Fire Retardants of Guanidine or Melamine Type

The “Apinon” series of fire retardants, which are synthetic agents prepared from basic organic nitrogen compounds and fire-retardant inorganic acids, are gaining attention as environmentally-friendly fire retardants containing no halogens, formaldehydes and heavy metals that cause dioxin formation. Guanidine, a basic compound, and salt formed by sulfuric acids or phosphoric acids both possess flame retardancy towards cellulose as a result of dehydration carbonization and are ideal flame retardants for paper and fibers.
Guanylic urea-based flame retardants has a characteristic of causing significant foaming. Melamine-based flame retardants, which are synthesized from melamine and acids that exhibit strong flame retardancy, possess higher flame retardancy as flame retardants for resins than cyanuric melamine acids.