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Cosmetic Preparations of Lipid Mixtures

June 6, 2013

• US Patent No. 8,435,546 B2; Beiersdorf AG, Hamburg, has patented a cosmetic, dermatological or pharmaceutical preparation that is comprised of (a) one or more lipids, which comprise at least one lipid selected from mineral oils, cetearyl isononanoate, caprylic/capric triglycerides, ethylhexyl cocoate, octyldodecanol, cyclic silicone oils, and linear silicone oils; (b) one or more waxes comprising at least one wax selected from beeswax and other insect waxes, paraffin waxes, synthetic waxes, chemically-modified natural waxes, triglyceride waxes, fatty acids, fatty alcohols, candelilla waxes, carnauba waxes, Japan wax, esparto grass wax, cork wax, rice wax, sugar cane wax, flower waxes, leaf waxes from conifers, coffee wax, flax wax, and sesame wax; and (c) one or more gases. The preparation is obtained by a process which comprises melting a mixture of (a) and (b); incorporating (c) into the melted mixture of (a) and (b) using a mixer; and cooling the mixture to occlude (c) within the mixture. Gas bubbles in the preparation are from 0.5 μm to 50 μm in size.
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