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Chemicals

Chemicals

Calcium carbonate

Activated colloidal Calcium carbonate "CALSEEDS®"

Our Activated colloidal Calcium carbonate "CALCEEDS" series is produced by our unique technology and has excellent dispersibility.

CALCEEDS®

Mainly used for rubber to improve elastic modulus, tensile strength and hardness.
It can be used for high-ratio formula due to its excellent dispersibility.

P

Mainly used for plastics.
The product is most suitable for PVC to improve weatherability, heat resistance, surface gloss and surface smoothness.

PL・PL-10・AS

Mainly used for PVC / Acrylic sol, sealants and paints to improve viscosity, thixotropy, discharge, anti-slip and storage stability.
AS is specialized for anti-slip property.

PLS505

Suitable used for sealants and adhesives.
It improves viscosity and storage stability.

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Typical data
  CALSEEDS P PL PL-10 AS PLS505
Screen residue (45μm)(%) 0.01 0.01 0.01 0.01 0.01 0.01
Loss on drying(%) 0.5 0.2 0.2 0.2 0.2 0.2
Whiteness(%) 97.7 97.4 96.8 97.1 96.9 96.8
pH(-) 9.7 10.7 10.6 10.6 10.7 10.5
Oil absorption(ml/100g) 68 26 23 24 24 25
Bulk density(g/ml) 0.38 0.55 0.62 0.54 0.52 0.58
Specific surface area(m2/g) 20 10 11 14 14 9
Average particle size*1(μm) 0.4 0.18 0.18 0.09 0.2 0.08
Viscosity(20rpm)*2(mPa・s) 71,000 58,000 37,000 71,000
TI value*2(-) 6.5 7.4 7.5 6.1
Coating agent Fatty acids Fatty acids Fatty acids Fatty acids Fatty acids

*1 Measured with electron microscope   *2 DOP100g/CaCO3 70g

Applications

  • PVC sol
  • Acrylic sol
  • Adhesives
  • Rubber
  • Paints
  • Plastics
  • Sealants
  • Inks
  • Paper
  • Ceramics
  • Abrasive
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