Surfactants for improving the gel properties of clay minerals in coating compositions

摘要

This invention is to surfactant compositions which are organic salts of a polyamine and a carboxylic acid. The polyamine has the structure: ##STR1## wherein R is (i) alkyl or alkenyl containing from about 10 to about 22 carbon atoms or (i) R'--O--CH2CH2CH2-- wherein R' is alkyl containing from about 8 to about 22 carbon atoms;PP A is a divalent hydrocarbyl group containing about 2 to about 6 carbon atoms; PPand n is an integer from about 1 to about 3. P PThe carboxylic acid has the structure:PPR"- -COOH PPwherein R" is alkyl or alkenyl containing about 6 to about 22 carbon atoms.PPThe surfactants may contain polar activators.PPThis invention is also to compositions containing asphalt, a clay mineral, and the above described surfactant.