| abstract |
The invention relates to a compound of the general formula: Z 1 —O—[m(R 1 PO 3 ),n(R 2 HPO 3 ]—Z 2 , in which [m(R 1 PO 3 )] represent a copolyphosphate, with m (R 1 PO 3 ) units and n (R 2 HPO 3 ) units; R 3 represents an ammonium building block; R 2 represents a 1,3,5-triazine building block; Z 1 and Z 2 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. |