설명(영) |
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The word wax originally referred to relatively high melting animal or vegetable-derived lipids. In modern usage, the term wax is applied to a wide variety of chemically different lipids. Included are animal waxes, plant waxes, mineral waxes, and petroleum waxes. Microcrystalline Wax is a high molecular weight petroleum wax. Animal, plant, and some mineral waxes are primarily esters of high molecular weight fatty alcohol with high molecular weight fatty acid. For example, the hexadecanoic acid ester of tricontanol is commonly reported to be a major component of beeswax.
The synthetic waxes included such diverse chemicals as polyethylene and hydrocarbon waxes derived from carbon monoxide and hydrogen (Fischer-Tropsch synthesis). Certain blends of chemicals useful for emulsification are sometimes referred to as emulsifying waxes.
Waxes find uses in all types of cosmetics to impart high viscosity to emulsions and suspensions and to harden lipid-based materials, such as lipsticks and hair pomades. |