Hexahydropyrimidines as asphalt emulsifiers and emulsions containing hexadropyrimidines
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United States of America Patent
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Apr 1, 1986
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N/A
app pub date -
Jan 6, 1984
filing date -
Feb 4, 1983
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Expired
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Abstract
A rapid-set asphalt emulsion which comprises at least 60% residue, 30% water, 0.1% acid, and 0.15% of an emulsifier, the emulsifier comprising a hexahydropyrimidine of the general formula: ##STR1## wherein R.sub.1 is an alkyl group having from 8 to 18 carbon atoms, and R.sub.2 and R.sub.3 may be the same or different, and are selected from the group including H-- or --(CH.sub.2).sub.x CH.sub.3, wherein x is an integer between 0 and 3.
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