Cationic aqueous bituminous emulsion-aggregate slurries preparation
AssigneeWestvaco Corporation
InventorsPeter Schilling, Hans G. Schreuders
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Abstract
Cationic aqueous bituminous emulsion-aggregate slurries are disclosed to be formed with cationic emulsions prepared at elevated temperatures by emulsifying bitumen, such as an asphalt, in water with a cation-active emulsifier which is the product of the reaction of a sugar-containing syrup with modified polyamine which is the reaction product of a polyamine with certain polycarboxylic acids and anhydrides.
Claims4
A composition of matter obtained by (1) modifying a polyamine by reaction with a member of the group consisting of sulfonated fatty acids, resin acids (rosin) reacted with maleic anhydride or fumaric acid, and epoxidized esters of unsaturated fatty esters from the group consisting of tallates, oleates, linoleates, glycerides, and polycarboxylic acids and their anhydrides of the formulae ##STR3## wherein x and y are integers from 3 to 9, x and y together equal 10-14, at least one Z is a carboxylic acid group and any remaining Z is hydrogen and (2) reacting the modified polyamine with a sugar-containing syrup.
Dependencies are inferred from the claim text.