Reaction product of a phosphorous acid with ethyleneamines,...

C - Chemistry – Metallurgy – 08 – K

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Details

C08K 5/524 (2006.01) C09K 21/12 (2006.01) C08K 5/49 (2006.01)

Patent

CA 2468812

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.

L'invention concerne des agents ignifuges et des compositions contenant ces agents ignifuges. Les agents ignifuges sont préparés par réaction d'éthylènediamine avec de l'acide polyphosphorique; ou par réaction d'une éthylèneamine ou d'un mélange d'éthylèneamines avec de l'acide phosphorique, de l'acide polyphosphorique, de l'acide pyrophosphorique, ou un mélange de ceux-ci. Une solution de 10 % en poids du produit dans l'eau présente un pH situé environ entre 3,5 et 6,5. Les agents ignifuges sont des agents ignifuges ne contenant pas d'halogène et ne produisant pas de gaz de manière indésirable au cours du traitement à des températures de 235 ·C ou même supérieures.

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