C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
6/161
C08L 95/00 (2006.01) E01C 19/10 (2006.01)
Patent
CA 1219405
ABSTRACT OF THE INVENTION An improved mixing process for aqueous bituminous emulsion-aggregate slurries is disclosed whereby cationic emulsions are prepared by emulsifying bitumen, such as an asphalt, in water with a new kind of cation-active emulsifier which is the product of the reaction of a polyamine with certain polycarboxylic acids wherein one or more additives selected from the group consisting of a polyamine, ammonia, magnesium sulfate, cupric sulfate, chromium chloride, ferric sulfate or dilute sulfuric acid is added to the mixing water to extend the mixing time and to give mixes with good flowability and flotation characteristics.
454010
Schilling Peter
Schreuders Hans G.
G. Ronald Bell & Associates
Westvaco Corporation
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