AMINOMETHANEPHOSPHONIC ACID ARYL ESTERS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE

摘要

Aminomethanephosphonic acid aryl esters of the formula <IMAGE> in which R1 is an aromatic radical and R2, R3, R4, R5 and R6 independently of one another represent hydrogen atoms, <IMAGE> groups, an optionally substituted C1-10 alkyl radical or an optionally substituted aromatic ring, or salts thereof. These aminomethanephosphonic acid aryl esters are useful as flameproofing agents in foams, thermoplastics and thermosets and as a crosslinking component in oligo-and polycondensates based on monomers containing hydroxy groups.