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Photoacid generator - List of Manufacturers, Suppliers, Companies and Products

Photoacid generator Product List

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Light acid generator "CPI-100P/CPI-101A" *PFAS-free

A light cationic polymerization initiator with excellent storage stability for various compositions!

"CPI-100P/CPI-101A" is a light acid generator (photo cationic polymerization initiator) of the triaril sulfonium salt type with low impurities. The main component is a monosulfonium salt, which offers superior solubility in organic compounds and storage stability of various compositions compared to conventional products that contain a large amount of bis-sulfonium salts. 【Features】 ■ Low impurities ■ Excellent solubility in organic compounds ■ Excellent storage stability of various compositions ■ PFAS-free *For more details, please contact us.

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Photoacid generator "ES-1B" *PFAS-free

A developed product that combines sensitivity, acidity strength, and solubility.

i-line and h-line high-sensitivity sulfonium salt type photoinitiator. Typically, increasing sensitivity to light tends to decrease solubility, but ES-1B is a recommended development product that balances both sensitivity and solubility. Additionally, because it uses borate anions, it has an acid strength equivalent to that of antimony anions and demonstrates high cationic polymerization capability. *PFAS-free

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Photoacid generator [a special chemical that reacts to ultraviolet light]

A light acid generator that easily and safely produces acid through ultraviolet irradiation. It achieves efficiency in time and energy. PFAS-free products are also available.

Our company handles a substance known as "photoacid generator," which has the function of generating acid when exposed to light. Traditionally, the generation of acid has been achieved by adding acid or heating, but our product is characterized by its simplicity and energy efficiency, as it only requires ultraviolet light exposure. It is expected to be utilized in analytical instruments related to pharmaceuticals, medical applications, and biotechnology. The generated acid can be used for various applications and catalytic reactions, capable of producing everything from weak acids to original superacids. We offer a lineup of products compatible with various light sources, including long-wavelength LEDs. Additionally, we also handle products that do not contain PFAS, which has become a concern in recent years. [Examples of Applications] - 3D Printers - Photoresists - Polarizer Adhesives - OLED Encapsulants *For more details, please download the PDF or feel free to contact us.

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Photoacid generator "CPI-210S"

Excellent storage stability during cationic polymerization resin mixing! Equivalent acid strength to SbF6 anion products.

The "CPI-210S" is a sulfonium salt type photoinitiator with high purity, produced using our unique manufacturing method. It exhibits good storage stability when mixed with cationic polymerizable resins. By using a special phosphorous-based anion, it has an acid strength equivalent to that of SbF6 anion products, despite being non-Sb based, and demonstrates high cationic polymerization capability. Additionally, it has excellent solubility in various solvents and monomers, including non-polar organic solvents. There is also a "CPI-200K" available in a 50% propylene carbonate solution. 【Features】 ■ High purity sulfonium salt type ■ Excellent storage stability when mixed with cationic polymerizable resins ■ Uses a special phosphorous-based anion ■ Has an acid strength equivalent to SbF6 anion products while being non-Sb based, showing high cationic polymerization capability ■ Excellent solubility in various solvents and monomers, including non-polar organic solvents *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "CPI-100B(40)" *PFAS-free

Shows high cationic polymerization! Good storage stability when blended with cationic polymerization resins.

"CPI-100B(40)" is a general-purpose photoacid generator of sulfonium salt type with high purity, produced using our unique manufacturing method. It exhibits good storage stability when blended with cationic polymerizable resins and has excellent low metal corrosion properties in the cured material. Since it uses borate anions, it is non-Sb-based while having acid strength equivalent to that of SbF6 anion products, demonstrating high cationic polymerization capability. Additionally, there is a solvent-free type "CPI-110B" available. 【Features】 ■ High-purity sulfonium salt type ■ Excellent storage stability when blended with cationic polymerizable resins ■ Uses borate anions ■ Non-Sb-based while having acid strength equivalent to that of SbF6 anion products, demonstrating high cationic polymerization capability ■ Excellent low metal corrosion properties in the cured material ■ PFAS-free *For more details, please refer to the related links or feel free to contact us.

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Photoacid generator "CPI-310B" *PFAS-free

Excellent low metal corrosion resistance of the hardening agent! Despite being non-Sb based, it has an acid strength comparable to SbF6 anion products.

