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Reaction products of polyamines with certain polycarboxylic acid anhydrides are disclosed which give emulsions capable of producing medium set mixing grade asphalt emulsions, rapid set asphalt emulsions, and quick set slurry seal emulsions. Solventless asphalts as well as asphalts containing up to 1

Reaction products of polyamines with certain polycarboxylic acid anhydrides are disclosed which give emulsions capable of producing medium set mixing grade asphalt emulsions, rapid set asphalt emulsions, and quick set slurry seal emulsions. Solventless asphalts as well as asphalts containing up to 15% by volume of a hydrocarbon oil can be used for emulsification.

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1. A bituminous emulsion comprising from about 30% to about 80% by weight of bitumen, from about 0.1% to about 10% by weight of an emulsifier selected from the group consisting of reaction products of polyamines reacted with a polycarboxylic acid anhydride of the following formulae: ##STR## and wate

1. A bituminous emulsion comprising from about 30% to about 80% by weight of bitumen, from about 0.1% to about 10% by weight of an emulsifier selected from the group consisting of reaction products of polyamines reacted with a polycarboxylic acid anhydride of the following formulae: ##STR## and water to make up 100% by weight, the emulsion having a pH in the range of from 2-7. 2. The bituminous emulsion of claim 1 including up to 90% of the total emulsifier formulation of one or more auxiliary emulsifiers selected from the group consisting of fatty amines, fatty propane diamines, fatty amidoamines, fatty imidazolines, fatty monoquaternary ammonium salts, fatty diquaternary diammonium salts, and ethylene glycol polyethers of nonyl or dodecyl phenol. 3. The bituminous emulsion of claim 1 including up to 90% of the total emulsifier formulation of one or more auxiliary emulsifiers selected from the group consisting of nitrogen derivatives of resin acids and nitrogen derivatives of kraft lignin. 4. The bituminous emulsion of claim 1 wherein the emulsifier formulation is prepared by reacting a polyamine with a blend of the polycarboxylic acid anhydride of claim 1 and fatty carboxylic acids selected from the group consisting of fatty mono-, di- and tricarboxylic acids and mixtures thereof. 5. The bituminous emulsion of claim 1 wherein the emulsifier formulation is prepared by reacting a polyamine with a blend of resin acids and the polycarboxylic acid anhydride. 6. The bituminous emulsion of claim 1 wherein the emulsifier formulation is prepared by reacting a polyamine with a blend of kraft lignin and the polycarboxylic acid anhydride. 7. The bituminous emulsion of claims 1, 2, 3, 4, 5 or 6 comprising from about 60% to 70% bitumen by weight of the emulsion, from about 0.2% to 2.0% emulsifier by weight of the emulsion, and water to make up 100% by weight. 8. The bituminous emulsion of claim 1 wherein the emulsion includes from 1% to 15% by volume of a hydrocarbon oil. 9. The bituminous emulsion of claim 1 wherein a mixture of tall oil fatty acids is added to the bitumen prior to emulsification. 10. The bituminous emulsion of claim 9 wherein the tall oil fatty acids mixture is tall oil pitch. 11. A paving slurry seal mixture of an aqueous bituminous emulsion and mineral aggregate capable of being worked comprising: a densely graded mineral aggregate passing through No. 4 and at least 80% retained on 200 mesh screen; from about 8% to about 20% of an oil in water type emulsion, based on the weight of the mineral aggregate, wherein the emulsion is comprised of from about 55% to about 65% bitumen, based on the weight of the emulsion, from about 0.5% to about 2% of a cation-active emulsifier based on the weight of the emulsion, wherein the emulsifier is the reaction product of one or more polyamines reacted with a polycarboxylic acid anhydride of the following formulae: ##STR## and water to make up 100% by weight of the emulsion; from about 4% to about 16% water, based on the weight of the mineral aggregate, added to form a slurry of the aggregate and the emulsion; and up to 3% of an inorganic or organic additive to reduce the setting time of the mixture. 12. The paving slurry seal mixture of claim 11 including up to 90% of the total emulsifier formulation of one or more auxiliary emulsifiers selected from the group consisting of fatty amines, fatty propane diamines, fatty amidoamines, fatty imidazolines, fatty monoquaternary ammonium salts, fatty diquaternary diammonium salts, and ethylene glycol polyethers of nonyl or dodecyl phenol. 13. The paving slurry seal mixture of claim 11 including up to 90% of the total emulsifier formulation of one or more auxiliary emulsifiers selected from the group consisting of nitrogen derivatives of resin acids and nitrogen derivatives of kraft lignin. 14. The paving slurry seal mixture of claim 11 wherein the emulsifier formulation is prepared by reacting the polyamine with a blend of the polycarboxylic acid anhydride of claim 1 and fatty carboxylic acids selected from the group consisting of fatty mono-, di- and tricarboxylic acids and mixtures thereof. 15. The paving slurry seal mixture of claim 11 wherein the emulsifier formulation is prepared by reacting the polyamines with a blend of resin acids and the polycarboxylic acid anhydride. 16. The paving slurry seal mixture of claim 11 wherein the emulsifier formulation is prepared by reacting the polyamines with a blend of kraft lignin and the polycarboxylic acid anhydride. 17. The paving slurry seal mixture of claim 11 comprising from about 55% to 65% bitumen by weight of the emulsion, from about 0.2% to 2.0% emulsifier by weight of the emulsion, and water to make up 100% by weight. 18. The paving slurry seal mixture of claim 11 wherein a mixture of tall oil fatty acids is added to the bitumen prior to emulsification. 19. The paving slurry seal mixture of claim 18 wherein the tall oil fatty acids mixture is tall oil pitch. 20. The paving slurry seal mixture of claim 11 wherein the inorganic additive is selected from the group consisting of portland cement, hydrated lime, limestone dust, fly ash, ammonium sulfate and aluminum sulfate.