USE OF CARBOXYALKYL CELLULOSE ESTERS, SUCH AS CARBOXYMETHYL CELLULOSE ACETATE BUTYRATE, TO FORM AQUEOUS DISPERSIONS OF HYDROPHOBIC MATERIALS IN WATER

摘要

The present invention relates to methods of dispersing hydrophobic materials into water, using carboxyalkyl cellulose esters such as carboxymethyl cellulose acetate butyrate (CMCAB), and to the resulting aqueous dispersions. The invention relates also to finished coating films made from such dispersions, which exhibit reduced water sensitivity without increasing the film dry time beyond that obtained from aqueous dispersions using conventional surfactants.