초록 ▼

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 modified polyamine with certain po

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 modified polyamine with certain polycarboxylic acids and anhydrides. The modified polyamines are obtained by reacting suitable polyalkylene amines with a sugar-containing syrup, preferably molasses.

대표청구항 ▼

A method of forming a bituminous emulsion at a temperature above 100°F. comprising (1) from about 30% to about 80% by weight of bitumen, (2) from about 0.1% to about 10% by weight of an emulsifier obtained by reacting a modified polyamine with a precursor selected from the group consisting of fatty

A method of forming a bituminous emulsion at a temperature above 100°F. comprising (1) from about 30% to about 80% by weight of bitumen, (2) from about 0.1% to about 10% by weight of an emulsifier obtained by reacting a modified polyamine with a precursor selected from the group consisting of fatty acids, animal fats, vegetable oils, tall oil, reaction products of tall oil fatty acids with a member of the group consisting of acrylic acid, methacrylic acid, fumaric acid, maleic anhydride, sulfonated fatty acid, sulfonated resin acids, and reaction products of resin acids with a member of the group consisting of acrylic acid, fumaric acid, and maleic anhydride, epoxidized fats, vegetable oils, and fatty acid esters, and (3) water to make up 100% by weight, wherein the modified polyamine is obtained by reacting a polyalkylene amine with a sugar-containing syrup.