Polytriazinyl compounds as flame retardants and light stabilizers

An organic solvent-free process for the production of a water-insoluble halogen-free oligomer or polymer of a 1,3,5-triazine derivative according to the general formula (I):

• wherein X is selected from:
• or X is a heterocyclic radical containing in the ring at least one nitrogen atom which radical is linked to the triazine ring through one of such nitrogen atoms,
• R2 is alkyl or cycloalkyl,
• R1 is a divalent radical of piperazine of the formula
• or R1 is a divalent radical of the formula
• n is an integer in the range of 8 to 20,
• m is an integer in the range of 2 to 6,
• p is an integer in the range of 2 to 12 and,
• X1═OH, NH2 or X, whereby X1 and X may be same or different,
• the process including the steps of:
• a) condensing a cyanuric halogenide with an amine of formula R2—NH2 or with a heterocyclic compound containing in the ring a nitrogen atom, in a molar ratio of about 1:1, to obtain the 4-amino derivative of 2,6-dichloro-1,3,5-triazine, subsequently
• b) reacting the the 4-amino derivative of 2,6-dichloro-1,3,5-triazine with one or more compounds selected from:
• an amine of formula H2N—(CH2)m—NH2, or with piperazine or with an alkyl-substituted derivative of piperazine, wherein the 4-amino derivative of 2,6-dichloro-1,3,5-triazine and the one or more said further compounds are present in a molar ratio of about 1:1 and subsequently,
• c) reacting the reaction product(s) of the foregoing step with a compound of the formula HX1 in the presence of a base, which base is selected from one or more of an excess of HX1 or at least one alkali metal hydroxide.