Nouryon Trigonox 21-CH50 tert-butyl peroxy-2-ethylhexanoate, 50% odorless mineral oil solution 3006-82-4

Trigonox 21-CH50
tert-Butyl peroxy-2-ethylhexanoate, 50% solution in odorless mineral oil
CAS Number: 3006-82-4
Physical Form: Liquid
Trigonox® 21-CH50 is an initiator for the polymerization of (methyl)acrylates and ethylene. It is used as an initiator for curing unsaturated polyester, vinyl ester, and acrylic thermosetting resins.
Applications
For Polymer Production / Poly(meth)acrylate: Ethylene Polymerization: Trigonox® 21-CH50 is an effective initiator for the production of low-density polyethylene (LDPE). It is used in both tubular and autoclave processes. In most cases, it is used in combination with other peroxides to ensure a broad reaction range. Styrene Polymerization: In suspension polymerization processes, Trigonox® 21-CH50 can be used to polymerize styrene at approximately 90°C. The activity of Trigonox® 21-CH50 is comparable to that of dibenzoyl peroxide (Perkadox L-W75). Typically, Trigonox® 21-CH50 is used in combination with initiators such as tert-butyl peroxybenzoate (Trigonox® C). Polymerization of Acrylates and Methacrylates: Trigonox® 21-CH50 is an effective initiator for the solution (co)polymerization of acrylates and methacrylates within a temperature range of 65–100°C, particularly for the manufacture of coatings. Trigonox® 21-CH50 can also be used as an initiator for bulk and suspension (co)polymerization of acrylates and methacrylates. For thermosetting resins: Trigonox® 21-CH50 is an initiator suitable for curing unsaturated polyester, vinyl ester, and acrylic thermosetting resins within the temperature range of 100–140°C (212–284°F). Trigonox® 21-CH50 is a classic intermediate initiator for pultrusion applications and is also widely used in molded plastics and field-curing pipe systems. The activation temperature of Trigonox® 21-CH50 can be lowered by using metal salts such as cobalt octoate.