Flame-resistant polyamides

摘要

To produce flame-resistant polyamides, a polyamide, a co-polyamide or polyamide blend is reacted at high temperature with a monoepoxy-functional phosphorous compound in the form of an addition product of a phosphonic or phosphinic acid anhydride with a polyepoxy compound. The proportion of phosphorous compound is 5-35 wt % of the total weight i.e. of the polyamide mixture.