Photoinitiators
Photoinitiator is a chemical compound that breaks down into free radicals when exposed to light. In industries, photoinitiators are widely used to promote polymerization. In addition to the special formulation of photoinitiator and the adsorption of UV from high-intensity UV light curing equipment, the resin will produce free radicals or ions, which will lead to polymerization, crosslinking and grafting reactions. Resins (UV coatings, inks, adhesives, etc.) can be transferred from liquid to solids in seconds.
| Product | Formula | Appearance | Purity (%) | M.P. (℃) | Volatile (%) | Max.abs. band (nm) |
|---|---|---|---|---|---|---|
| SB-PI 701 (EAB) | C21H28N2O | Light yellow to light green yellow solid powder | ≧99% | 92-98°C | ≦0.5% | 248nm 376nm |
| SB-PI 702 (BCIM) | C42H28Cl2O4 | Yellow crystalline solid | ≧99% | 195-205°C | ≦0.5% | 263nm |
| SB-PI 703 (1173) | C10H12O2 | Colorless to light yellow liquid | ≧97% | - | - | 260nm 360nm |
| SB-PI 704 (EDB) | C11H15NO2 | White to light yellow/white solid powder | ≧99% | 62-65°C | ≦0.5% | 310nm |
| SB-PI 712 (MBP) | C14H12O | White powder crystal | ≧99% | 55-57°C | ≦0.2% | |
| SB-PI 714 (184) | C13H16O2 | White solid powder | ≧98% | 46-49°C | ≦0.5% | 244nm 330nm |
| SB-PI 718 (TPO) | C22H21PO2 | Yellow solid powder | ≧97% | 87-93°C | ≦0.5% | 260nm 360nm |
| SB-PI 719 (819) | C26H27O3P | Yellow solid powder | ≧99% | 131-135°C | ≦0.5% | 295nm 370nm |
| SB-PI 751 (BDK) | C16H16O3 | White crystalline solid | ≧99% | 63-67°C | ≦0.2% | 250nm 340nm |
| SB-PI 769 (369) | C23H30N2O2 | Light yellow solid powder | ≧98% | 110-114°C | ≦0.5% | 320nm |
| SB-PI 777 (I-907) | C15H21O2NS | White to beige solid powder | ≧99% | 72-75°C | ≦0.25% | 305nm |
| SB-PI 788 (ITX) | C16H14OS | Light yellow solid powder | >98% | 74-76°C | ≦0.5% | 260nm 380nm |
| SB-PI 794 (784) | C30H22F4N2Ti | Yellow to orange powder | ≧99% | 165-170°C | ≦0.5% | 488nm 532nm |
| SB-PI 799 (DETX) | C17H16OS | Light yellow solid powder | ≧98% | 66-70°C | ≦0.5% | 257mm 382mm |
| Product | General Properties | Application |
|---|---|---|
| SB-PI 701 (EAB) | Good photoinitiator | UV curing system |
| SB-PI 702 (BCIM) | Good photoinitiator | UV curing system |
| SB-PI 703 (1173) | Liquid type photoinitiator. Solvent-like. Able to reduce the viscosity of formula. | Wood paint，clear finishing varnish，clear varnish，paper varnish，UV curable adhesive |
| SB-PI 704 (EDB) | Good photoinitiator | Printing ink，wood，paper，and metal varnish |
| SB-PI 712 (MBP) | ||
| SB-PI 714 (184) | Non-yellowing photoinitiator | Wood paint，clear finishing varnish，clear varnish，paper varnish，UV curable adhesive |
| SB-PI 718 (TPO) | Photoinitiator with longer adsorption wavelength | Mostly applied to white system |
| SB-PI 719 (819) | Photoinitiator with longer adsorption wavelength | Mostly applied to white system. Printing ink，wood，paper and metal varnish |
| SB-PI 751 (BDK) | High efficiency photoinitiator | UV curing system |
| SB-PI 769 (369) | High efficiency photoinitiator | Applied to colorful UV curing system |
| SB-PI 777 (I-907) | High efficiency photoinitiator | Mostly applied to GBK ink system. Usually applied as photoinsist or solder mask of electronics industry |
| SB-PI 788 (ITX) | High efficiency photo sensitizer，especially for color system | Used to enhance photo sensitivity with SB-PI 777 |
| SB-PI 794 (784) | High efficiency photoinitiator | used as a UV-absorbent，pharmaceutical intermediates or used in UV-curing paints and inks |
| SB-PI 799 (DETX) | High efficiency photo sensitizer，especially for color system | Used to enhance photo sensitivity with SB-PI 777 |
