MANUFACTURING PROCESS FOR COSMETIC CREAM 655 soaps of fatty acids:fatty acid complexes present as crystals in the water phase. Further, ammonium palmitate:palmitic acid complexes produce a more stable and permanent product structure and consistency than the stearate:stearic acid complexes. The emulsion forms rapidly and is best made under relatively low shear agitation. A 5-10 t• droplet size of the internal phase is optimum. Reasonable variations in other components did not affect the consistency of the finished product. The foregoing with the successful completion of a test loop and subsequent manufacture of cream on a continuous basis clearly indicated that the product under study was most suitable for development into a full-scale continuous manufacturing arrangement. Finally, it should be pointed out that this study was with a specific product and, as such, the investigators were not free to discuss or identify completely the full composition in this report. However, it is felt that the information selected for presentation is of such nature as to be valid and does give an idea of the techniques and testing involved in carrying out such a study. ACKNOWLEDGMENT The authors wish to express their gratitude to Mr. Kenneth Sidman and Dynatech Research Laboratories of Cambridge, Mass., for their in- valuable assistance in this study, particularly the calorimetry portions and related experiments. (Received February 3, 1972) REFERENCES (1) Becher, Paul, Emulsions Theory and Practice, Reinhold Publishing Corporation, New York, New York, 1965, pp. 212-4. (2) Emersol Stearic and Palraitic Acids, Bulletin EM-õ52C, Emery Industries, Inc., Cincinnati, Ohio, 1967, p. 17. (3) Handboob of Chemistry and Physics, 49th Ed., The Chemical Rubber Co., Cleveland, Ohio, 1968. (4) MarkIcy, K. S., Fatty Acids, Interscience Publishers, Inc., New York, 1947, pp. 117-9, 124. (5) Kench, J. E., and Malkin, T., The instability of ammonium salts of higher fatty acids, J. Che•n. Soc., 1959, 230. (6) deNavarre, M. G., The Chemistry and Manufacture of Cosmetics, D. Van Nostrand, New York, 1941, p. 246.

656 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Society of Cosmetic Chemists Award Sponsored by Perry Brothers Fragrances, Inc. The 1971 Society of Cosmetic Chemists Award sponsored by Perry Brothers Fragrances, Inc., has been presen. ted to Mr. James H. Baker of Gar-Baker Laboratories. The award, consisting of a scroll and a $1000 honorarium, is given annually to an individual or individuals who have made an outstanding contribution to microbiology as related to the manufacture and preser- vation of cosmetics. Formal presentation was made by the Society's President Dr. Martin M. Rieger at the May 25th luncheon session during the Society's Seminar in Los Angeles, Calif. LeJt to right: Mr. James H. Baker and Society President Dr. Maitin M. Rieger