| 摘要 |
The invention relates to a fire-protection coating which forms an insulating layer, which comprises a flame retardant mixture which comprises a phosphorus/nitrogen flame retardant and comprises a phosphinic salt of the formula (I) and/or comprises a diphosphinic salt of the formula (II) and/or comprises polymers of these, where R<SUP>1</SUP>, R<SUP>2 </SUP>are identical or different and are C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl, linear or branched, and/or aryl; R<SUP>3 </SUP>is C<SUB>1</SUB>-C<SUB>10</SUB>-alkylene, linear or branched, C<SUB>6</SUB>-C<SUB>10</SUB>-arylene, -alkylarylene or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4 and x is from 1 to 4.
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