Title:
LAMELLAR DOUBLE HYDROXIDE INCORPORATING ASCORBIC ACID, AND COSMETIC COMPOSITION CONTAINING THE SAME
Document Type and Number:
Japanese Patent JP2004091421
Kind Code:
A
Abstract:
To provide a lamellar double hydroxide incorporating ascorbic acid or its derivative with the same effects by intercalation.
The lamellar double hydroxide has the general formula: [M2+1-xM3+x(OH)2]x+[An-x/n-yH2O]x-, wherein M2+ is at least one kind of bivalent metallic ion selected from among Mg, Fe, Zn, Cu and Co ; M3+ is at least one kind of trivalent metallic ion selected among among Al, Fe, Co and Ti ; An- is at least one kind of n-valent anion selected from among OH-, F-, Cl-, NO3-, CO32-, SO42-, ascorbic acid, and its derivatives with the same effects; and at least a part of An-'s is ascorbic acid or its derivative with the same effects.
Inventors:
NARITA EIICHI
HIRAHARA HIDETOSHI
AIZAWA SUMIO
MURAKAMI MASAHIKO
IKEMATSU DAISAKU
HIRAHARA HIDETOSHI
AIZAWA SUMIO
MURAKAMI MASAHIKO
IKEMATSU DAISAKU
Application Number:
JP2002257221A
Publication Date:
March 25, 2004
Filing Date:
September 03, 2002
Export Citation:
Assignee:
TAYCA CORP
International Classes:
C07D307/62; A61K8/00; A61K8/26; A61K8/27; A61K8/67; A61Q1/00; A61Q1/02; A61Q1/12; A61Q19/00; (IPC1-7): C07D307/62; A61K7/00; A61K7/021; A61K7/48
Attorney, Agent or Firm:
Akaoka Michio
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