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VC-1FG

i-line Highly sensitive sulfonium salt type photoacid generator. Although it is a non-Sb type because it uses borate anion, it has the same acid strength as the SbF6 anion product and exhibits high cationically polymerizable properties. In addition, the cured product is excellent in low metal corrosiveness.

CAS RN® Non-disclosure
M.W. Approx. 1400

Physical characteristics / Packing / Development stage

Appearance White ~ yellow powder
Packing 0.5kgBottle
Stage Labo
Sample Free:10g


Q&A

What is the absorption wavelength?
The i-line (365 nm) has a large absorption with a molar extinction coefficient of about 12,000 [M-1 cm-1], while the h-line (405 nm) and g-line (436 nm) have no absorption.
It is suitable for materials that require high transparency in the visible light range while increasing the photosensitivity to i-line.
What are the characteristics of FG (special anion)?
It has high acid strength and reactivity equivalent to HSbF6. In addition, corrosion of peripheral members and coloring during heat curing can be suppressed.
Are there types with different generated acids?
We have various development results. If you have an anion that you are interested in, please feel free to contact us.
How much should I add?
Add about 0.5 to 2 wt% to the resin, depending on the application and film thickness.
What film thickness is suitable?
 Although it depends on the application and the amount of addition, a thin film of 10 μm or less, which is less affected by the transmittance, is suitable.
In the case of a thick film of 100 μm or more, the type with a small molar extinction coefficient (CPI-100, 200 series, etc.) has high light transmittance in the depth direction and can generate acid to the deep part. The CPI-300 series is suitable for medium film thicknesses of about 50 μm.