Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2007-10-30
2007-10-30
Kiliman, Leszek (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S403000, C428S404000, C428S405000, C428S407000, C427S419100
Reexamination Certificate
active
10484706
ABSTRACT:
The present invention provides a hybrid material comprised of an active component for raw materials for cosmetics and a layered metal hydroxide, showing good stability, low toxicity, low irritation, good sustained release and good dispersibility. The present invention provides a method for preparing the hybrid material, using the coprecipitation method, the ion-exchange method or the adsorption method, depending on properties of the active component for raw materials for cosmetics. The method may further comprise a step of coating the surface of the hybrid material after preparation of the hybrid material. The present invention provides cosmectics comprising the above hybrid material.
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patent: WO 96/16634 (1996-06-01), None
Meyn, M., et al., “Anion-Exchange Reactions of Layered Double Hydroxides”, Inorganic Chemistry, American Chemical Society, Easton, US, vol. 29, 1990, pp. 5201-5207, XP008004649.
Meyn, M., et al. “Anion-Exchange Reactions of Hydroxy Double Salts”, Inorganic Chemistry, American Chemical Society, Easton, US, vol. 32, No. 7, 1993, pp. 1209-1215, XP000568280.
Choy Jin Ho
Han Yang Su
Hwang Sung Ho
Lee Chi Won
Lee Sun Young
Kiliman Leszek
Nanohybrid Co., Ltd.
Rothwell Figg Ernst & Manbeck
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