Method for manufacturing resin beads, resin beads, and product employing resin beads
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United States of America Patent
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Jan 10, 2023
Grant Date -
Aug 25, 2022
app pub date -
Jul 7, 2020
filing date -
Jul 10, 2019
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Abstract
A method for producing resin beads providing various types of products, such as cosmetics, imparted with superior tactile impression, spreadability on skin, transparency, and product stability is provided. The resin beads containing a cellulose derivative as a main component can replace resin particles composed of a synthetic material derived from petroleum. The production method includes: preparing a suspension containing oil droplets containing the cellulose derivative and an organic solvent by mixing an oil phase containing the cellulose derivative and an organic solvent dissolving the cellulose derivative and having a water-solubility of 0.1 to 50.0 g, with an aqueous phase containing a dispersion stabilizer; and contracting the oil droplets by adding water to the suspension, satisfying expression (A) below as defined in the specification, until a content of the organic solvent in the suspension becomes equal to or less than the water-solubility of the organic solvent: (W/S)/T≤1.00 . . . (A).
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