Abstract:
Process for preparing high molecular weight polycarboxylic acid acylating agents by contacting chlorine with a reaction mixture comprising (1) high molecular weight monocarboxylic acid and ethylenically unsaturated low molecular weight mono- or polycarboxylic acid acylating agent or (2) high molecular weight aliphatic hydrocarbon, ethylenically unsaturated low molecular weight monocarboxylic acid acylating agent, and ethylenically unsaturated low molecular weight polycarboxylic acid acylating agent. Acylating agents thus produced have utility, for example, as intermediates in the preparation of acylated nitrogen compounds, esters, metal salts, and the like which are useful as additives in lubricants and fuels.
Abstract:
THIS INVENTION IS DIRECTED TO AN OIL SOLUBLE DISPERSANT AND TO A PROCESS FOR PREPARING SAID DISPERSANT WHICH COMPRISES CONTACTING AND REACTING AT LEAST ONE CARBOXYLIC ACYLATING AGENT HAVING AT LEAST ABOUT 30 ALIPHATIC CARBON ATOMS PER MOLECULE WITH EFFECTIVE AMOUNTS OF AT LEAST ONE HYDROXYL COMPOUND, AT LEAST ONE POLYOXYALKYLENE POLYAMINE HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 200 AND FROM ZERO TO ABOUT 4.0 EQUIVALENTS OF AT LEAST ONE ALKYLENE AMINE PER EQUIVALENT OF SAID CARBOXYLIC-ACYLATING AGENT. THE DISPERSANT OF THIS INVENTION IS PARTICULARLY USEFUL AS AN ADDITIVE FOR A VARIETY OF OLEAGINOUS MATERIALS INCLUDING, FOR EXAMPLE, FUELS, LUBRICATING OILS, HYDRAULIC FLUIDS AND THE LIKE.