Photoinitiator Tpo Replacement CAS No 75980-60-8 2,4,6-Trimethylbenzoyl-Diphenylphosphine Oxide
Photoinitiator TPO CAS No 75980-60-8 2,4,6-Trimethylbenzoyl-diphenylphosphine oxide
Description
TPO is a highly efficient free radical type I photoinitiator that absorbs in the long wavelength range. Due to its wide absorption range, its absorption peak is 350~400nm, and it absorbs to about 420nm. Its absorption peak is longer than that of conventional initiators, and its photocuring speed is fast. TPO also has the effect of photobleaching, and is suitable for thick film deep curing and coating non-yellowing system. It is mostly used in white systems, mainly used in silk screen inks, lithographic inks, flexographic inks, and wood coatings.
Physical Data
| Appearance | Yellow crystals |
| Purity, % | ≥99 |
| Melting point, °C | 91-95 |
| Volatile matter | ≤0.1% |
| Ash | ≤0.1% |
| Acid value, mg KOH /g | ≤0.5 |
Transmittance (10 g/100 ml toluene):
| 425nm | ≥95% |
| 425nm | ≥96% |
| 500nm | 0.98% |
Product Catalog
| Product Name | CAS NO | Application characteristics |
| Photoinitiator 1173 | 7473-98-5 | Low odor, non-yellowing, good color stability |
| Photoinitiator 1190 | 68156-13-8 &.74227-35-3 | / |
| Photoinitiator 919 | / | Suitable for application in black/dark UV oil |
| Photoinitiator 262 | 100011-37-8 | |
| Photoinitiator 1176 | 71449-78-0 / 89452-37-9 | Cationic curing, varnish, 3D printing |
| Photoinitiator 907 | 71868-10-5 |
Suitable for colored UV curing system |
| Photoinitiator 184 | 947-19-3 | Used for UV polymerization of monofunctional or multifunctional polymerized acrylate monomers and oligomers. |
| Photoinitiator ITX | 5495-84-1 | Used in ultraviolet (UV) curing inks, adhesives, coatings and photoresists |
| Photoinitiator BDK | 24650-42-8 | Used in various UV curing systems |
| Photoinitiator TPO | 75980-60-8 | Suitable for addition to ultra-thick coatings and white coatings |
| Photoinitiator 150 | 163702-01-0 | Varnish, odorless, non-migrating, thin coating |
| Photoinitiator 300 | 163702-01-0 | Varnish, odorless, non-migrating, thin coating |
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