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Submicron sized spherical polymer particles with a hollow interior.
The composition is cross-linked polystyrene.

Fine particles


  1. (1) Low refractive index and low permittivity properties from hollow structure.
  2. (2) The specific density of the particles is low due to the hollow structure.
  3. (3) Expected to improve resin formulating processes due to good compatibility from the shell of the particles formed from resin composition.

Low permittivity properties

Measured the permittivity of particles at 1GHz to evaluate the effectiveness of the hollow structure.
Evaluations results confirm the hollow structures lower the permittivity.
Expected to have lower permittivity than inorganic materials.

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