RESIN BEADS, METOD FOR PRODUCING RESIN BEADS AND PRODUCT USING RESIN BEADS

    公开(公告)号:US20230136180A1

    公开(公告)日:2023-05-04

    申请号:US17905233

    申请日:2021-02-25

    发明人: Takashi ABE

    摘要: The present invention provides resin beads that can provide various types of products such as cosmetics which are unlikely to generate an odor and have superior tactile impression and spreadability on the skin and that can be substituted for resin particles composed of a synthetic material derived from petroleum, and the present invention also provides various types of products such as cosmetics using the resin beads. The resin beads are formed with a resin containing a cellulose derivative as a main component. In the resin beads, the cellulose derivative is at least one selected from the group consisting of cellulose acetate, cellulose acetate propionate, ethyl cellulose, and hydroxypropyl methyl cellulose, the volume average particle diameter is 50 μm or smaller, the degree of sphericity is 0.7 to 1.0, the degree of surface smoothness is 80 to 100%, the acetyl group content ratio is 15% by mass or less, and the propionyl group content ratio is 10% by mass or more. 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.

    Cosmetic molded article and method for manufacturing same

    公开(公告)号:US11458088B2

    公开(公告)日:2022-10-04

    申请号:US16755800

    申请日:2018-10-24

    发明人: Yasuyuki Isono Yu Aso

    摘要: The present invention provides a cosmetic shaped product: which is substantially formed with relatively low-molecular-weight hyaluronic acid or a water-soluble salt thereof having a high penetrability into the skin; which is easily soluble to water; and which has satisfactory handling properties, and a method for producing the cosmetic shaped product. There is provided a cosmetic shaped product being a sponge-like shaped body formed with at least one polyanionic polysaccharide of hyaluronic acid and a water-soluble salt thereof each having an average molecular weight of 30,000 or lower, the sponge-like shaped body having a bulk specific gravity of 5 to 500 mg/mL. This cosmetic shaped product can be produced by freeze-drying an aqueous solution having a content of the polyanionic polysaccharide of 0.5 to 30% by mass.

    METHOD FOR MANUFACTURING RESIN BEADS, RESIN BEADS, AND PRODUCT EMPLOYING RESIN BEADS

    公开(公告)号:US20220267573A1

    公开(公告)日:2022-08-25

    申请号:US17597111

    申请日:2020-07-07

    发明人: Takashi ABE

    摘要: The present invention provides a method for producing resin beads which can provide various types of products, such as cosmetics, imparted with superior tactile impression, spreadability on the skin, transparency, and product stability, and which can be substituted for resin particles composed of a synthetic material derived from petroleum. The method is a method for producing resin beads containing a cellulose derivative as a main component. The production method includes: a suspension preparation step of mixing an oil phase containing the cellulose derivative and an organic solvent that dissolves the cellulose derivative, the organic solvent having a water-solubility of 0.1 to 50.0 g, and an aqueous phase containing a dispersion stabilizer, thereby preparing a suspension containing oil droplets containing the cellulose derivative and the organic solvent; and an oil droplet contraction step of adding water to the suspension, thereby contracting the oil droplets, wherein the water is added to the suspension in such a way as to satisfy the following expression (A) 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), wherein W: an addition amount of water (parts by mass),
    S: an amount of the suspension (parts by mass), and
    T: a time (minutes) required for addition.

    BIO-BASED POLYURETHANE RESIN, BIO-BASED POLYURETHANE RESIN SOLUTION, AND PRINTING INK

    公开(公告)号:US20210115278A1

    公开(公告)日:2021-04-22

    申请号:US16606591

    申请日:2018-04-24

    摘要: Provided are: a polyurethane resin having a high degree of biomass, the polyurethane resin useful as a binder for a printing exhibiting excellent adhesion performance particularly to biomass plastic base materials and having excellent dispersibility of a pigment contained at a high concentration; and a printing ink using the polyurethane resin. A bio-polyurethane resin obtained by reacting a bio-polyol (A) and an isocyanate (B), wherein the (A) is a bio-polyester polyol being a polymerized product of a diol component (a) and a dicarboxylic acid component (b) each containing a plant-derived component, the (a) contains at least one selected from ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,10-decanediol, and dimer diols each derived from a plant, the (b) contains plant-derived succinic acid and an additional dicarboxylic acid, and plant-derived succinic acid/additional carboxylic acid=98/2 to 5/95, and a content of plant-derived components is 35% or more based on 100% by mass of the bio-polyurethane resin, and a printing ink.