Rheology modification and modifiers

Details Rheology modification and modifiers Rheology modification and modifiers

C - Chemistry, Metallurgy

06

B

C06B 45/00 (2006.01) C06B 23/00 (2006.01) C06B 47/00 (2006.01) C06B 47/14 (2006.01)

Patent

CA 2289749

We have now found that associative thickeners may be used in emulsions for use in explosive compositions, which associative thickeners provide for rapid and reversible changes in emulsion viscosity. Associative thickeners provide explosives emulsions having the desirable characteristics of (1) significant reduction in viscosity during pumping and (2) reestablishment of relatively high viscosity when pumping is terminated without damage to the emulsion components. It is believed that the associative thickener provides a network of physical linkages throughout the emulsion which network can be reversibly broken down.

Il a été observé qu'il était possible d'utiliser des épaississants dans des émulsions prévues pour des compositions explosives. Ces épaississants assurent des changements rapides et réversibles de la viscosité des émulsions. L'utilisation d'épaississants permet d'obtenir des émulsions explosives présentant les caractéristiques requises de (1) réduction significative de la viscosité au cours du pompage et (2) rétablissement d'une viscosité relativement élevée une fois le pompage terminé sans endommager les composants de l'émulsion. Il semblerait que l'utilisation d'épaississants permette d'obtenir un réseau de liaisons physiques dans l'émulsion, qui peut être rompu de manière réversible.

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