| abstract |
PURPOSE: To prepare a hydrotalcite-coated powder excellent in the adsorption capacity, etc., and useful for an external skin preparation, deodorant, buccal compsn., etc., by coating the surfaces of particles of a power with a powder contg. hydrotalcite as the essential component. n CONSTITUTION: A powder selected from the group consisting of nylon 6, polyethylene, polystyrene, polytetrafluoroethylene, aluminum sulfate, heavy magnesium carbonate, etc., is prepd. in advance. The surfaces of particles of the powder are coated with a powder of hydrotalcite or a mixture thereof with at least one other powder (e.g. bentonite) to give a hydrotalcite-coated powder. An example of the method for carrying out the coating is ball mill mixing. The coated powder is excellent in the adsorption capacity of skin egesta such as lower fatty acids and lipid peroxide, water absorbing and releasing properties, deodrizing effect, etc. n COPYRIGHT: (C)1991,JPO&Japio |