Halogen-free flame retardant compounds

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 251/66 (2006.01) C07D 251/70 (2006.01) C07F 9/02 (2006.01) C08K 3/32 (2006.01)

Patent

CA 2461098

The invention relates to a compound of the general formula: Z1-O- [m(R1PO3),n(R2HPO3]-Z2, in which [m(R1PO3)] represent a copolyphosphate, with m (R1PO3) units and n (R2HPO3) units; R3 represents an ammonium building block; R2 represents a 1,3,5-triazine building block; Z1 and Z2 represent ammonium or 1,3,5-triazine building blocks, to be chosen independently of each other; m and n represent whole numbers greater than or equal to 1; and m+n numbers greater than 3. The invention further relates to a method for the preparation of the above compound and to flame-retardant polymer compositions in which compounds with the above formula are applied as flame retardant, the use of the halogen-free compound in a coating composition and a substrate containing a coating formed from the coating composition that has been cured.

L'invention concerne un composé représenté par la formule Z¿1?-O-[m(R¿1?PO¿3?),n(R¿2?HPO¿3?]-Z¿2?, dans laquelle [m(R¿1?PO¿3?)] représente un copolyphosphate à m (R¿1?PO¿3?) motifs et à n (R¿2?HPO¿3?) motifs; R¿3? représente une séquence d'édification d'ammonium; R¿2? représente une séquence d'édification de 1,3,5-triazine; Z¿1? et Z¿2? représentent des séquences d'édification d'ammonium ou de 1,3,5-triazine à choisir indépendamment l'une de l'autre; m et n représentent des nombres entiers supérieurs ou égaux à 1; et m+n des nombres entiers supérieurs à 3. L'invention concerne également un procédé de préparation des composés précités et de compositions polymères retardatrices de flamme utilisant les composés représentés par la formule précitée, l'utilisation d'un composé sans halogène dans une composition de revêtement et d'un substrat contenant un revêtement formé à partir de la composition de revêtement durcie.

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