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CPI-410S

i-line / h-line Highly sensitive sulfonium salt type photoacid generator. Since it uses a special phosphorus anion, it has the same acid strength as the SbF6 anion product even though it is non-Sb, and exhibits high cationic polymerizable properties. In addition, it has excellent solubility in various solvents and monomers including non-polar organic solvents.

CAS RN® Non-disclosure
M.W. Approx. 1100

Physical characteristics / Packing / Development stage

AppearanceYellow powder
Packing 0.5kgBottle
Stage Mass
Sample Free:10g


Q&A

What is the absorption wavelength?
The i-line (365 nm) absorbs about 9600 [M-1 cm-1] in molar extinction coefficient, and the h-line (405 nm) absorbs about 1380 [M-1 cm-1].
There is almost no absorption in the g-line (436 nm).
What are the characteristics of the (Rf) nPF6-n anion?
Although it is a non-Sb type, it has an acid strength equivalent to that of HSbF6 and exhibits high cationically polymerizable properties. In addition, the acid generator with this anion has excellent solubility in various solvents and monomers including non-polar organic solvents.
Are there types with different generated acids?
There is CPI-410B, which is a B (C6F5) 4 anion.
We have a track record of developing other anions, so if you have any anions 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.