ECRIOS™ (Development)

Colorless polyimide (poly (amic acid) ) varnish

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Usage detail

Colorless polyimide (poly (amic acid) ) varnish

Characteristic

  • Basic Information
  • Details of Characteristics
  • Details of Applications

Overview

Especial clear resin innovative original solution

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Characteristic of ECRIOS series
  • Excellent optical properties
  • Strong mechanical toughness
  • Excellent chemical-resistance
  • High dimensional stability
  • Halogen free
Grade
  • VICT-Bnp　Strong mechanical toughness, low retardation
  • VICT-C, Cz　High dimensional stability

We can supply poly(amic acid) varnish.

Details of properties

Characteristic of varnish
Grade Solvent*1 Solid content [wt%] E-type viscosity [mPa・ｓ@25℃]
VICT-Bnp NMP 10～15 5,000～50,000
VICT-C NMP/DMI 10～15 5,000～50,000
VICT-Cz NMP 10～15 5,000～50,000

※1NMP：N-methyl-2-pyrrolidone, DMI： 1,3-dimethyl-2-imidazolidinone

Heat resistance

High heat-resistance clear resin

Properties of the film obtained from ECRIOS™ varnishes
Grade
Film：20μmt		 Thermal properties Mechanical properties
TMA Tensile test Folding endurance
Tg
[℃]		 CTE*2
[10-6/K]		 TM
[GPa]		 EL
[%]		 MIT test *3 @4.9N
[times]
VICT-Bnp 265 42 2.8 18 >2 million
VICT-C 280 17 4.5 15 >0.1 million
VICT-Cz 315 ≦10 5.1 8 >1 million
Grade Optical properties
Reflective index Total light transmittance
(%)		 Lab color space b* Retardation
（Film 10μmt）
VICT-Bnp 1.64 90 0.7 50nm
VICT-C 1.67 88 2.1 1500nm
VICT-Cz 1.67 88 1.5 1600nm

※2100-200℃,

※3The MIT bending test was performed at a folding angle of 270˚, a curvature radius of 0.38 mm, and a load of 4.9 N.

Transmittance

High transmission from visible light to near-infrared range

Chemical-resistance

24hr immersion test at room temperature.
Film：20μmt
〇：No change in appearance

Grade Acetone NMP Acid aqueous solution*4 Alkali aqueous solution*5
VICT-Bnp ○ ○ ○ ○
VICT-C ○ ○ ○ ○
VICT-Cz ○ ○ ※ ※

※ To be measured

※4Acid (3.4% Oxalis acid)

※5Alkali (25% TMAH aq, 5% KOH aq)

Applications

Substrate for next-generation display
Transparent FCCL
  • Coating resin
  • Binders

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ICT Materials Business Division