RESIN BEADS, METHOD FOR PRODUCING RESIN BEADS, AND PRODUCT USING RESIN BEADS
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United States of America Patent
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Issued Date -
Feb 8, 2024
app pub date -
Sep 22, 2021
filing date -
Dec 23, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides resin beads that can provide various types of products, such as a cosmetic having excellent tactile impression, such as spreadability on the skin, moist feeling, and softness, and having high stability such that such tactile impression is kept over a long period of time, that can be substituted for resin particles composed of a synthetic material derived from petroleum, and that have favorable biodegradability. The present invention also provides various types of products, such as a cosmetic, using the resin beads. The resin beads are obtained by surface-treating, with a solid surface treatment agent, core beads formed with a resin containing cellulose as a main component, and have a cumulative 50% particle size on a volume basis of 50 μm or smaller, a degree of sphericity of 0.7 to 1.0, a degree of surface smoothness of 70 to 100%, and a degree of crystallinity of 60% or less. In addition, the present invention provides a product of any one of a cosmetic, a dermatological preparation, a paint, a shaped article, a film, a coating agent, and a resin composition which contain the resin beads.
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