Patent ID: 6218348
Filing Date: 2001-04-17
Classification: C11D

Abstract:
A process for making bar composition comprising:(a) 25 to 85% by weight fatty acid soap;(b) polyalkylene glycol having MW of 400 to 25,000 Dalton;(c) C.sub.8 to C.sub.20 free fatty acid;(d) 0.1 to 5% by wt. of a salt of protic acid having pKa1 less than 6;wherein the amount of polyalkylene glycol (b) present in the bar is sufficient to improve skin condition in controlled application wash tests either by reducing the barrier damage as measured by transepidermal water loss, increasing skin hydration as measured by skin conductivity/capacitance, and/or by reducing visual dryness;wherein, the molar equivalents ratio of free fatty acid (c) to protic acid salt (d) is between 0.5:1 to 3:1, and the weight ratio of free fatty acid to the sum of weights of polyalkylene plus organic protic acid salt, ((b) & (d)) is 1:2 to 2:1;wherein said process comprises mixing ingredients (a)-(d) in situ at temperature of 25-45.degree. C. until a uniform mixture is obtained and subsequently producing bars.