Title:
ASCORBIC ACID DISPERSION MATERIAL, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/158652
Kind Code:
A1
Abstract:
Provided is an ascorbic acid dispersion material which has higher chemical stability and has more superior feeling, including spreadability and smoothness, upon application onto skin.
An ascorbic acid dispersion material comprising ascorbic acid crystals dispersed in a solvent, said ascorbic acid dispersion material being characterized in that each of the ascorbic acid crystals has a flat plate-like shape and a thickness of 0.05 to 3 μm and the ascorbic acid crystals have an average particle diameter of 50 to 100 μm.
Inventors:
OTA TAKANORI (JP)
Application Number:
PCT/JP2016/059343
Publication Date:
October 06, 2016
Filing Date:
March 24, 2016
Export Citation:
Assignee:
OTA TAKANORI (JP)
International Classes:
A61K8/67; A61K8/04; A61K8/34; A61K9/10; A61K31/375; A61K47/10; A61P3/02; A61P17/18; A61Q19/00; A61Q19/08
Foreign References:
| JP2002241280A | 2002-08-28 | |||
| JP2008013493A | 2008-01-24 | |||
| JP2006160722A | 2006-06-22 | |||
| JP2007332094A | 2007-12-27 | |||
| JP2013166778A | 2013-08-29 | |||
| JPS5714587A | 1982-01-25 | |||
| JPH06508748A | 1994-10-06 |
Other References:
BOGUSLAWA WIERZBOWSKA ET AL.: "Continuous Mass Crystallization of Vitamin C in L(+)- Ascorbic Acid-Ethanol-Water System: Size-Independent Growth Kinetic Model Approach", CRYSTAL GROWTH AND DESIGN, vol. 11, no. 5, 2011, pages 1557 - 1565, XP055319902
Attorney, Agent or Firm:
MIYAGAWA Sosuke et al. (JP)
Miyagawa 壮輔 (JP)
Miyagawa 壮輔 (JP)
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