REACTION PRODUCT OF A PHOSPHOROUS ACID WITH ETHYLENEAMINES, FORMALDEHYDE, AND AMINE FOR FLAME RESISTANCE

摘要

Flame retardants, and compositions containing the flame retardants are disclosed. The flame retardants are prepared reacting ethylene diamine with polyphosphoric acid or reacting an ethyleneamine or a mixture of ethyleneamines with phosphoric acid, polyphosphoric acid, pyrophosphoric acid, or a mixtures thereof. A 10% by weight solution of the product in water has a pH between about 3.5 to 6.5. The flame retardants are non-halogen containing flame retardants that do not gas undesirably during processing at temperatures of 235°C or even higher.