CPI-310FG Ionic Photoacid Generator, Photo-Cationic Polymerization Initiator (Sulfonium)

Sulfonium Series

CPI®-100 / 200series UV
UV light / i-line

CPI-100P(liquid)
CPI-110P(powder)
CPI-100B(40)(liquid)
CPI-110B(powder)
CPI-101A(liquid)
CPI-200K(liquid)
CPI-210S(powder)
cation
(light-absorbing site)

CPI®-300series
i-line

CPI-310FG(powder)
CPI-310B(powder)
cation
(light-absorbing site)

VC-1 VC-2 Series (development product)
i-line

VC-1FG(powder)
cation
(light-absorbing site)

CPI®-400series
g-line / h-line/ i-line

CPI-410S(powder)
CPI-410B(powder)
cation
(light-absorbing site)

ES-1 (development product)
ES-2 (development product)
g-line / h-line/ i-line

ES-1B(powder)
ES-2B(powder)
cation
(light-absorbing site)

Photoacid Generator(Iodonium)
IK Series

IK-1(powder)
IK-1FG(powder)
cation
(light-absorbing site)

IK-20B(powder)
cation
(light-absorbing site)

Nonionic Photoacid Generator

NAseries
(development product)
i-line compatible

NA-CS1(powder)
Aryl amide skeleton with
a light-absorbing moiety

Thermal acid generator

Thermal acid generator(Overview and Function Map)

TA Series(Sulfonium Salt Type)

TA-100(powder)
TA-100FG(powder)
cation

IKseries(Iodonium Salt Type)

IK-1(powder)
IK-1FG(powder)
cation

AAseries(Ammonium Salt-Type)

AA-01(powder)
cation

IK-20B(powder)
cation

Thermal Base Generators

DBU Salt Thermal Base Generators

DBU Salt

U-CAT SA 1(liquid)
U-CAT SA 102(liquid～solid)
U-CAT SA 603(solid)
U-CAT SA 810(solid)
U-CAT SA 506(liquid～solid)

Ammonium Salts

U-CAT 18X(liquid～solid)

CPI-310FGIonic Photoacid Generator, Photo-Cationic Polymerization Initiator (Sulfonium)

Characteristics and Applications

CPI-310FG is a sulfonium salt type photoacid generator with high sensitivity to i-line, a special grade unique to our company. The anion structure is a special anion (FG) of our proprietary design, which exhibits high cationic polymerization. It also has excellent low metal corrosion of cured materials and low coloration when heated at high temperatures. CPI-310FG is a non-solvent type powder product.

Regarding absorbed wavelengths

The i-line (365 nm) absorbs about 600 [M-1 cm-1] in terms of molar extinction coefficient.
There is no absorption in the h-line (405 nm) and g-line (436 nm).
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.
Regarding different types of acids generated

There is CPI-310B, which is a B(C6F5)4 anion.
We have a track record of developing other anions such as sulfonates, so if you have any anions that you are interested in, please feel free to contact us.
Recommended amount of additive

Add about 0.5 to 2 wt% to the resin, depending on the application and film thickness.
Recommended film thickness

A medium film thickness of about 50 μm is suitable, although it depends on the application and the amount of addition.
For thin films of 10 μm or less, the type with a large molar extinction coefficient (CPI-400 series, etc.) is suitable because the effect of transmittance is small. 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.

Product

Anion	CAS RN®	M.W.	Appearance	color	High sensivity for i-line	Low coloration	gh ray high sensitivity	High solubility	High Activity（Strong acid）	Solution product	non-PFAS	Low corrosiveness	Packing	Stage
Ga(C₆F₅)₄	2135690-65-0	1262	Powder	White ～ Light yellow	✔	✔			✔		✔	✔	0.5kgBottle, 5kgCAN	Mass

We also offer technical advice

Thank you for considering our products.
We provide support for product development by offering product characteristics, data and technical information to solve the challenges faced by product developers and researchers.

Product Inquiry Technical Consultation Other Consultation/Inquiries

In recent years, there has been a worldwide tightening of regulations on per- and polyfluoroalkyl substances (PFAS), and we are focusing on the development of PFAS-free products to ensure that our customers can use them with peace of mind. Please also make use of our existing lineup of PFAS-free products.

*PFAS: OECD definition published in2021