B. Modified PVB resin
| Grade |
Butyral
wt% |
Hydroxyl
wt% |
Acetyl
wt% |
Viscosity
cps |
Free Acid
wt% |
Volatile
wt% |
| B75TX |
----- |
13~17 |
<2 |
210~270 3 |
<0.05 |
<3 |
| B79TX |
----- |
13~17 |
<2 |
120~180 3 |
<0.05 |
<3 |
| B82TX |
----- |
13~17 |
<2 |
70~110 3 |
<0.05 |
<3 |
| B87TX |
----- |
14~18 |
<2 |
150~220 |
<0.05 |
<3 |
| B88TX |
----- |
14~18 |
<2 |
100~150 3 |
<0.05 |
<3 |
| B89TX |
----- |
14~18 |
<2 |
60~100 3 |
<0.05 |
<3 |
| Remark: Measurement of Viscosity |
1 Solution Viscosity was determined in 5% by weight in 95% ethanol, at 20℃, using Brookfield viscometer.
2 Solution Viscosity was determined in 10% by weight in at 20℃, toluene/ethanol 1/1, using Brookfield viscometer.
3 Solution Viscosity was determined in 5% by weight in toluene/ethanol 1/1, at 20℃, using Brookfield viscometer.
Major applications: - Copper foil laminates: Binder for copper foil and Epoxy laminates
- Printed circuit board bonding adhesives
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