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Abstract

Methods for preventing the penetration of toxic chemicals through the stratum corneum of the skin of a mammal are disclosed which employ, as a penetration prevention agent, at least one compound selected from the group consisting of compounds represented by the formula: ##STR1## wherein W.sub.1 is a divalent oxygen, sulfur or nitrogen radical, W.sub.2 and W.sub.3 are independently a divalent oxygen or sulfur radical, R' is an alkyl radical comprising from 1 to 4 carbon atoms, y is 0 or 1, R.sub.1 and R.sub.2 are alkyl radicals comprising from 1 to 10 carbon atoms and R and R.sub.3 are individually a hydrocarbyl radical containing from 1 to 20 carbon atoms or a heteroatom-substituted derivative thereof wherein at least one but not two adjacent carbon atoms may be replaced by a divalent oxygen or sulfur radical or by NR', wherein R' is hydrogen or R', n is an integer from 2 to 5 and compounds represented by the above formula in which the ring and/or R includes one to three carbon carbon double bonds.

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First Claim