Kowa American Corporation

Viscopearl D-3, D-5, D-10

Cellulose beads made from wood-derived pulp

Viscopearl is sphere shape cellulose made from wood-delivered pulp. The particle size is widely form 3 micro meter to 4 mm. It has great degradability in soil and ocean. 4mm type Viscopearl will be depredated completely after 96 days in soil.

In addition to such property, it has heat & chemical resistance, great hydrophilicity and Anti statistic property.



  •  Viscopearl can be used as a carrier for aromatic agents or functional chemicals, raw material for cosmetics, or abrasive. It can also be used as an additive for resin and rubber by using features of cellulose such as water absorbency. In addition, the small particle size products (D-10, D-5, and D-3) have a light diffusion effect, enabling them to be used as ink matting agents and light diffusing agents.

Embedding technology(Example of Applications)

  • Viscopearl particle sizes of 2mm and 4mm have a porous structure and the pores can carry functional chemicals such as aromatic agents and antibacterial agents. These Chemical agents can be stabilized in the pores and their release rate can be controlled by an embedding processing that mixes these chemicals with a specialized resin that is then embedded and absorbed into the Viscopearl for controlled release of the chemical agents.


Grade Particle Size Structure Specific Grvity
D-10 10-13μm Non-porous 0.7g/㎠
D-5 7-10μm Non-porous 0.6g/㎠
D-3 <6.5μm Non-porous 0.5g/㎠


CAS#: 9004-34-6


  • Antistatic
  • Biodegradability
  • Heat Resistance
  • Chemical Resistance
  • Hydrophilicity
  • Matting


  • Pore forming agent
  • Rubber
  • Paint & Coatings-Waterborne