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Title:
OIL-IN-WATER TYPE EMULSION COMPOSITION HAVING ACRYLIC TERPOLYMER, AND ITS USAGE, ESPECIALLY PHARMACEUTICAL APPLICATION
Document Type and Number:
Japanese Patent JP2000290459
Kind Code:
A
Abstract:

To obtain an oil-in-water type emulsion composition free from an emulsifying surfactant, excellent in stability, and capable of exhibiting properties of cosmetics by including a specific terpolymer and specifying the weight ratio of the terpolymer to the oil phase.

This water-in-oil type emulsion composition is obtained by dispersing the following acrylic terpolymer in a medium in which an oil phase is dispersed in an aqueous phase, in such a manner that the weight ratio of the terpolymer to the oil phase (terpolymer/oil phase) is 1/50 to 1/125. The acrylic terpolymer consists of (A) about 20-70 wt.%, preferably 25-55 wt.% of an carboxylic acid having α,β-ethylenic unsaturated structure, (B) about 20-80 wt.%, preferably 30-65 wt.% of a non-surface active monomer having an ethylenic unsaturated structure other than the component A and (C) about 0.5-60 wt.%, preferably 10-50 wt.% of a nonionic urethane monomer having a mono-ethylenic unsaturated structure, which is a reaction product of a nonionic, amphipathic mono-hydroxy compound with an isocyanate.


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Inventors:
SIMON PASCAL
BORDEAUX DOMINIQUE
Application Number:
JP2000065490A
Publication Date:
October 17, 2000
Filing Date:
March 09, 2000
Export Citation:
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Assignee:
OREAL
International Classes:
A61K8/72; A61K8/00; A61K8/06; A61K8/81; A61K8/89; A61K8/891; A61K8/92; A61K9/107; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/10; A61Q1/14; A61Q5/00; A61Q19/00; C08F2/16; C08F290/06; C08L25/08; C08L25/16; C08L27/08; C08L31/04; C08L33/02; C08L33/08; C08L33/10; C08L33/20; C08L35/00; C08L83/04; (IPC1-7): C08L33/02; A61K7/00; A61K7/02; A61K7/025; A61K7/06; A61K7/48; C08F290/06; C08L25/08; C08L25/16; C08L27/08; C08L31/04; C08L33/08; C08L33/10; C08L33/20; C08L35/00; C08L83/04
Attorney, Agent or Firm:
Masatake Shiga (7 outside)



 
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