second emulsifier component and wherein the HLB of the emulsifier blend, as herein defined is in the range of from 1.4 to 3.0. Compositions of the present invention combine not only ease of formation and long term stability but also provide significant advantages in the refinement of emulsions and exhibit improved tolerance to shear allowing repumping and greater ease of handling.

REFERENCES:
patent: 4500370 (1985-02-01), Hajto
patent: 4509998 (1985-04-01), Hajto
patent: 4710148 (1987-12-01), Nagaoka
patent: 4764230 (1988-08-01), Bates et al.
patent: 4775431 (1988-10-01), Mullay
patent: 4784706 (1988-11-01), McKenzie
patent: 4822433 (1989-04-01), Cooper et al.
patent: 4828633 (1989-05-01), Forsberg
patent: 4840687 (1989-06-01), Forsberg et al.
patent: 5074939 (1991-12-01), Sanders et al.

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