Method of treating skin and hair with a self-heated cosmetic
AssigneeColgate-Palmolive Company
InventorsJames D. Barnhurst, Durland K. Shumway
Life of this patent
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Abstract
Nonaqueous compositions, especially cosmetic preparations such as shaving creams, are rendered self-heating by including therein a compound containing at least one boron-oxygen-boron linkage, such as triethoxyboroxine, which reacts exothermically with water or other protic material.
Claims8
A method of treating skin and hair with a self-heated cosmetic composition devoid of any substance capable of reaction with the boron compound defined below and selected from the group consisting of skin cleaner, skin cream, skin lotion, shampoo, shaving preparation and after-shave preparation comprising contacting the skin and hair, in the presence of water, with said composition containing about 20 to about 80% by weight of a boron compound of the formula:
- ##STR17## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are individually C.sub.2-8 alkyl, acetyl, mononuclear aryl, mononuclear aralkyl, mononuclear aroyl, cycloalkyl, or an ethoxylated derivative thereof, or R.sub.1 and R.sub.3 collectively or R.sub.2 and R.sub.4 collectively are:
- ##STR18## to collectively form cyclic compounds.
Dependencies are inferred from the claim text.