サンアプロ List of Products and Services

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.

• Other polymer materials

We handle a substance known as "photoacid generator," which has the function of generating acid when exposed to light. The generated acid can be used for various applications and catalytic reactions, capable of producing everything from weak acids to original super acids. We offer a lineup of products compatible with various light sources, including long-wavelength LEDs. We have available the ionic photoacid generator "CPI-100 and 200 series," as well as the non-ionic photoacid generator "NA-CS1." Additionally, we also offer products that do not contain PFAS. 【Examples of Applications】 - Polarizer adhesives - Resins for photopolymerization - OLED encapsulants - Semiconductor resists *For more details, please download the PDF or feel free to contact us.

• Other polymer materials

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.

• Other polymer materials

We would like to introduce our "photoacid generator for organic synthesis applications." Compared to strong acids such as trifluoromethanesulfonic acid, our product does not release acid until exposed to light, making it safe to handle, while allowing for the localized generation of super strong acids that cannot stably exist in nature. Although acids are used in the synthesis of pharmaceuticals and pesticides, the inconvenience of handling strong acids makes our product suitable for addressing the challenges faced by the pharmaceutical and pesticide industries. 【Features】 ■ Compatible with various light sources and wavelengths, including mercury lamps and LEDs ■ Customizable acid generation (from weak acids to super strong acids) ■ High purity (over 98% purity) *For more details, please refer to the related links or feel free to contact us.

• Chemicals

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.

• others

Our company handles "thermal acid generators," which are mainly used in LED encapsulants and adhesives for pickup lenses. These products have the ability to generate acid upon heating, which facilitates cationic polymerization. We offer options such as "TA-100FG," which maintains high transparency and is non-colored even after high-temperature heating. 【Product Lineup】 ■TA-100 ■TA-100FG ■IK-1 ■IK-1FG *TA-100FG and IK-1FG are free of PFAS. *For more details, please download the PDF or feel free to contact us.

• Other polymer materials

The "NP Series" is a non-ionic photoacid generator that generates triflic acid (TfOH). We offer a lineup including "NP-TM2," which has high transmittance and can be applied to film thickness, and "NP-SE10," which corresponds to long wavelengths (g-line, h-line). [Features] ■ Triflic acid (TfOH) generating type ■ High thermal stability ■ High solvent solubility *For more details, please download the PDF or feel free to contact us.

• Other polymer materials

The FG anion produced by Sunapro's unique technology enables the achievement of both heat-resistant transparency and high solubility, which could not be accomplished with conventional light cationic polymerization initiators and thermal cationic polymerization initiators. Additionally, it is free of PFAS.

• Other polymer materials

"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.

• others

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

• Other polymer materials

"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.

• others

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.

• others

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.

• others

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.

• others

"CPI-410B" is a sulfonium salt type photoacid generator with high sensitivity for i-line and h-line. It uses borate anions, making it non-Sb based while having acid strength equivalent to SbF6 anion products. It demonstrates high cationic polymerizability. Additionally, it exhibits excellent low metal corrosion properties in the cured material. 【Features】 ■ Sulfonium salt type with high sensitivity for i-line and h-line ■ Uses borate anions ■ Non-Sb based while having acid strength equivalent to SbF6 anion products ■ Demonstrates 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.

• others

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.

• others

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.

• others

"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.

• others

"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.

• Chemicals

"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.

• others

"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.

• others

DBU and DBN are organic compounds that exhibit extremely strong basicity. They have excellent compatibility with various solvents and are useful as catalysts in many organic synthesis reactions. Compared to conventional tertiary amines or inorganic basic catalysts, they can improve reaction yields and selectivity under milder conditions. They are also used as catalysts in various polymerization or crosslinking reactions. A low metal grade of DBU, PURECAT (trademark pending), is also available in the lineup.

• Other polymer materials

The "U-CAT SA(R) series" is a thermobase generating agent that shows very high activity in curing reactions of epoxy resins and more. We offer a lineup including "U-CAT SA506/603," suitable for LED encapsulants, "U-CAT SA102/1," suitable for general applications, and "U-CAT SA831 to 851," suitable for IC encapsulants. 【Types】 ■DBU salt (liquid to solid type) ■DBU salt (powder type) *For more details, please download the PDF or feel free to contact us.

• Other polymer materials