Bis(2,6-difluoro-3-(1-hydropyrro-1-yl)-phenyl)titanocene(125051-32-3) CAS NO.125051-32-3

Keycure vis-813 has a wide absorption range. Its effective absorption peak is 390460nm, which has been absorbed to about 500nm. It has a wide photosensitive range. It can be used in visible light curing system and has photobleaching effect. This product can be used in both light and dark systems, so it can be used in UV coatings, UV inks, UV adhesives, photoresists, photopolymerization plates, composites, tooth fillers, etc. This product can be used alone or in combination with other photoinitiators according to the actual test results. The recommended addition amount is 0.1-1 ‰ (w / W).

Chemacure V-813 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.

Chemacure V-813 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 Chemacure V-813 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. The amount of Chemacure V-813 required for optimum performance should be determined in trials covering a concentration range.