Chlorendic acid

Chlorendic acid (CAS 115-28-6) is a chlorinated dicarboxylic acid used as a reactive flame retardant and chemical intermediate in polymer and resin manufacturing.

Where is Chlorendic acid used?

• Unsaturated polyester resins: reacted into the polymer chain to produce flame-retardant laminates
• Construction panels, ducting, and electrical enclosures: composites made from these resins
• Aerospace and defense: self-extinguishing performance meeting stringent specification requirements
• Electronics: circuit board laminates and insulating components requiring sustained flame resistance under thermal load
• Alkyd and specialty resin systems: monomer for automotive and industrial coatings
• Its high chlorine content is incorporated directly into polymer backbones.

Good to know: Reactive flame retardancy cannot be washed out or migrated away like additive-type retardants. These applications often require halogenated flame-retardant certification for safety and compliance standards.

Commercial specifications

• Purity typically 98% or higher for reactive resin applications
• Packaging in multi-kilogram bags through to bulk quantities