168 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS Data on pigment wetting performance were presented utilizing a simple technique which permits the comparative evaluation of lanolin derivatives in a quantitative manner. The influence of lanolin derivatives on the rheological pattern of emul- sion systems was illustrated by the viscosity and stability behavior of these systems. Solubilizing and emulsifying effects of lanolin derivatives were dis- cussed, and formulas were presented illustrative of the principles in- volved. Finally, data on the spreading properties of several lanolin derivatives along with their practical applications were presented. (Received April 21, 1965) REFERENCES (1) Weitkamp, A. W., J. Am. Chem. Sac., 67,447 (1945). (2) Conrad, L. I., Am. Perfumer, 64, 177 (Sept. 1954). (3) British Patent//965,849 U.S. and other foreign patents pending. (4) Daniel, F. K., Q•c. Dig. Federation Paint • Varnish Production Clubs, 344, 635 (Sept. 1953). (5) Bews, I. C., and Fisk, N. R., Am. Perfumer Cosmetics, 79, 89 (Oct. 1964). (6) Conrad, L. I., Motiuk, K. and Maso, H. F., oeroc. Sci. Sect. Toilet Goods Assoc., 29, 14 (1958). (7) Conrad, L. I., Am. Perf. 71, 70 (June 1958). (8) Schulman, J. H., and Cockbain, E.G., Trans. Faraday Sac., 36,651 (1940). APPENDIX Acetulane Amerchol© L-101 Amerlate© P Modulan© Polylan© Ricilan© B Ricilan© C Solul•n© 16 Solulan© 97 Solulan © 98 Solulan© C-24 Viscolan © Waxolan© Raw Materials Used (A) Lanolin Derivatives* Acetylated lanolin alcohols Liquid multi-sterol extract lsopropyl lanolate Acetylated lanolin Lanolin alcohols linoleate Lanolin alcohols ricinoleate Acetylated lanolin alcohols ricinoleate Ethoxylated lanolin alcohols Completely acetylated, ethoxylated lanolin alcohol-esters Partially acetylated, ethoxylated lanolin alcohol-esters Ethoxylated cholesterol Lanolin oil Lanolin wax * The above products are manufactured and the Trade Marks are owned by American Cholesterol Products, Inc., Edison, N. J.

SURFACE EFFECT OF LANOLIN DERIVATIVES 169 Arlacel 165 Carbopol 941 Chlorhydrol 50% Emcol E-607-S Atlas G-1292 Hostaphat KL340 Microwax (m.p. 170øF) Ucon 50 HB •0 Veegum HV Oxy Red (B) Miscellaneous ingredients Glyceryl monostearate, acid type, self emulsifying, Atlas Chemical Industries. Carboxy vinyl polymer, B. F. Goodrich Chemical Co. Aluminum chlorhydroxide complex, Reheis Co., Inc. N-(Stearoyl colamino formyl methyl) pyridinium chlo- ride, Emulsol Division, Witco Chemical Co. Ethoxylated hydrogenated castor oil, Atlas Chemical Industries. Tertiary ester from o-phosphoric acid and lauryl tetra- glycol ether, Hostachem Corporation. Microcrystalline hydrocarbon wax, white, 170øF m.p., Bareco Wax Co. Polyalkylene glycol, Union Carbide Chemicals Co•npany. Magnesium alu•ninum silicate, R. T. Vanderbilt Co. Purified grade of ferric oxide, Whittaker, Clark and Daniels.