Introduction to Developed Products

Ionic liquid (AMINOION®)
Development of AMINOION®, a proprietary design that leverages our technology and know-how.

Our strength is that it can produce and handle a variety of products such as surfactants, glycol ethers and amines. By capitalizing on this strength as far as possible, we have developed AMINOION®, halogen-free ionic liquid that is a proprietary design that applies our production technology.
AMINOION® can be used as an anti-static agent, anti-fogging agent, ultra-hydrophilizing agent, wetting agent or stain-proofing agent. Moreover, we also aim to develop new applications such as surfactants for emulsion polymerization.
As we have many types of AMINOION®, please feel free to contact us for more information.

What is ionic liquid?

Ionic liquid is a “salt” that is liquid at room temperature. A salt that is composed of ions has been thought to be solid at room temperature due to its high melting point like sodium chloride. However, ionic liquid, which is liquid at room temperature due to its low melting point, is a unique substance with properties that have never been seen in other known liquids. In recent years, applied research on various applications of ionic liquid has been under way because of its properties and the high designability of structures formed of a combination of anions and cations.

Ion Fluid Regular salt

Product Name AMINOION®
General Name Ionic liquid
Contact Nippon Nyukazai Co., Ltd.
Planning & Development Dept., Research & Development HQ
Phone: +81-3-5651-5635
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1. Anti-fogging and anti-static agents


  • The addition of a small amount of these agents to various kinds of polymers provide anti-static properties.
  • As they do not excessively bleed out, they have superior water resistance (Table 1).
  • Good antistatic performance is obtained at low humidifies.
  • They can be used for such applications as paints, coating materials and films.

Water resistance evaluation (Table 1)


Polymer Acrylate Acrylic styrene Polyester
No. of times of cleaning 0 times 5 times 0 times 5 times 0 times 5 times
AMINOION® Type 1 109  109 109  109 109  109
Lauryltrimethylammonium chloride* 107 Over 108 Over 108 Over

*2% addition to polymer

  • Surface resistivity
    Mitsubishi Chemical Hiresta: URS probe
    Measurement at an applied voltage of 250V, 25℃ and 50%RH
  • Water resistance evaluation
    Scrubbing with a sponge dampened with neutral detergent and rinsing with water.
    After drying, surface resistivity is measured.

In addition to anti-static properties, we offer a lineup of various types of AMINOION® to address various applications.

  • AMINOION® with superior heat resistance which can be applied to polymer compounds.
  • AMINOION® with anti-fogging properties.

2. Ultra-hydrophilizing agents, wetting agents and stain-proofing agents


  • Ultra-hydrophilizing agents, wetting agents and stain-proofing agents that have reactive groups in their structures.
  • Ultra-hydrophilicity can be added by copolymerization with acrylic monomers and others (Table 2).
  • As such agent scan exhibit their effects even when only a small amount is used, the original properties of the polymers can be maintained.
  • They can be used for such applications as paints, coating materials and films.

Polymerization example (Table 2)

Polymerization method AMINOION®
Quantity to be added (solid content)
Surface resistivity(Ω/□) Contact angle (°)
Solution polymerization
Blank Over 70
2% 1×1011 3
5% 4×1010 4
UV polymerization
Blank Over 47
2% 8×1010 6
5% 7×1010 6
  • Surface resistivity: Mitsubishi Chemical Hiresta UP; URS probe, measurement at an applied voltage of 250V, 25℃ and 50RH%.
  • Contact angle: 30 seconds after waterdrop adhesion, 25℃

3. Surfactants for emulsion polymerization


  • Surfactants for emulsion polymerization that have reactive groups in their structures.
  • They have satisfactory water resistance as their reactive groups copolymerize.
  • They have superior freeze/thaw stability and adhesion. (Table 3)
  • Emulsion polymerization is possible by using only a small quantity compared with conventional surfactants.
  • Such surfactants are low foaming and high de-foaming.
  • There are types of surfactants that have the effect of providing ultra-hydrophilicity at the time of film formation.
  • They can be used for such applications as paints, coating materials, films, adhesives, waxes, etc.

Polymerization example (Table 3)

Monomer composition BA(39)/MMA(42)/St(16.5)/AA(2)/ Silane coupling agent(0.5)
Usage/monomer (%)
1.2 1.5 2.0
Polymerization stability (%/monomer) 0.05 0.04 0.06
Polymerization conversion rate (%) 99.6 99.5 99.9
DLS average particle diameter (nm) 136 135 127
Water resistance (ΔL value) *1 6.8 8.3 10.1
Freeze/thaw stability *2
Adhesion *3

Monomer concentration: 50.0% Polymerization initiator APS: 0.3%/monomer

  • *1 Emulsion is applied to a glass plate, dried at 110℃ for three minutes, left standing for 24 hours at room temperature, and then soaked in a 25℃ water tank for 100 hours.
    Dry film thickness: about 20μm, and L value measurement (color difference meter): Konica Minolta CM-5 spectrophotometer.
  • *2 The emulsion was frozen at 10℃ for 16 hours. After that, it was meltedat normal temperatures. This process was performed 5 times.
  • *3 Cross-cut test