Abstract: Flame-resistant polymeric compositions, preferably olefinic polymers and/or copolymers, containing 8 to 45% by weight of a flameproofing system. This flameproofing system comprises at least one phosphorus component and a monomeric triazinylpiperazine. The phosphours component is a free-flowing, pulverulent, sparingly water-soluble ammonium polyphosphate, while the triazinylpiperazine used is a pulverulent bistriazinylpiperazine.

Abstract: The invention relates to novel N,N'-bis-1,3,5-triazin-6-ylpiperazines of the formula ##STR1## in which X and Y are identical or different radicals --OR.sup.1, SR.sup.1 or --NR.sup.2 R.sup.3,whereR.sup.1 is a C.sub.1 - to C.sub.18 -alkyl group, a C.sub.5 - to C.sub.18 -cycloalkyl group, a phenyl or naphthyl group, or a C.sub.7 - to C.sub.18 -aralkyl group;R.sup.2 and R.sup.3, independently of one another, are a C.sub.1 - to C.sub.3 -alkyl group, a C.sub.5 - to C.sub.18 -cycloalkyl group, a phenyl or naphthyl group, or a C.sub.7 - to C.sub.18 -aralkyl group, or--NR.sup.2 R.sup.3 are piperidinyl or morpholinyl.In addition, 2 processes for the preparation of the novel substances are described.

Abstract: Self-extinguishing polyurethanes are obtained by stepwise polyaddition of diisocyanates or polyisocyanates with polyols with the addition of a flameproofing agent comprising a phosphorus component and a nitrogen component as synergists. While the phosphorus component used is an ammonium polyphosphate which is sparingly soluble in water and, if desired, has been microencapsulated with a melamine/formaldehyde resin, the organic nitrogen component is selected from the group consistinga) bis(triazinyl)piperazinesb) hydroxyalkyl isocyanuratesc) condensation products of amino-1,3,5-triazines with aldehydes.