The present invention provides a process for preparing N-methylated
melamines in simple steps by using inexpensive raw materials in such a
manner that the proportion of mono-type, bis-type and tris-type of the
N-methylated melamines as prepared can be controlled. The process
comprises reacting by heating melamine with methylamine in the presence of
an acidic catalyst under pressure to substitute at least one amino group
of the melamine by methylamino group.
