Intumescence media and the use thereof
AssigneeBayer Aktiengesellschaft
InventorWulf von Bonin
Life of this patent
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Abstract
New intumescence media contain ammonium and/or amine salts of acid phosphates of metals of the 2nd and/or 3rd group of the periodic system of the elements and can be employed for a very wide variety of fire prevention purposes.
Claims13
An intumescence medium which contains an intumescence effective amount of at least one ammonium or amine salt of an acid phosphate of a metal of the 2nd or 3rd group of the periodic system of the elements.
A composition comprising swellable graphite and an intumescence medium which contains an intumescence effective amount of at least one ammonium or amine salt of an acid phosphate of a metal of the 2nd or 3rd group of the periodic system of the elements.
A moulding including an intumescence medium which contains at least one ammonium or amine salt of an acid phosphate of a metal of the 2nd or 3rd group of the periodic system of the elements of the idealized composition of the formula (I)
- Me.sup.n (OPO(OH).sub.2).sub.n.xnA.yH.sub.2 O (I),
- in which
- Me denotes a metal of the 2nd or 3rd group of the periodic system of the elements,
- n denotes the valency of Me,
- x denotes a numerical value between 0.1 and 6,
- A denotes ammonia, amine or mixtures thereof and
- y denotes an integer from 0 to 12.
Dependencies are inferred from the claim text.