Method for preparing a bitumen emulsion, corresponding bitumen emulsion and use thereof
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United States of America Patent
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Jun 10, 2003
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N/A
app pub date -
Jan 7, 2000
filing date -
May 7, 1998
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Expired
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Abstract
The present invention relates to a process for the manufacture of an emulsion of bituminous binder, comprising a) the preparation of a concentrated primary. emulsion containing a surfactant and at least 65% by weight in the case of an anionic emulsion, or at least 70% by weight in the case of the other emulsions, of bituminous binder, by mixing an initial aqueous phase and a liquid bituminous phase under the effect of a mechanical shear energy and in the presence of the said surfactant; and b) the addition of an aqueous dilution phase to the said primary emulsion.
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