Irgacure 784

Bis(.eta.5-2,4-cylcopentadien-1-yl)-bis(2,6-difluoro-3-(1H-pyrrol-1-yl)-phenyl) titanium 125051-32-3

Ciba Specialty Chemicals

光触发剂 Photoinitiator 丙烯酸/丙烯酸盐树脂 Acrylic/Acrylate Resins 油墨 >> 紫外 / 辐射-治疗 Inks >> UV / Radiation-curable 涂层 >> UV / 辐射线固化 Coatings >> UV / Radiation Curing INKS INKS IRGACURE 784 is an extremely reactive, orange colored solid photoinitiator for radical polymerisation of unsaturated resins upon exposure to visible light (daylight) or UV light. It is especially suited for the curing of photopolymers for imaging or information storage applications. Its self-color as well as its sensitivity to daylight and oxygen limits the use of IRGACURE 784 to specific applications. IRGACURE 784 may be used, after adequate testing, for UV and/or visible light curable formulations based on chemically unsaturated systems - such as those based on a prepolymer - e.g. acrylates - in combination with mono- and multifunctional monomers as reactive thinners. Best curing performance of this product can only be achieved in the absence of oxygen. Its unique absorbance properties together with its outstanding reactivity make IRGACURE 784 especially suited for use in photopolymers, e.g. resists, printing plates and other information storage devices such as optical layers, holograms, laser direct imaging, stereolithography. Curing can be performed either using UV light, visible light (blue-green part of the spectrum) or even light from suitable laser devices, e.g. Ar- Laser (488nm) or FD-Nd/YAG-Laser (532nm). Best performance is obtained if oxygen is excluded from the resin system during curing. Applications in coatings, inks or adhesives may be of further interest. Very reactive, orange colored solid photoinitiator. Used for UV and/or visible light curable formulations based on chemically unsaturated systems such as those based on a prepolymer (acrylates) in combination with mono- and multifunctional monomers as reactive thinners. Suits for inks and coatings.