Amphoterics as emulsifiers for bituminous emulsions

Details Amphoterics as emulsifiers for bituminous emulsions Amphoterics as emulsifiers for bituminous emulsions

C - Chemistry, Metallurgy

07

D

260/124, 6/161,

C07D 233/26 (2006.01) C08J 3/03 (2006.01) C08K 5/00 (2006.01)

Patent

CA 1224774

53 ABSTRACT OF THE INVENTION Novel amphoteric emulsifiers are disclosed for solventless and solvent containing mixing grade, oil-in- water anionic and cationic bituminous emulsions, which emulsifiers are the modified reaction products of poly- amines with certain polycarboxylic acids and sulfonated carboxylic acids. Modifications are carried out by reacting the nitrogen-containing intermediates with formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorous acid, chloroalkane sulfonic acid salts, .gamma.-propane sultone, chloroalkane phosphonic acids, acrylic acid, fumaric acid, maleic acid and chloroethanoic acid.

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