초록 ▼

Reaction products of polyamines with certain polycarboxylic acid anhydrides are modified by reacting with formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid salts, γ-propane sultone, haloalkane phosphoric acid, acrylic acid, fumaric acid, maleic

Reaction products of polyamines with certain polycarboxylic acid anhydrides are modified by reacting with formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid salts, γ-propane sultone, haloalkane phosphoric acid, acrylic acid, fumaric acid, maleic acid and haloalkanoic acids 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.

대표청구항 ▼

1. Amphoteric emulsifiers for anionic and cationic bituminous emulsions consisting of reaction products of nitrogen-containing intermediates with compounds selected from the group consisting of formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid s

1. Amphoteric emulsifiers for anionic and cationic bituminous emulsions consisting of reaction products of nitrogen-containing intermediates with compounds selected from the group consisting of formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid salts, γ-propane sultone, haloalkane phosphonic acids, acrylic acid, fumaric acid, maleic acid, haloalkanoic acids wherein the nitrogen-containing intermediates are selected from the group of reaction products of polyamines reacted with a polycarboxylic acid anhydride of the following formulae: ##STR## 2. The amphoteric emulsifier of claim 1 wherein the polyamines are a blend of polyethylene amines consisting of diethylene triamine, triethylene tetramine, aminoethylpiperazine and aminoethylethanolamine. 3. 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 amphoteric emulsifier selected from the group consisting of reaction products of nitrogen-containing intermediates with compounds selected from the group consisting of formaldehyde and sodium sulfite or bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid salts, γ-propane sultone, haloalkane phosphonic acid, acrylic acid, fumaric acid, maleic acid and haloalkanoic acids, wherein the nitrogen-containing intermediates are selected from the group consisting of amphoteric reaction products of polyamines reacted with polycarboxylic acid anhydrides of the following formulae: ##STR## 4. The bituminous emulsion of claim 3 wherein the emulsion is a mixing grade emulsion. 5. The mixing grade bituminous emulsion of claim 4 having a pH of 1-7. 6. The mixing grade bituminous emulsion of claim 5 having a pH of 2.5-4. 7. The mixing grade bituminous emulsion of claim 4 having a pH of greater than 7 to 12. 8. The mixing grade bituminous emulsion of claim 7 having a pH of 10-11.5. 9. The bituminous emulsion of claim 3 comprising from about 60% to 70% bitumen by weight of the emulsion, from about 0.25% to 2.5% emulsifier by weight of the emulsion, and water to make up 100% by weight. 10. The bituminous emulsion of claim 3 including up to 90% of the total emulsifier 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. 11. The bituminous emulsion of claim 7 including up to 90% of the total emulsifier of one or more auxiliary emulsifiers selected from the group consisting of fatty acids, resin acids, lignins isolated from sulfite or kraft pulping liquors, or alkylsulfonates, long chain alkylsulfonates and petroleum sulfonates. 12. The bituminous emulsion of claim 3 wherein the emulsion includes from 1% to 15% by volume of a hydrocarbon oil. 13. The bituminous emulsion of claim 5 wherein a mixture of tall oil fatty acids is added to the bitumen prior to emulsification. 14. The bituminous emulsion of claim 13 wherein the tall oil fatty acids mixture is tall oil pitch. 15. 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 an amphoteric emulsifier based on the weight of the emulsion, 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, wherein the emulsifier is the reaction product of nitrogen-containing intermediates with compounds selected from the group consisting of formaldehyde and sodium sulfite or sodium bisulfite, formaldehyde and phosphorus acid, haloalkane sulfonic acid salts, γ-propane sultone, haloalkane phosphonic acids, acrylic acid, fumaric acid, maleic acid and haloalkanoic acids and the nitrogen-containing intermediates are formed as the reaction product of polyamines reacted with a polycarboxylic acid anhydride corresponding to the formulae: ##STR## 16. The paving slurry seal mixture of claim 15 wherein the emulsion is a slow-setting, mixing grade composition. 17. The paving slurry seal mixture of claim 16 wherein the emulsion is cationic comprising from about 55% to 65% bitumen by weight of the emulsion, from about 1.0% to 2.5% emulsifier by weight of the emulsion, and water to make up 100% by weight, the emulsion having a pH 1-7. 18. The paving slurry seal mixture of claim 17 wherein the pH is 2.5. 19. The paving slurry seal mixture of claim 16 wherein the emulsion is anionic, comprising from about 55% to 65% bitumen by weight of the emulsion, from about 1.0% to 2.5% emulsifier by weight of the emulsion, and water to make up 100% by weight, the emulsion having a pH from greater than 7 to 12. 20. The paving slurry seal mixture of claim 19 wherein the pH is from 10 to 11.5. 21. The paving slurry seal mixture of claim 17 wherein up to 90% of the total emulsifier is comprised of one or more auxliary 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. 22. The paving slurry seal mixture of claim 19 wherein up to 90% of the total emulsifier is comprised of one or more auxiliary emulsifiers selected from the group consisting of fatty acids, resin acids, lignins isolated from sulfite or kraft pulping liquors, or alkylsulfonates, long chain alkylsulfonates and petroleum sulfonates.