TOKYO OHKA KOGYO CO., LTD. (TOK) provides chemical products, such as photoresist, and equipment for semiconductors and liquid crystal displays.

HOME Products New Business Field Materials Hydrophilic Coating Materials (Chemical Bonding Type)

New Business Field

Products

Under the “Challenge for the Future!” slogan, TOK has set up the New Business Development Dept. combined sales and technical division.
TOK offers unique and high value-added materials ,using our functional polymer design/manufacturing technologies cultivated in photolithography field, through open innovation with our customers and third parties.

Hydrophilic Coating Materials (Chemical Bonding Type)

The material can be formed a hydrophilic nano level thin film only by coating on glass or oxide film.

Substates

Glass, Plastics(PDMS, PC, PET, PP, COP)etc,.

Features

  • No drying process is required
  • Ultra-thin film (< 2nm) with conformal coating
  • Excellent rubbing resistance
  • Excellent light resistance and chemical resistance
  • Excellent optical property
  • Excellent resistance to pollutants from the environment

How to use

  • For glass and oxide film substrates: Hydrophilic surface can be formed by only coating
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  • For plastics substrates:Pretreatment(Plasma, VUV, Corna etc) is required
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Applications

Eyeglass lenses, Goggles, Indoor, Outdoor, and more

References

  • Anti Fogging Test

Substrate: Glass
Condition: Observe the degree of haze in a steam at 80 ℃
Result: No fogging more than 1 minute

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  • Hydrophilic surface can be maintained on PDMS for long period

Substrate: PDMS(Polydimethylsiloxane)
Conditions: Plasma→Coating→Dry→Rinse

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