Intumescent mouldings
AssigneeBayer Aktiengesellschaft
InventorWulf von Bonin
Life of this patent
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Abstract
Novel intumescent mouldings, which can be produced by heating expandable graphites in moulds to temperatures between 150.degree. C. and 350.degree. C. The mouldings can be used, for example, for purposes of preventive fire protection.
Claims4
An intumescent moulding composition comprising partially expanded graphite which is obtained by heating expandable graphite in a mould to a temperature between 150.degree. C. and 350.degree. C.
A process for producing an expanded graphite moulded article, by heating a mixture of an expandable graphite composition in combination with a binder, comprising ethylene diamine phosphate, to a temperature between 150.degree. C. and 350.degree. C. in a mould wherein the expandable graphite used contains NO.sub.x and/or SO.sub.x as expanding agent.
Dependencies are inferred from the claim text.