Sekisui Plastics Co., Ltd.
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Particle Characteristic Control

Techpolymer allows for control of various physical properties in order to provide added value to a variety of applications. Many of our grades with adjusted refractive indexes are used in display applications. By adjusting the refractive index of particles, we have been able to add discretionary light dispersion effects. In addition, for coating applications, we offer a variety of grades with adjusted particle hardness, while using one of the pliant grades allows for a more smooth and pleasantly textured coated surface.

Refractive Index Adjustment

Refractive Index Adjustment

We offer a wide variety of grades with adjusted refractive indexes.
Refractive indexes can be adjusted within the ranges listed to the right.

By adjusting particle size and refractive index, we are able to control a variety of light characteristics.

Expected Effects
  • We offer a dispersion material that is suitable for a wide range of transparent base materials.
  • We also offer a dispersion material that is suitable for a wide range of binders.
  • High dispersion effects
  • High light source concealment effects

Hardness Adjustment

We also offer a variety particles of differing softness through combination with various base materials.
A delicate balance between softness and reversion ratio allows for effective control of scratches, improving the scratch resistance of coatings.
We can refine the texture of a variety of soft particles to suit your needs.

  MBX-8 ABX-8 AFX-8
S10 strength
(kgf/mm²)
2.50 1.05 0.55
Reversion Ratio (%) 5.3 17.6 20.0
Expected Effects
  • Provides abrasion resistance and damage protection.
  • Also contributes to the texture (soft feeling) of coatings and cosmetic films.

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