| 摘要 |
<p>Flame retardants are described, comprising A. at least one organic phosphonate of formula (I), wherein R is hydrogen, C1-C20alkyl, unsubstituted or C1-C4alkyl-substituted phenyl or naphthyl, R' is hydrogen, C1-C20alkyl, unsubstituted or C1-C4alkyl-substituted phenyl or naphthyl or M1<r+>/r, n is an integer from 0 to 6, M1<r+> is an r-valent metal ion or the ammonium ion, r is an integer from 1 to 4, R<13> is isopropyl, isobutyl, tert-butyl, cyclohexyl or is cycloalkyl substituted by from 1 to 3 C1-C4alkyl groups, R<14 >is hydrogen, C1-C4alkyl, cycloalkyl or is cyclohexyl substituted by from 1 to 3 C1-C4alkyl groups, and R<15> is hydrogen, C1-C18alkyl, trimethylsilyl, benzyl, phenyl or sulfonyl; and B. at least one flame retardant component based on a nitrogen compound, and also the use thereof in synthetic polymers.</p> |
