Flame-proof polyester molding compositions comprising hydrotalcite, red phosphorus and melamine cyanurate

A molding composition comprising

• A) one or more polymers selected from the group consisting of polyester, polyester carbonate and polycarbonate,
• B) 5 to 30 parts by weight of a flame retardant containing
• b1) 16 to 50% by weight with respect to B) of red phosphorus, and
• b2) 50 to 84% by weight with respect to B) of at least one nitrogen compound selected from the group consisting of melamine, melamine cyanurate, melamine oxalate, melamine phosphate prim., melamine phosphate sec. melamine pyro-phosphate sec., neopentyl glycol boric acid melamine, polymeric melamine phosphate and guanidine salts,
• C) 0.001 to 0.69 parts by weight of a hydrotalcite, as well as
• D) 1 to 50 parts by weight of fillers and/or reinforcing agents, and
• E) 0 to 50 parts by weight of at least one functional additive selected from the group consisting of thermal stabilizers, anti-thermal crosslinking agents, UV stabilizers, plasticizers, flow enhancers, processing aids, impact modifiers, flame-retardant agents, anti-drip agents, internal lubricants, mold release agents, nucleating agents, anti-static agents, colorants and pigments,
• wherein the sum of the proportions of A to E is 100 parts by weight.