Trigonox K-90

Product Line Organic peroxides

Trigonox® K-90 is an initiator for (co)polymerization of styrene, butadiene, acrylonitrile and (meth)acrylates. Curing agent for vinyl ester resins.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Africa, Asia, Asia Pacific, Europe, Global, India, Latin America, Middle East, North America, Oceania
  • Molecular Weight

  • Chemical name

    Cumyl hydroperoxide
  • Molecular drawing

    Organic peroxide
  • Applications

    Trigonox® K-90 can be used for the market segments: polymer production, thermoset composites and acrylics production with their different applications/functions. For more information please check our website and/or contact us.

Market Segments

Polymer production

Detailed description

Trigonox® K-90 may be used for various polymerization reactions. It can be used in emulsion, solution and bulk polymerizations. In emulsion processes, Trigonox® K-90 may be activated by organic-soluble or water-soluble reducing agents, or by metal compounds to achieve polymerization at room temperature or lower. When no accelerators are used, effective polymerization can be obtained in the temperature range of 50-200°C. For example, styrene and methyl methacrylate can be polymerized in bulk in the temperature range of 60-100°C using Trigonox® K-90. Trigonox® K-90 may also be used for emulsion polymerization of various vinyl monomers. In this case Trigonox® K-90 may be used in combination with reducing agents to achieve reproducible results at low temperatures.


  • Polymerization initiator


  • Polystyrene
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Thermoset composites

Detailed description

Trigonox® K-90 may be used as an initiator for the room temperature cure of promoted unsaturated polyester and vinyl ester resins, and elevated temperature cure of non-promoted resins. Especially developed for curing vinylester resins in combination with a cobalt accelerator.


  • Curing agent


  • Continuous Laminating,
  • Vinylesters
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Acrylics production

Paints, coatings and inks

Detailed description

Trigonox® K-90 is an initiator (90% active ingredient in aromatic solvent mixture) for (co)polymerization of (meth)acrylates.


  • Polymerization initiator


  • Acrylics
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Get in touch!

For more information about Trigonox K-90, please contact our technical experts. We look forward to hearing from you.

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