Emulsification method using propylene glycol hyaluronate
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United States of America Patent
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Mar 23, 2004
Grant Date -
N/A
app pub date -
Jun 30, 2000
filing date -
Dec 14, 1999
priority date (Note) -
Expired
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Abstract
Disclosed are propylene glycol hyaluronate esters having an esterification degree of 10-90% and a limiting viscosity of 3-35 dL/g as well as skin conditioning methods, moisturizing methods and emulsifying methods using said propylene glycol hyaluronate esters. Propylene glycol hyaluronate esters of the present invention are compounds showing excellent viscosity stability in low-pH systems and cation-containing systems and also showing high emulsifiability, hydration power and moisturizing effect.
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