Lever Brothers Company

James J Corr

William R Narath

Mark S Dobrovolny

Richard F Theiler

Lynn H Lander

Michael L Caswell

Isethionate salts have been discovered to provide protection for the skin against damage from contact with soap or other surfactants. A mild to the skin cleaning composition is provided comprising fatty acid soap in amounts greater than 25% and an isethionate salt such as sodium isethionate, the ratio of soap to isethionate ranging from 1:2 to abut 200:1. Sodium C.sub.8 -C.sub.18 acyl isethionate may be incorporated as a further component into the cleaning composition, although in an amount not to exceed that of the soap.

Cleaning compositions with skin protection agents

A process is disclosed for preparing a toilet bar composition whose components comprise a fatty acid soap and a C.sub.10 -C.sub.16 acyl isethionate salt in the ratio of about 20:1 to 1:0.98, respectively. The blend is charged with an initial amount of water from 12 to 30% by weight of the composition. Heating and mixing are terminated after the blend has passed a second peak in viscosity, termination occurring between about 500 and 6,000 centipoise at 35 sec.sup.-1 shear rate at 210.degree.-218.degree. F. The final moisture content of the blend must be between 8.5 to 20% water.

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Huntington, NY, United States of America

James J Corr