or tall oil derived fatty acids and resin acids with various amines which when added to the asphalt before emulsification produce emulsions of a higher viscosity than the emulsion prepared with the asphalt without the additive at the same or reduced bitumen content application_number US 15322088 A description viscosifiers for bituminous emulsions were obtained when tall oil fatty acids rosin tall oil pitch petroleum derived acids or esters aromatic acids aliphatic acids cycloaliphatic acids vegetable oils animal oils tallow fatty acids or any distillation residue which contains carboxylic groups are reacted with these products distinguish themselves from acid soluble emulsifiers of a similar composition in that they are not soluble in water at any ph value due to the high content of fatty acid in the condensate cationic emulsifiers on the other hand are generally prepared at a low ratio of fatty acid to polyamine suitable amines to form amides i str1 are hnr 1 r 2 where r 1 r 2 h ch 3 ch 3 ch 2 x c 6 h 5 c 6 h 11 x 1 20 the alkyl group can also contain one or more olefinic bonds the formation of imidazoline amides ii is limited to polyethylene amines and polyamines characterized by at least one ethylene diamine functional group with at least three hydrogens attached to the two nitrogens str2 compounds of this group which are able to give both polyamidoamines iiia and iiib and imidazoline amides ii are ethylene diamine diethylene triamine triethylene tetramine tetraethylene pentamine pentaethylene hexamine and higher homologues n aminoethyl propane diamine n n 39 diamonoethyl propane diamine and the n aminoethyl or n n 39 diaminoethyl substituted butane diamines pentane diamines and hexane.