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Title:
POWDER-CONTAINING COMPOSITION, PRODUCTION METHOD THEREFOR, AND COSMETIC PREPARATION
Document Type and Number:
WIPO Patent Application WO/2018/135626
Kind Code:
A1
Abstract:
A composition that comprises a solvent and, present in the solvent, the following: a powder bearing a first charge on the surface; an ionic polymer having a second charge, which is counter to the first charge; and polyvalent ions having the first charge. The powder and the ionic polymer have been bonded electrostatically and/or ionically. The ionic polymer and the polyvalent ions have been bonded electrostatically and/or ionically.

Inventors:
NASU Akio (2-1 Hayabuchi 2-chome, Tsuzuki-ku, Yokohama-sh, Kanagawa 58, 〒2248558, JP)
SATONE Hiroshi (UNIVERSITY OF HYOGO 2167, Shosha, Himeji-sh, Hyogo 80, 〒6712280, JP)
Application Number:
JP2018/001618
Publication Date:
July 26, 2018
Filing Date:
January 19, 2018
Export Citation:
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Assignee:
SHISEIDO COMPANY, LTD. (5-5 Ginza 7-chome, Chuo-ku Tokyo, 61, 〒1040061, JP)
International Classes:
C08L101/02; A61K8/19; A61K8/24; A61K8/27; A61K8/81; A61Q1/00; A61Q19/00; C08K3/02; C08K3/22
Domestic Patent References:
WO2016038317A12016-03-17
WO2011016404A12011-02-10
Foreign References:
JPS61286310A1986-12-16
Other References:
KIGUCHI, TAKAHIKO ET AL.: "Effects of Polyelectrolyte Dispersant Conformation and Magnesium Ion on Adsorption to Slurry Particles", JOURNAL OF THE SOCIETY OF POWDER TECHNOLOGY, vol. 49, 2012, Japan, pages 100 - 107, XP055505986
SATONE, HIROSHI: "Relation between Dispersion Stability of Slurry and Adsorption Phenomenon of Polymeric Dispersant", JOURNAL OF THE SOCIETY OF POWDER TECHNOLOGY, vol. 51, no. 4, 2014, Japan, pages 269 - 274, XP009515459, DOI: 10.4164/sptj.51.269
MORI, TAKAMASA ET AL.: "Effects of particle concentration and additive amount of dispersant on adsorption behavior of dispersant to alumina particles", JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, vol. 117, no. 8, 2009, pages 917 - 921, XP055505985
Attorney, Agent or Firm:
IWAHASHI Yuji (2-5-15, Shin-yokohama Kohoku-ku, Yokohama-sh, Kanagawa 33, 〒2220033, JP)
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