Honeywell International Inc.

Allied Corporation

Michael A Kocur

George Leotsakos

Wayne M Gravatt

Christopher P Smith

Herbert K Reimschuessel

Aqueous wax dispersions useful as surface modifiers for paints, inks and coatings. More particularly, aqueous particulate wax dispersions useful as surface modifiers to provide improved properties in primers, paints, inks and other coating formulations. The dispersions are stable, substantially homogenous, have a high solids concentration at low viscosities, and comply with the applicable FDA regulations for use in food packaging applications.

Wax dispersion formulations, method of producing same, and uses

The preparation of anhydrous, pure, crystalline N-(3-chloro-2-hydroxypropyl) trialkylammonium salts is disclosed by a process entailing reaction of epichlorohydrin with a trimethylammonium salt in an organic solvent which is a solvent for the two reactants and a non-solvent for the reaction product. A fine crystalline, chemically pure, anhydrous N-(3-chloro-2-hydroxypropyl) trimethylamine hydrochloride is produced by a process that does not entail an aqueous medium or the use of gaseous trimethylamine. The process comprises reacting trimethylammonium chloride with epichlorohydrin in an organic solvent which is a solvent for either of the two reactants and a non-solvent for the reaction product. Though a number of organic solvents may be used, it was found that chloroform was particularly suited. The reaction proceeds readily at temperatures within the range of 0.degree. to 50.degree. C. and results, depending on the reaction conditions, in 80% to 97% yields of pure N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride with respect to the trimethylamine hydrochloride. The trimethylamine hydrochloride is the preferred starting material, however, the process may be applied to other trialkylamine hydrochlorides such as those containing alkyl groups with 2 to 12 carbon atoms, or those containing different alkyl groups. Furthermore, the process may also be applied to other trialkylammonium salts, such as other halides, nitrates, sulfates and perchlorates.

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Union, NJ, United States of America

Michael A Kocur