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Aerosol product, a process for the preparation of an aerosol product and apparatus for carrying out the method
Aerosol product, a process for the preparation of an aerosol product and apparatus for carrying out the method
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机译:气雾剂产品,一种气雾剂产品的制备方法以及实施该方法的设备
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摘要
The aerosol product, for exemple a cosmetic or pharmaceutical preparation, contains an active agent, a propelling agent and a solvent; with a view to protect the environment and the users the propelling agent is comprised exclusively of, helium, neon, argon, krypton or mixtures of these gases. A percentage of at least 80% by weight of argon with respect to the total weight of the propelling agent has proved to be particularly interesting. The method consist mainly in contacting the active agent and the solvent into an autoclave, introducing a compressed noble gas in a predetermined amount and collecting the mixture obtained. The mixing process may be repeated in other autoclaves with different noble gases. The device comprises mixtures (1, 2; 3) for storing the active agent and the solvent connected, as well as a pressure accumulator (a) for noble gases, to an autoclave (12) on which an outlet connexion (14) is fixed, above the ground. Several autoclaves (15, 18) may be provided as well as a filter having the shape of a candle (22, 10a), arranged after the last autoclave (18) and/or before the first autoclave (12).
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