Abstract:
The invention relates to a method for producing elastic foamed materials which are based on a melamine/formaldehyde condensation product. According to the inventive method, a pre-condensate, having a mol ratio of melamine to formaldehyde which is greater than 1: 2, is foamed. Practically no emission of formaldehyde emanates from the foamed materials. No signal or only a very low signal ranging from 65ppm to 85 ppm occurs in the NMR 13 C/MAS spectrum.
Abstract translation:本发明涉及一种方法,用于生产基于三聚氰胺/甲醛缩合产物的弹性泡沫体,其中,从大于1具有三聚氰胺到的甲醛的摩尔比预缩合:发泡2 该泡沫塑料显示出65〜85 ppm的,没有或仅有非常弱的信号的区域中无甲醛释放量实用C / MAS NMR谱中13发生。