Title:
COSMETIC INGREDIENT USING CORE-CORONA POLYMER PARTICLES AND OIL-IN-WATER EMULSION COSMETIC
Document Type and Number:
WIPO Patent Application WO/2019/182127
Kind Code:
A1
Abstract:
Provided are core-corona polymer particles that are superior in terms of emulsion stability and the sensation upon the use thereof, a cosmetic ingredient using said particles, and an oil-in-water emulsion cosmetic. The core-corona polymer particles are obtained by radical polymerization, under (A) to (D) conditions, of a polyethylene oxide macromonomer represented by general formula (1) and of one or more hydrophobic monomers represented by general formulas (2) and (3).
Inventors:
SUGIYAMA YUKI (JP)
FUKUHARA RYUSHI (JP)
FUKUHARA RYUSHI (JP)
Application Number:
PCT/JP2019/012146
Publication Date:
September 26, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
SHISEIDO CO LTD (JP)
International Classes:
C08F290/06; A61K8/04; A61K8/81; A61Q19/00
Domestic Patent References:
| WO2016021338A1 | 2016-02-11 | |||
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| WO2006051746A1 | 2006-05-18 |
Foreign References:
| JPH10268576A | 1998-10-09 | |||
| JP2012241004A | 2012-12-10 | |||
| JP2014534275A | 2014-12-18 | |||
| JP2005015623A | 2005-01-20 | |||
| JP2015091964A | 2015-05-14 | |||
| JPH01284516A | 1989-11-15 | |||
| JP2002322219A | 2002-11-08 | |||
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Other References:
KANEDA, ISAMU ET AL.: "Swelling behavior of PMMA-g-PEO microgel particles by organic solvents", JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 274, 2004, pages 49 - 54, XP002751679, DOI: 10.1016/j.jcis.2003.11.004
See also references of EP 3770196A4
See also references of EP 3770196A4
Attorney, Agent or Firm:
IWAHASHI Yuji (JP)
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