METHOD FOR PRODUCING VESICLE COMPOSITION
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United States of America Patent
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Issued Date -
Dec 18, 2014
app pub date -
Feb 13, 2013
filing date -
Feb 13, 2012
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Abandoned
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Abstract
Provided is a method for producing a vesicle composition having an aqueous phase as a continuous phase, containing: an oil phase-preparation step for dissolving an oil phase containing components (A) to (D) at a temperature of equal to or higher than melting point of the oil phase, the components (A) to (D) being: the component (A): a fatty acid of total carbon number of from 12 to 40; the component (B): a tertiary amine compound of total carbon number of from 8 to 75; the component (C): an organic acid of total carbon number of from 1 to 10; and the component (D): the first polyol, an emulsification step for adding the aqueous phase to the oil phase obtained in the oil phase-preparation step while being mixed; an addition step for adding a component (D′): the second polyol, after a quantity of the aqueous phase added to the oil phase is equal to or larger than 1 time by mass of a quantity of the oil phase; and cooling step for cooling the obtained composition after the emulsification step.
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