This website uses cookies. Using this site will signify that you agree with all terms of our Privacy Policy.close

Neopulim™(Transparent polyimide varnish)

Neopulim™ is a solvent-soluble transparent polyimide varnish.
Because imidization is already completed, only solvent volatilization is required.
S100 and S200 are our standard grade featuring excellent transparency and high heat-resistance. By taking advantage of these features, Neopulim™ can be used for displays and various other optical applications.

Neopulim™

Advantages

  • High Heat-Resistance
  • High Transparency
  • Low Temperature Dry

Applications

  • For display materials
  • For optical materials
  • For insulating materials
  • For protecting materials in manufacturing process(as film)
  •  etc.

Properties

<Varnish Properties>

Item unit S100 S200 Measurement method
Viscosity Pa・s 35 55 25℃
Non volatile content wt% 20.0 20.5 Weight loss on heating at 320℃
Solvent DMAc/GBL GBL

<Film Properties>

Item unit S100 S200 Measurement method
Thickness μm 50 50
Total light transmittance % 89.9 90.4 JIS K 7136
YI 1.5 1.3 JIS K 7136
L 95.1 95.2 JIS K 7136
a* / b* 0.0 / 1.1 0.0 / 0.5 JIS K 7136
HAZE 0.1 0.1 JIS K 7136
Glass-transition temp.
(Tg)
308 327 TMA
1% weight reduction temp.
(Td 1%)
473 483 TGA
Thermal linear expansion coefficient
(100-200℃)
ppm/K 58 59 TMA
Tensile modulus GPa 2.3 ± 0.0 2.4 ± 0.1 JIS K 7127
Tensile strength MPa 96 ± 2 99 ± 1 JIS K 7127
Elongation % 8 ± 1 7 ± 1 JIS K 7127
Dielectric constant
(1MHz)
3.72 3.44 Electrostatic capacitance
Dissipation factor
(1MHz)
0.019 0.014 Electrostatic capacitance

Transmittance

Transmittance

Inquiries Concerning Products

Basic Chemicals Business Sector
High-performance Products Division
Polymer Materials Department
TEL:+81-3-3283-4754 / FAX:+81-3-3214-0938