中固化学®2959 is a high-efficiency non-yellowing UV photoinitiator, used to initiate UV polymerization of unsaturated prepolymerization systems, especially suitable for low odor, low volatility, low yellowing, water-based acrylate and unsaturated polyester resins.
中固化学® 2959
Chemial Name: 2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone
Synonym: DAROCUR 2959; IRGACURE 2959;Speedcure 2959;Omnirad 659
Molecular Formula: C12H16O4
Molecular Structure:

中固化学® 2959 is a high-efficiency non-yellowing UV photoinitiator, used to initiate UV polymerization of unsaturated prepolymerization systems, especially suitable for low odor, low volatility, low yellowing, water-based acrylate and unsaturated polyester resins.
| Appearance | White crystalline powder |
| Assay (GC) | ≥99% |
| Melting Point | 82-84℃ |
| Loss On Drying | ≤ 0.5% |
中固化学® 2959 has been tested for use in UV-curable formulations for wood, metal, plastic and paper surfaces. The hydroxyl functional group in the molecule increases the solubility of 中固化学® 2959 in waterborne coating formulations.
中固化学®2959 has lower volatility and odor compared to 中固化学® 1173. Importantly, the active hydroxyl groups of 中固化学® 2959 can be easily grafted onto polymer molecules, making its processing more convenient. Due to its unique properties,中固化学® 2959 is especially recommended for UV formulations that require high temperature and air flow to evaporate moisture before curing.
Recommended dosage: 2–5%
20kg/carton
Being kept in dry, clean warehouse with well ventilation.
Avoid exposing to light and heating.
运输过程中防止泄漏、雨淋和曝晒。