The "CPI-310B" is a high-sensitivity i-line sulfonium salt type photoinitiator. By using borate anions, it is non-Sb-based while having an acid strength equivalent to that of SbF6 anion products and demonstrates high cationic polymerizability. Additionally, it exhibits excellent low metal corrosion properties in the cured material. 【Features】 ■ High-sensitivity i-line sulfonium salt type ■ Uses borate anions ■ Non-Sb-based while having acid strength equivalent to that of SbF6 anion products and demonstrating high cationic polymerizability ■ Excellent low metal corrosion properties in the cured material ■ PFAS-free *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "CPI-410S"

Excellent solubility in various solvents and monomers, including non-polar organic solvents! Sulfonium salt type.

The "CPI-410S" is a sulfonium salt type photoacid generator with high sensitivity to i-line and h-line wavelengths. It uses a special phosphorus-based anion, providing acid strength equivalent to that of SbF6 anion products, despite being non-Sb based. It demonstrates high cationic polymerizability. Additionally, it exhibits excellent solubility in various solvents and monomers, including non-polar organic solvents. 【Features】 ■ Sulfonium salt type with high sensitivity to i-line and h-line wavelengths ■ Utilizes a special phosphorus-based anion ■ Has acid strength equivalent to that of SbF6 anion products while being non-Sb based ■ Shows high cationic polymerizability ■ Excellent solubility in various solvents and monomers, including non-polar organic solvents *For more details, please refer to the related links or feel free to contact us.

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Photoacid generator "VC-1S"

Suppresses the absorption of visible light (G line, H line) and has a significant absorption only at the I line! Grade for transparent applications.

The "VC-1S" is a sulfonium salt type photoinitiator with high sensitivity to i-line. It suppresses the absorption of visible light (g-line, h-line) and has significant absorption only at i-line, making it suitable for transparent applications. Due to the use of a special anion, it has an acid strength equivalent to that of HSbF6 anion products, despite being non-Sb based, and demonstrates high cationic polymerization capability. Additionally, it excels in solubility in various solvents and monomers, including non-polar organic solvents. 【Features】 ■ Sulfonium salt type with high sensitivity to i-line ■ Suppresses absorption of visible light (g-line, h-line) and has significant absorption only at i-line ■ Grade suitable for transparent applications ■ Uses a special anion ■ Has acid strength equivalent to HSbF6 anion products while being non-Sb based ■ Demonstrates high cationic polymerization capability *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "VC-1FG" *PFAS-free

Excellent low corrosion resistance of hardened materials and low discoloration during high-temperature heating! I-line high-sensitivity sulfonium salt type.

"VC-1FG" is a sulfonium salt type photoacid generator with high sensitivity to i-line. It is a grade designed for transparent applications, suppressing the absorption of visible light (g-line, h-line) and exhibiting significant absorption only at the i-line. By using a special anion, it has an acid strength equivalent to that of HSbF6 anion products, despite being non-Sb based, and demonstrates high cationic polymerizability. Additionally, it exhibits low corrosiveness of the cured product and excellent low coloration during high-temperature heating. 【Features】 ■ Sulfonium salt type with high sensitivity to i-line ■ Suppresses absorption of visible light (g-line, h-line) and has significant absorption only at i-line ■ Grade for transparent applications ■ Uses a special anion ■ Has acid strength equivalent to HSbF6 anion products while being non-Sb based ■ Demonstrates high cationic polymerizability ■ PFAS-free *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "NA-CS1" *PFAS-free

Excellent resistance to strong amines and thermal stability! It is possible to suppress the diffusivity of acids.

"NA-CS1" is a non-ionic photoinitiator compatible with i-line. It generates bulky camphor sulfonic acid, which allows for the suppression of acid diffusion. It exhibits excellent resistance to strong amines such as triethylamine and has high thermal stability. With a low molar absorptivity at 365 nm and high transparency, it is suitable for use in thick films (over 50 μm). Of course, it can also be used in thin films. 【Features】 ■ Non-ionic and compatible with i-line ■ Generates bulky camphor sulfonic acid, allowing for the suppression of acid diffusion ■ Excellent resistance to strong amines such as triethylamine and high thermal stability ■ Free of PFAS *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "VC-1 series"

Various combinations with different anions are possible! It has excellent transparency due to its low absorption in the visible light range.

