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US 5,859,264 AGranted
Explosive compositions
AssigneeCroda International PLC
InventorsKeith Coupland, Barry Love
Life of this patent
Estimating the term…
Abstract
Gamma and delta lactones of formulae (I and 11) are used as emulsifiers in explosive compositions comprising a continuous organic phase and a discontinuous aqueous phase containing an oxygen-supplying compound. In the formulae, R is hydrocarbyl, R* is hydrogen, methyl or another hydrocarbyl, and Q is an amide, ammonium salt or ester functionality.
Claims12
The method of incorporating a .gamma.-lactone of formula:
- ##STR13## or a .delta.-lactone of formula:
- ##STR14## as an emulsifier in an explosive composition, wherein R is a hydrocarbyl group:
- R* is hydrogen, methyl or another hydrocarbyl group, which may be the same as or different from R;
- and Q is
- (i) ##STR15## wherein R.sup.1 is hydrogen or an alkyl, cycloalkyl or aryl group which may optionally be substituted:
- and R.sup.2 is hydrogen or an alkyl, cycloalkyl or aryl group which may optionally be substituted;
- (ii) ##STR16## where R.sup.1 and R.sup.2 are as defined above and R.sup.3 is hydrogen or an alkyl, cycloalkyl or aryl group which may optionally be substituted;
- or
- (iii) ##STR17## where R.sup.4 is a hydrocarbyl or substituted hydrocarbyl group derived from an alcohol, monomeric polyol or oligomeric poly(oxyalkylene) or alkanolamine.
6 more elements
Dependencies are inferred from the claim text.