POROUS PARTICLE, COSMETIC COMPOSITION, AND PRODUCTION METHOD FOR POROUS PARTICLE
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Nov 9, 2022
filing date -
Nov 9, 2022
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Abstract
Porous particles contain a biodegradable polymer as a main component. The biodegradable polymer is an aliphatic polyester and/or a polysaccharide ester having a total degree of substitution of 0.7 or more and 3.0 or less. The porous particles have an average particle size of 0.08 μm or more and 100 μm or less, a sphericity of 0.7 or more and 1.0 or less, and a relative specific surface area of more than 3.0 and 20 or less. A cosmetic composition contains the porous particles.
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