Claims
- 1. Spherical composite particles having an average particle diameter in a range from 1.1 to 100 μm, and formed of inorganic particles having an average particle diameter in a range from 5 to 600 nm, and resin particles joined with the inorganic particles and having an average particle diameter substantially same as that of the inorganic particle and in a range from 10 to 500 nm, said resin particles being formed of a resin having elasticity with 100% modulus in tension in a range from 200 to 3000 N/cm2.
- 2. Spherical composite particles according to claim 1, wherein said resin particles are selected from the group consisting of polyurethane, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, nylon elastomer, polyester elastomer, polyolefin elastomer, silicone elastomer, nylon, polyester, polyolefin, polymethyl methacrylate, vinyl acetate/acrylic acid ester copolymer, ethylene/vinyl acetate copolymer, acrylic acid ester, polyvinyl alcohol, polystyrene, cellulose, and Cyamoposis gum.
- 3. Spherical composite particles according to claim 2, wherein an amount of the inorganic particles in the spherical composite particles is in a range from 0.5 to 99.5 weight %.
- 4. Spherical composite particles according to claim 3, wherein said average particle diameter of the resin particles is in a range from 20 to 400 nm, and said average particle diameter of the inorganic particles is in a range from 10 to 100 nm.
- 5. Cosmetics comprising the spherical composite particles according to claim 1 in a range from 0.1 to 80 weight %, and a material used as cosmetics.
- 6. A method of manufacturing spherical composite particles comprising:
dispersing in a liquid inorganic particles having an average particle diameter in a range from 5 to 600 nm, and resin particles having an average particle diameter substantially same as that of the inorganic particle in a range from 10 to 500 nm, and spraying-drying the inorganic particles and the resin particles in the liquid to join the inorganic particles and the resin particles together to thereby form spherical composite particles having an average particle diameter in a range from 1.1 to 100 μm.
- 7. A method of manufacturing spherical composite particles according to claim 6, further comprising heating the spherical composite particles at about a glass transition temperature of the resin particles to join the particles together.
- 8. A method of manufacturing spherical composite particles according to claim 6, wherein said liquid is at least one of water and organic solvent, and a total concentration of the inorganic fine particles and the resin particles in the liquid is in a range from 2 to 50 wt %.
- 9. A method of manufacturing composite particles according to claim 6, wherein said resin particles is formed of a resin having elasticity with 100% modulus in tension in a range from 200 to 3000 N/cm2.
- 10. A method of manufacturing spherical composite particles according to claim 6, wherein said resin particles are selected from the group consisting of polyurethane, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, nylon elastomer, polyester elastomer, polyolefin elastomer, silicone elastomer, nylon, polyester, polyolefin, polymethyl methacrylate, vinyl acetate/acrylic acid ester copolymer, ethylene/vinyl acetate copolymer, acrylic acid ester, polyvinyl alcohol, polystyrene, cellulose, and Cyamoposis gum.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-064117 |
Mar 2000 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This is a continuation in part application of Ser. No. 09/789,842 filed on Feb. 22, 2001.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09789842 |
Feb 2001 |
US |
Child |
10379720 |
Mar 2003 |
US |