Substituted polyaminotriazines and the method of their preparation.

摘要

Polyaminotriazines of the formula applicable as light stabilizers <CHEM> in which R<1> and R<2>, either the same or different, stand for hydrogen 2,2,6,6 - tetramethyl - 4 - piperidyl group, or 1,2.2, 6,6 - pentamethyl - 4 - piperidyl group; R<3> and R<4>stand for 1 - methyl - 2 - (2,2,6,6 - tetramethyl - 4 - piperidyl) ethyl group or its 1,2,2,6,6 - pentamethyl analogue, or R<3> = H; Z<1> and Z<2> , either the same or different, stand for the groups; 2,2,6,6 - tetramethyl - 4 - piperidyl amino-, 1 - methyl - 2 - (2,2,6,6 - tetramethyl - 4 - piperidyl) ethylamino-, C1 - C18 alkyl amino- , di(C1 - C4 alkyl) amino-, cyclohexylamino-, dicyclohexyl amino, N(C1 - C4 alkyl) cyclohexylamino-, or morpholino-. The group X = Cl, Y = H ; X and Y are also groups of the reaction component used in the excess. The molecular weight Mn varies between 1500 and 12000; m=1-10, n=1-8, p=1-5. The method of preparation of polyaminotriazines of the above formula is based upon the successive condensation of 2,4 - dichloro - s - triazine (containing 5 wt.% at maximum of cyanuric chloride) occurring via the substituents Z<1> and Z<2> in position 6 with diamines HN(R<1>) (CH2)6NH(R<2>) and HN(R<3>) (CH2)6NH(R<4>) used either in excess or in deficit from 1 to 25 mol. %. The reaction is carried out at the temperatures from 70 to 210 DEG C in an inert organic solvent and in the presence of inorganic base under opto ional addition of amino compound such as C1- C18alkyl amine, cyclohexyl amine, morpholine and 2,2,6,6 - tetramethyl - 4 - aminopiperidine.