TO:
Specification of SUNEVER 3140(0735) This document defines the polyamic acid SUNEVER 3140(0735)(SE-3140(0735)) product of NISSAN CHEMICAL INDUSTRIES,LTD.
1.Material
This material is a yellowish colored polyamic acid, 0.5μm filtered, is
uniform in quality.
2.Specification
2-2 Measurement
The following items are measured for each production lot.
2-2-1 Solid content
Weigh out around 1.0 gram of material on an aluminum tray which
is 35 mm in diameter and 18 mm in depth.
Dry the sample in a dry circulating oven for 2 hours at 200
±5 ℃ . Cool down the dried material in a desiccator.
Measure the weight of cooled material and calculate the
percentage of the weight vs. original weight.
2-2-2 Viscosity
Measure the viscosity for the 1 ml sample using EHD viscometer
made by TOKYO-KEIKI LTD.
rotor 1゜34′
rotating number 5 rpm
measuring temperature 25 ℃
2-2-3 Color Index
Put the material into a clean test tube and judge the
GARDNER NUMBER by comparing it with the standard.
2-2-4 Na content
Put the material on a Pt tray. After evaporating
the solvents, burn the material in muffle at 750℃.
Add the hydrochloric acid and the water, and measure
by atomic absorption method.
2-2-5 Water content
Karlu-Fischer’s methods.
2-2-6 Butyl cellosolve content
Add the chroloform to the material. Stir the mixture
and leave it for a time. Sample the top and analyze it
by using gas chromatograph.
3.Packaging and Labeling
A polyethylene bottle of which quality has been checked is
used as a container.
After checking the necessary properties, a label on which
following items are written is attached .
( 1.) Commercial Name and Grade Number
( 2.) Lot No.
( 3.) Net weight (kg or g)
( 4.) Production date
( 5.) Maker's name
These bottles are delivered to the warehouse in Japan
you designate packed together with dry ice in a carton box.
4. Analytical data
The following data are attached .
( 1. ) Trade name
( 2. ) Lot No
( 3. ) Net weight (kg )
( 4. ) Solid Content (%)
( 5. ) Viscosity (mPa?s(cP))
( 6. ) Color Index
( 7. ) Solvent contents(%)
( 8. ) Water content (ppm)
( 9. ) Na content (ppm)
( 10.) Maker's name
5. Others
5-1 Promptly after receiving the material, the buyer shall
check the quantity and the packing condition and shall
inform the manufacturer of the defects, if any.
5-2 Since the material is apt to decompose ,the buyer shall
keep it in a FREEZER(below -10 degree) immediately after
receiving it.
5-3 If the material is properly stored in a freezer, it can be
used for 8 months after manufacture.
However Nissan warrants products for 2 months from date of delivery
ex-factory Nissan provided they are transported in proper way
and stored at proper places
5-4 Color differences are inevitable among Lot# and time of manufacture.
6.Technical Information
*All information and data herein are based on test we believe to
be accurate, but accuracy or completeness thereof is not guaranteed. SE-3140 is an alignment coating specially designed for super twisted nematic (STN) type LCD. SE-3140 is a standard grade of Low Residual
DC type. It has a wide process margin of pretilt angle.
6-1 Film properties
6-2 Coating condition
6-2-1 Environmental humidity
40-60 R.H
6-2-2 Coating
For getting 60-80nm thick film after curing.
6-2-3 Standard curing condition
Pre-curing 5-10 min at 80 deg. C.
Curing 30-60 min around 180 – 250 deg. C.
6-3 Pretilt angle vs. Curing temperature.
[Curing Condition] 180deg.C/60min, 200deg.C/60min, 250deg.C/60min. [Rubbing Condition] Cloth :Rayon. Roll Speed:300rpm.
Stage Speed:20mm/sec. Pile contact length:0.5mm.
Roll diameter:120mm
[Liquid Crystal] ZLI-2293 (Merck Co.)
[Isotropic condition] 95deg.C/5min.
6-4 Pretilt angle vs. Rubbing Pressure
[Curing Condition] 250deg.C/60min.
[Rubbing Condition] Cloth :Rayon. Roll Speed:300rpm.
Stage Speed:20mm/sec.
Roll diameter:120mm
[Liquid Crystal] ZLI-2293 (Merck Co.)
[Isotropic condition] 95deg.C/5min
[Imidization]
Curing time:60min.
Method: FT-IR
Standard :We define 100% imidization as at curing 300deg.C
[Viscosity change on storage condition]
____________________________