The "VC-1 series" is a light acid generator that achieves both high photodecomposition rates and transparency in the visible light range by introducing a photosensitive area optimized for the cationic component. It has a significant absorption for the i-line (wavelength 365nm), which is the main emission line of high-pressure mercury lamps, while exhibiting low absorption in the visible light range (above 380nm), resulting in excellent transparency. In evaluations of light-curable properties using epoxy resin, it shows curing performance equivalent to the CPI-400 series, indicating a high acid generation rate. Additionally, we offer the "ES-1 series," which demonstrates a higher photodecomposition rate while maintaining similar light absorption characteristics, thanks to further structural optimization of the CPI-400 series. 【Features】 ■ Achieves both high photodecomposition rates and transparency in the visible light range ■ Excellent transparency ■ High acid generation rate ■ Compatible with various anions *For more details, please refer to the PDF document or feel free to contact us.

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[Technical Information] Photoacid Generator

The generated acid is used in various catalytic reactions! An explanation of the reaction mechanisms and selection criteria.

A "Photo Acid Generator (PAG)" is a substance that generates acid when exposed to light. Structurally, it can be classified into two groups: ionic photo acid generators of the onium salt type and non-ionic photo acid generators. When light is irradiated on sulfonium salt type photo acid generators, the cationic site absorbs light energy, causing the C-S+ bond to cleave and generating radical species. In the case of imidosulfonate type photo acid generators, the structure on the imido side serves as the light absorption site. 【Characteristics of Ionic Photo Acid Generators】 - The generated acid can be selected from weak to strong acids (the generated acid is determined by the counter anion). - High thermal stability. - Tends to have low solvent solubility. *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "CPI-310FG" *PFAS-free

It has high heat resistance and transparency, is non-Sb-based, yet possesses acid strength equivalent to HSbF6 anion products, and demonstrates high cation polymerizability!

The "CPI-310FG" is a high-sensitivity sulfonium salt type photoinitiator for i-line. By using a special anion, it has an acid strength equivalent to that of HSbF6 anion products, even though it is non-Sb based, and demonstrates high cationic polymerizability. Additionally, it exhibits low corrosiveness of the cured product and low discoloration during high-temperature heating. 【Features】 ■ High-sensitivity sulfonium salt type for i-line ■ Uses a special anion ■ Has acid strength equivalent to HSbF6 anion products while being non-Sb based ■ Demonstrates high cationic polymerizability ■ Excellent low corrosiveness of the cured product and low discoloration during high-temperature heating ■ PFAS-free *For more details, please refer to the related links or feel free to contact us.

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Light acid generator "IK-1"

Excellent solubility in various solvents and monomers, including non-polar organic solvents! Iodinium salt type.

"IK-1" is a photoacid generator of the iodinium salt type. By using a sensitizer, it can respond to long wavelengths. It employs a special phosphonium anion, which allows it to have an acid strength equivalent to that of SbF6 anion products, despite being non-Sb based, and demonstrates high cationic polymerization capability. It can also be used as a high-temperature type thermal acid generator. Additionally, there is "IK-1PC(80)", an 80% PC solution. 【Features】 ■ Capable of responding to long wavelengths by using a sensitizer ■ Utilizes a special phosphonium anion ■ Has acid strength equivalent to that of SbF6 anion products despite being non-Sb based ■ Demonstrates high cationic polymerization capability ■ Can also be used as a high-temperature type thermal acid generator *For more details, please refer to the related links or feel free to contact us.

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Photoacid generator "IK-1FG" *PFAS-free

By using a sensitizer, it is possible to respond to long wavelengths! Iodinium salt type.

"IK-1FG" is a light acid generator of the iodinium salt type. By using a sensitizer, it can respond to long wavelengths. Because it uses a special anion, it has an acid strength equivalent to HSbF6 anion products despite being non-Sb based, and it demonstrates high cationic polymerizability. Additionally, it exhibits low corrosiveness of the cured product and low discoloration during high-temperature heating, making it suitable for use as a high-temperature thermal acid generator. 【Features】 ■ Iodinium salt type ■ Capable of responding to long wavelengths by using a sensitizer ■ Uses a special anion ■ Has acid strength equivalent to HSbF6 anion products despite being non-Sb based ■ Demonstrates high cationic polymerizability ■ Excellent low corrosiveness of the cured product and low discoloration during high-temperature heating ■ PFAS-free *For more details, please refer to the related links or feel free to contact us.

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