×

Method of producing fine particles of organic material and electric twist ball display using the fine particles

  • US 20020033785A1
  • Filed: 09/13/2001
  • Published: 03/21/2002
  • Est. Priority Date: 09/20/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. A method of producing fine organic particles having a particle size of 20 μ

  • m to 300 μ

    m by precipitation in a liquid, said method comprising the steps of;

    preparing a precipitation liquid and a raw material solution having an organic raw material dissolved therein; and

    injecting a small amount of the raw material solution into the precipitation liquid to granulate fine organic particles in said precipitation liquid;

    wherein said raw material solution is prepared by dissolving the organic raw material in a low-boiling point solvent having a lower boiling point than that of said precipitation liquid and having a higher dissolvability for said organic raw material than that of said precipitation liquid.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×