New emulsifier for emulsions asphaltic of bitumens modified and its method of manufacturing

摘要

New emulsifier for the manufacture of asphalt emulsions based on modified bitumens and process for its manufacture. The emulsifier according to the invention is a polyamide consisting of units of carboxylic acids and amines referred to below in the following proportions: unsaturated fatty acids, 2-6.2 %; added oleic acid, 45-60 %; tallol fatty acids, 3-7 %; diethylenetriamine, 5-10 %; triethylenetriamine, 4-8 %; triethylenetetramine, 16-20 %. This new emulsifier is capable of emulsifying modified agglomerants, at the same time imparting to the emulsion a rate of destruction such that it makes it possible to manufacture microagglomerates while cold.