Perovion CHP L80 is a liquid organic peroxide based on cumyl hydroperoxide (CHP) chemistry, supplied as an 80% active solution in an aromatic solvent mixture for use as a radical initiator in polymerization and curing processes. Perovion CHP L80 supports emulsion, solution, and bulk polymerization of styrene, butadiene, acrylonitrile, acrylates, and methacrylates across a broad effective temperature range spanning both moderate and elevated reactor conditions. Perovion CHP L80 is also used for curing vinyl ester resins when combined with a cobalt accelerator, giving it a dual role across polymer production and thermoset composite processing that few single-purpose initiators can match.
Perovion CHP L80 Overview
Cumyl hydroperoxide is a hydroperoxide-type organic peroxide derived from cumene, offering a broad effective decomposition temperature range compared with many other peroxide classes. Perovion CHP L80 is supplied at 80% active content in an aromatic solvent mixture, which improves handling safety and dosing accuracy relative to undiluted peroxide concentrates. Without added accelerators, effective polymerization initiation can typically be achieved across a wide temperature window, while bulk polymerization of monomers such as styrene and methyl methacrylate is generally carried out at more moderate temperatures, giving process engineers latitude to match initiator behavior to existing equipment capabilities and target production rates.
As a liquid initiator, Perovion CHP L80 is metered directly into polymerization reactors according to the target reaction temperature and desired molecular weight. In vinyl ester resin curing applications, Perovion CHP L80 is typically used together with a cobalt accelerator system to achieve the desired gel and cure profile for thermoset composite manufacturing, supporting corrosion-resistant tank, pipe, and structural component production.
Key Features
- Broad Effective Temperature Range: Perovion CHP L80 can support effective polymerization initiation across a wide temperature window when no accelerator is used, giving formulators flexibility across different reactor conditions.
- Diluted for Safer Handling: Supplied at 80% active content in an aromatic solvent mixture, Perovion CHP L80 offers improved handling safety and more accurate dosing than undiluted hydroperoxide concentrates.
- Broad Monomer Compatibility: Perovion CHP L80 is suitable for the polymerization of styrene, butadiene, acrylonitrile, acrylates, and methacrylates, supporting a wide range of polymer production applications.
- Vinyl Ester Curing Capability: In addition to polymerization initiation, Perovion CHP L80 functions as a curing agent for vinyl ester resin systems when combined with a cobalt accelerator.
- Suitable for Multiple Polymerization Methods: Perovion CHP L80 is applicable to emulsion, solution, and bulk polymerization processes, giving process engineers flexibility to match the initiator to their specific production method and reactor configuration.
Typical Applications
Perovion CHP L80 functions as a radical initiator for emulsion, solution, and bulk polymerization of styrene, butadiene, acrylonitrile, and (meth)acrylate monomers, supporting the production of a wide range of specialty and commodity polymers. Its broad effective temperature range makes it adaptable to reactor designs operating from moderate to elevated temperatures, reducing the need to requalify initiator systems when process conditions shift.
Common end uses for Perovion CHP L80 include polymer production and modification, curing of vinyl ester resins in thermoset composite applications for corrosion-resistant equipment, and specialty polymer systems requiring a hydroperoxide-type initiator. It is also applicable to processes where a broad activation temperature window offers greater production flexibility than more narrowly defined peroxide classes.
Technical Specifications
- Chemical Type: Cumyl hydroperoxide (CHP)
- CAS No.: 80-15-9
- Physical Form: Liquid
- Active Content: Approximately 80% in an aromatic solvent mixture (indicative for this grade; to be confirmed based on the final specification sheet)
- Effective Initiation Temperature Range: Approximately 50-200°C without accelerator (indicative; to be confirmed based on the final specification sheet)
- Bulk Polymerization Temperature Range: Approximately 60-100°C for styrene and methyl methacrylate (indicative; to be confirmed based on the final specification sheet)
- Shelf Life: Approximately 3 months under recommended storage conditions (indicative; to be confirmed based on the final specification sheet)
- Density at 20°C: To be confirmed based on the final specification sheet.
Thermal Stability
- Organic peroxides, including Perovion CHP L80, are thermally unstable substances and must be handled and stored with appropriate care at all times to avoid accidental decomposition.
- Self-Accelerating Decomposition Temperature (SADT): To be confirmed based on the final specification sheet.
Storage Recommendations
- Recommended maximum storage temperature: To be confirmed based on the final specification sheet.
- Store in a dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources.
- Keep containers tightly closed and stored upright to prevent leakage and contamination, and label partially used containers clearly.
- Avoid contact with reducing agents, acids, alkalis, and heavy metal compounds that can accelerate decomposition, except where a controlled accelerator system is intended.
- Rotate stock on a first-in, first-out basis and inspect containers periodically for signs of leakage, swelling, or damage.
Packaging & Transport
- Standard Packaging: Available in approved industrial packaging, such as drums or IBCs; exact options to be confirmed based on the final specification sheet.
- Net Weight: To be confirmed based on the final specification sheet.
- UN Number: To be confirmed based on the final specification sheet.
- Transport Class: To be confirmed based on the final specification sheet.
- Certificate of Analysis (COA): Provided per batch upon shipment, confirming active content and key quality parameters.
- Documentation: Labels and Safety Data Sheet (SDS) prepared in accordance with transport and destination regulations; industrial and professional use only.
Perovion CHP L80: Safety & Handling
Perovion CHP L80 should be handled in accordance with applicable safety procedures for organic peroxides. The product is classified as an oxidizing and thermally unstable material and requires appropriate storage, segregation, and handling measures to prevent accidental decomposition or contamination. Users are advised to review the Safety Data Sheet prior to handling and to implement suitable personal protective equipment and engineering controls, including eye protection, chemical-resistant gloves, and adequate ventilation in the work area, particularly given its aromatic solvent content.
Spills should be contained and cleaned up promptly using absorbent materials compatible with organic peroxides, and contaminated waste should be disposed of according to local regulations and destination-specific environmental requirements. Safety Data Sheet and destination-compliant labeling information for Perovion CHP L80 are available upon request. For related products, see also Perovion CHP L90 and Perovion TBHP L70.