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US 2010/0160476 A1Published application
Flame-retardant additives
AssigneeHenkel AG & Co. KGaA
InventorsManfred Döring, Ulrich Arnold, Marcel Roth, Emilie Barriau, Ulrike Schmidt-Freytag, Volker Alstädt, Felipe Wolff Fabris
Life of this patent
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Abstract
The present invention relates to a curable preparation, containing an epoxy resin system, an initiator, and at least one flame-retardant agent, selected from a compound of the formula KA, wherein K=mono, di, oligo, and/or polphosphonium cation, and A=low-coordinating anion, and to the sue of the compounds of the general formula KA as a flame-retardant agent for resins systems.
Claims18
Use of at least one compound of the general formula (I),
- KA (I)
- with K=mono-, di-, oligo- and/or polyphosphonium cation and A=weakly coordinating anion, wherein the weakly coordinating anion A is selected from hexafluoroantimonate (SbF6−), hexafluorophosphate (PF6−), tetrafluoroborate (BF4−), hexafluoroaluminate (AlF63−), trifluormethanesulfonate (CF3SO3−), hexafluoroarsenate (AsF6−), tetrakis(pentafluorophenyl)borate (B[C6F5]4−), tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (B[C6H3(CF3)2]4−), tetra phenyl borate (B[C6H5]4−), hexafluorotitanate (TiF62−), pentachlorotitanate (TiCl5−), pentachlorostannate (SnCl5−), hexafluorogermanate (GeF62), hexafluorosilicate (SiF62−), hexafluoronickelate (NiF62−) or hexafluorozirconate (ZrF62−) as flame-retardants for resin systems.
A curable preparation, comprising
- a) an epoxy resin system,
- b) an initiator selected from the following compounds or their mixtures:
- i) compounds of the general formula (XV),
- {[M(L)a]Ab}c (XV),
- with M=metal cation, L=ligand, A=weakly coordinating anion, a=1 to 10, b=1 to 10 and c=1 to 20 000 000, wherein a, b and c can represent whole numbers and numerical ranges and a can also additionally represent non whole numbers,
- ii) compounds of the general formula (XVI),
- IA (XVI)
- with I=diaryliodonium salt and A=weakly coordinating anion or
- iii) compounds of the general formula (XVII),
- SA (XVII)
- with S=triarylsulfonium salt and A=weakly coordinating anion,
- c) at least one flame-retardant of the general formula (I)
- KA (I),
- with K=mono-, di-, oligo- and/or polyphosphonium cation
- and A=weakly coordinating anion,
- wherein the weakly coordinating anion A of the initiator and of the flame-retardant is selected from hexafluoroantimonate (SbF6−), hexafluorophosphate (PF6−), tetrafluoroborate (BF4−), hexafluoroaluminate (AlF63−), trifluormethanesulfonate (CF3SO3−), hexafluoroarsenate (AsF6−), tetrakis(pentafluorophenyl)borate (B[C6F5]4−), tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (B[C6H3(CF3)2]4−), tetraphenylborate (B[C6H5]4−), hexafluorotitanate (TiF62−), pentachlorotitanate (TiCl5−), pentachlorostannate (SnCl5−), hexafluorogermanate (GeF62−), hexafluorosilicate (SiF62−), hexafluoronickelate (NiF62−) or hexafluorozirconate (ZrF62−).
13 more elements
Dependencies are inferred from the claim text.