A method for the preparation of oligomers, oligomers and their use

摘要

The present invention relates to a process for the preparation of oligomeric by means of a condensation reaction, on oligomers and their use.The object of the invention is to propose new oligomers which, as additives in the introduction into thermoplastics the brittleness and / or the hardness of this thermoplastic plastics and simultaneously reduce their flame retardancy increase.According to the invention, the object is achieved with oligomers are dissolved with a method is to be produced, which is characterized in thatat least one phosphorus compound with at least one acid function,at least one amide compound with an amide functionality of ≧ 2 andat least one polyhydroxyl compound having a hydroxyl functionality ≧ 2at temperatures between 60 and 250°C. in the course of 30 minutes to eight hours in a condensation reaction are reacted.The additives according to the invention are to be used as additives in thermoplastic polymers.