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Title:
ORGANIC-INORGANIC COMPOSITE PARTICLES, MANUFACTURING METHOD THEREFOR, AND COSMETIC
Document Type and Number:
WIPO Patent Application WO/2019/189692
Kind Code:
A1
Abstract:
Provided are spherical organic-inorganic composite particles that exhibit good biodegradability. Organic-inorganic composite particles according to the present invention contain 1-79 wt% of a silica component and 21-99 wt% of a biodegradable plastic. The organic-inorganic composite particles have an average particle diameter d1 of 0.5-25 μm, a true density of 1.03-2.00 g/cm3, and a sphericity of 0.80 or greater. A cosmetic in which the organic-inorganic composite particles possessing such characteristics are blended exhibits superior touch feel characteristics.

Inventors:
WATANABE SATOSHI (JP)
ENOMOTO NAOYUKI (JP)
SHIMAZAKI IKUKO (JP)
Application Number:
PCT/JP2019/013871
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
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Assignee:
JGC CATALYSTS & CHEMICALS LTD (JP)
International Classes:
C08L1/02; A61K8/19; A61K8/73; A61Q1/00; A61Q19/00; C08J3/16; C08K3/36; C08L101/16
Foreign References:
JP2018172578A2018-11-08
JP2017186187A2017-10-12
JP2005128128A2005-05-19
JP2008273780A2008-11-13
JP2016002739A2016-01-12
JP2013136732A2013-07-11
JP2013527204A2013-06-27
JP2014043566A2014-03-13
JP2013527204A2013-06-27
JPH07196312A1995-08-01
JP2002265257A2002-09-18
Other References:
"Japanese Standards of Quasi-drug Ingredients", 16 June 2006, YAKUJI NIPPO, LIMITED
"International Cosmetic Ingredient Dictionary and Handbook", 2006, THE COSMETIC, TOILETRY, AND FRAGRANCE ASSOCIATION
See also references of EP 3778749A4
Attorney, Agent or Firm:
OKUMACHI Tetsuyuki (JP)
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