Title:
MICROGEL SWELLABLE IN ORGANIC SOLVENTS AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2006/051746
Kind Code:
A1
Abstract:
A microgel swellable in organic solvents, which consists of a copolymer obtained by radical-polymerizing a specific polyethylene oxide macromonomer with a specific hydrophobic monomer and a specific crosslinking monomer in a water/ethanol mixed solvent on the condition that: (A) the charge ratio of the polyethylene oxide macromonomer to the hydrophobic monomer is 1:10 to 1:250 by mole, (B) the charge of the crosslinking monomer is 0.1 to 1.5% by mass based on the charge of the hydrophobic monomer, and (C) the water/ethanol ratio of the mixed solvent is 90 to 30 : 10 to 70 by volume at 20&ring C. The invention aims at providing a novel microgel swellable in organic solvents, a process for the production thereof, and cosmetics containing the copolymer constituting the microgel.
Inventors:
HIWATARI YOSHIKO (JP)
SUZUKI YUKI (JP)
KANEDA ISAMU (JP)
UEDA YUMI (JP)
NAKANISHI YUKO (JP)
KOGA NOBUYOSHI (JP)
SUZUKI YUKI (JP)
KANEDA ISAMU (JP)
UEDA YUMI (JP)
NAKANISHI YUKO (JP)
KOGA NOBUYOSHI (JP)
Application Number:
PCT/JP2005/020341
Publication Date:
May 18, 2006
Filing Date:
November 07, 2005
Export Citation:
Assignee:
SHISEIDO CO LTD (JP)
HIWATARI YOSHIKO (JP)
SUZUKI YUKI (JP)
KANEDA ISAMU (JP)
UEDA YUMI (JP)
NAKANISHI YUKO (JP)
KOGA NOBUYOSHI (JP)
HIWATARI YOSHIKO (JP)
SUZUKI YUKI (JP)
KANEDA ISAMU (JP)
UEDA YUMI (JP)
NAKANISHI YUKO (JP)
KOGA NOBUYOSHI (JP)
International Classes:
C08F290/06; A61K8/81; A61Q19/00; B01J13/00
Domestic Patent References:
| WO2003062288A1 | 2003-07-31 |
Foreign References:
| JP2001316435A | 2001-11-13 | |||
| JP2001215456A | 2001-08-10 | |||
| JP2001323035A | 2001-11-20 | |||
| JPH10286451A | 1998-10-27 | |||
| JP2002241216A | 2002-08-28 | |||
| JP2005015623A | 2005-01-20 |
Attorney, Agent or Firm:
Takano, Toshihiko c/o TAKANO & CO. (32-802 Kitamach, Shinjuku-ku Tokyo 34, JP)
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