Synergistic flameproofing combination for polymers
AssigneeClariant GmbH
InventorsBernd Nass, Wolfgang Wanzke
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Abstract
The present invention relates to a synergistic flameproofing combination for polymers, in particular for ABS, which contains, as component A, a phosphinic acid salt of the formulae (I) defined in the description and/or a diphosphinic acid salt of the formula (II) and/or polymers thereof and which contains, as component B, a nitrogen-containing phosphate or a mixture of the compounds defined by the formulae.
Claims11
A synergistic non-halogenated flameproofing combination for non-halogenated polymers, containing, as component A, a phosphinic acid salt of the formula (I) and/or a diphosphinic acid salt of the formula (II) and/or polymers thereof
- in which
- R1 and R2 are linear or branched C1-C6-alkyl or phenyl;
- R3 is linear or branched C1-C10-alkylene, C6-C10-arylene or alkylarylene or arylalkylene;
- M is a calcium, aluminum or zinc ion;
- m is 2 or 3;
- n is 1 or 3;
- x is 1 or 2;
- and, as component B, a nitrogen-containing phosphate of the formulae (NH4)yH3−yPO4 or (NH4PO3)z, in which
- y is from 1 to 3 and
- z is any desired number.
A process for flameproofing a polymer to form a prepared non-halogenated polymer compound comprising adding to a non-halogenated polymer a synergistic non-halogenated flameproofing combination comprised of a component A and a component B, wherein the component A is a phosphinic acid salt of the formula (I), a diphosphinic acid salt of the formula (II), a polymer thereof, or a combination thereof
- in which
- R1 and R2 are linear or branched C1-C6-alkyl or phenyl;
- R3 is linear or branched C1-C10-alkylene, C6-C10-arylene or alkylarylene or arylalkylene;
- M is a calcium, aluminum or zinc ion,
- m is 2 or 3;
- n is 1 or 3;
- x is 1 or 2;
- and
- the component B is a nitrogen-containing phosphate of the formulae (NH4)yH3−yPO4 or (NH4PO3)z, in which
- y is from 1 to 3 and
- z is any number.
Dependencies are inferred from the claim text.