Trigonox® 239 is a promoted cumyl hydroperoxide: best cure system for vinylester resins.
Brand
Trigonox®
Chemical family
Organic peroxide
CAS number
80-15-9
Physical form
Liquid
Regional availability
Africa, Asia, Asia Pacific, China, Europe, India, Latin America, Middle East, North America, Oceania
Molecular Weight
152.2
Chemical name
Cumyl hydroperoxide
Molecular drawing
Applications
Trigonox® 239 is a peroxide mixture based on cumene hydroperoxide. Trigonox® 239 is especially developed for the cure of vinylester or phenacryl resins in combination with a cobalt accelerator. Trigonox® 239 can successfully be used instead of generally applied keton peroxides like Butanox LPT with the following features: no ‘gassing’ after the peroxide is mixed in the preaccelerated vinylester resin. This phenomenon is very often recognized as a disadvantage of ketone peroxides in vinylester resins. The use of an amine accelerator is in general not necessary to achieve a good cure, a fast cure in thin coatings and laminates up to a thickness of approx. 6 mm and a low peak exotherm in thick laminates.
Trigonox® 239 is a peroxide mixture based on cumyl hydroperoxide, specially developed for curing vinylester resins in combination with a cobalt accelerator.
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