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Title:
CORE-CORONA TYPE MICROGEL EMULSIFIER, AND OIL-IN-WATER EMULSION COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/094298
Kind Code:
A1
Abstract:
The present invention is a core-corona type microgel emulsifier formed from a copolymer obtained by polymerizing a polyethylene oxide macromonomer, a hydrophobic monomer, and a cross-linking monomer under specific conditions. The present invention is also an oil-in-water emulsion composition characterized in that the core-corona type microgel emulsifier is used to emulsify the oil-in-water emulsion composition. The purpose of the present invention is to provide a novel core-corona type microgel emulsifier used for producing an oil-in-water emulsion composition which exhibits excellent emulsion stability and temporal stability, causes little skin irritation or feeling of coarseness, is not powdery or sticky when applied, is fresh, and exerts an aroma-sustaining effect. Another purpose of the present invention is to provide an oil-in-water emulsion composition which is emulsified by means of the aforementioned emulsifier.

Inventors:
SUGIYAMA YUKI (JP)
SATO TOMOKO (JP)
SHOJI KEN (JP)
Application Number:
PCT/JP2012/076781
Publication Date:
June 27, 2013
Filing Date:
October 17, 2012
Export Citation:
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Assignee:
SHISEIDO CO LTD (JP)
SUGIYAMA YUKI (JP)
SATO TOMOKO (JP)
SHOJI KEN (JP)
International Classes:
C09K23/52; A61K8/06; A61K8/81; A61Q1/00; A61Q5/00; A61Q17/04; A61Q19/00; C08F290/06; C09K23/00; C09K23/34
Domestic Patent References:
WO2006051746A12006-05-18
Foreign References:
JP2007238521A2007-09-20
JP2007302712A2007-11-22
JP2007302566A2007-11-22
JP2007126394A2007-05-24
JP2007106694A2007-04-26
JP2005015623A2005-01-20
JP2656226B21997-09-24
JP2001518111A2001-10-09
JP2007332037A2007-12-27
JP2006036763A2006-02-09
JP2008291026A2008-12-04
JPH11158030A1999-06-15
JP2009501256A2009-01-15
JP2006161026A2006-06-22
JP4577721B22010-11-10
Other References:
B. BINKS, ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2003, pages 100 - 102
MUKUL M, SHARMA, JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 157, 1993, pages 244 - 253
J. AGRIC. FOOD CHEM., vol. 59, 2011, pages 263 - 2645
J. COLLOID INTERFACE SCI., vol. 274, 2004, pages 49
See also references of EP 2796193A4
Attorney, Agent or Firm:
Toshihiko Takano (JP)
TAKANO TOSHIHIKO (JP)
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